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 DATA SHEET
MOS INTEGRATED CIRCUIT
PD161602A/B
360/396-OUTPUT TFT-LCD SOURCE DRIVER (COMPATIBLE WITH 64-GRAY SCALES)
DESCRIPTION
The PD161602A/B is a source driver for TFT-LCDs supporting 64 gray-scale display and can operate with a supply voltage of 2.5 V for the logic block and 5.0 V for the driver block. Data input as 6-bit x 3-dot digital data is output as 64 -corrected values using an internal D/A converter and 5 external power modules, thus achieving a 260,000-color (full-color) display. In addition, the difference with A articles and B articles is only a difference in
compensation resistance.
FEATURES
* CMOS level input * 360/396 outputs * Input of 6 bits (gray-scale data) by 3 dots * Capable of outputting 64 values by means of 5 external power modules and a D/A converter * Output dynamic range: VSS2 to VDD2 * High-speed data transfer: fCLK = 15 MHz MAX. (internal data transfer speed when operating at VDD1 = 2.5 V) * Level inversion -correction power supply is possible * Logic power supply voltage (VDD1): 2.2 to 3.6 V * Driver power supply voltage (VDD2): 4.5 to 5.5 V # ORDERING INFORMATION Part Number Package Chip Chip
PD161602AP PD161602BP
Remark Purchasing the above chip entail the exchange of documents such as a separate memorandum or product quality, so please contact one of our sales representatives.
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.
Document No. S15381EJ1V0DS00 (1st edition) Date Published May 2002 NS CP (K) Printed in Japan
The mark # shows major revised points.
(c)
2001
PD161602A/B
# 1. BLOCK DIAGRAM
STHL VDD1 VSS1 C131 C132
STHR R,/L CLK INV D00 to D05 D10 to D15 D20 to D25 INBUF C1 C2
132-bit bidirectional shift register
Data register
Osel STB CM Mode control
POL AP VCsel VCOM
Latch
VCOM BUF
Level shifter
VDD2 VSS2
V0 to V4
GAM VDD1 TESTIN TESTO1 TESTO2
BA
control
D/A converter
BIAS control
Output buffer
S1
S2
S3
S396
#
Remark /xxx indicates active low signal.
2
Data Sheet S15381EJ1V0DS
PD161602A/B
2. PIN CONFIGURATION (Pad Layout)
Chip size: 16980 x 1620 m
2 2
Bump size (Input/VCOM/test/dummy): 86 x 80 m Bump size (Output): 33 x 120 m Alignment Mark (m) X: -8284.4 Y: 600 X: 8284.4 Y: 600
2
397 398 Y(-
1
510 509
X(+
407 408 72 m 60 m 72 m 60 m 72 m 72 m 499
500
Driver output pad
40 m plover 33 m
120 m
Input/VCOM/test/dummy pad
35.5 m
Bump size
86 m
3960 m2
Bump size
80 m
2
6880 m
Data Sheet S15381EJ1V0DS
3
PD161602A/B
Table 2-1. Pad Layout (1/3)
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Pad Name S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 S53 S54 S55 S56 S57 S58 X [ m] 7900.0 7860.0 7820.0 7780.0 7740.0 7700.0 7660.0 7620.0 7580.0 7540.0 7500.0 7460.0 7420.0 7380.0 7340.0 7300.0 7260.0 7220.0 7180.0 7140.0 7100.0 7060.0 7020.0 6980.0 6940.0 6900.0 6860.0 6820.0 6780.0 6740.0 6700.0 6660.0 6620.0 6580.0 6540.0 6500.0 6460.0 6420.0 6380.0 6340.0 6300.0 6260.0 6220.0 6180.0 6140.0 6100.0 6060.0 6020.0 5980.0 5940.0 5900.0 5860.0 5820.0 5780.0 5740.0 5700.0 5660.0 5620.0 Y [ m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 No. 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 Pad Name S59 S60 S61 S62 S63 S64 S65 S66 S67 S68 S69 S70 S71 S72 S73 S74 S75 S76 S77 S78 S79 S80 S81 S82 S83 S84 S85 S86 S87 S88 S89 S90 S91 S92 S93 S94 S95 S96 S97 S98 S99 S100 S101 S102 S103 S104 S105 S106 S107 S108 S109 S110 S111 S112 S113 S114 S115 S116 X [m] 5580.0 5540.0 5500.0 5460.0 5420.0 5380.0 5340.0 5300.0 5260.0 5220.0 5180.0 5140.0 5100.0 5060.0 5020.0 4980.0 4940.0 4900.0 4860.0 4820.0 4780.0 4740.0 4700.0 4660.0 4620.0 4580.0 4540.0 4500.0 4460.0 4420.0 4380.0 4340.0 4300.0 4260.0 4220.0 4180.0 4140.0 4100.0 4060.0 4020.0 3980.0 3940.0 3900.0 3860.0 3820.0 3780.0 3740.0 3700.0 3660.0 3620.0 3580.0 3540.0 3500.0 3460.0 3420.0 3380.0 3340.0 3300.0 Y [ m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 No. 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 Pad Name S117 S118 S119 S120 S121 S122 S123 S124 S125 S126 S127 S128 S129 S130 S131 S132 S133 S134 S135 S136 S137 S138 S139 S140 S141 S142 S143 S144 S145 S146 S147 S148 S149 S150 S151 S152 S153 S154 S155 S156 S157 S158 S159 S160 S161 S162 S163 S164 S165 S166 S167 S168 S169 S170 S171 S172 S173 S174 X [ m] 3260.0 3220.0 3180.0 3140.0 3100.0 3060.0 3020.0 2980.0 2940.0 2900.0 2860.0 2820.0 2780.0 2740.0 2700.0 2660.0 2620.0 2580.0 2540.0 2500.0 2460.0 2420.0 2380.0 2340.0 2300.0 2260.0 2220.0 2180.0 2140.0 2100.0 2060.0 2020.0 1980.0 1940.0 1900.0 1860.0 1820.0 1780.0 1740.0 1700.0 1660.0 1620.0 1580.0 1540.0 1500.0 1460.0 1420.0 1380.0 1340.0 1300.0 1260.0 1220.0 1180.0 1140.0 1100.0 1060.0 1020.0 980.0 Y [m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2
4
Data Sheet S15381EJ1V0DS
PD161602A/B
Table 2-1. Pad Layout (2/3)
No. 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 Pad Name S175 S176 S177 S178 S179 S180 S181 S182 S183 S184 S185 S186 S187 S188 S189 S190 S191 S192 S193 S194 S195 S196 S197 S198 S199 S200 S201 S202 S203 S204 S205 S206 S207 S208 S209 S210 S211 S212 S213 S214 S215 S216 S217 S218 S219 S220 S221 S222 S223 S224 S225 S226 S227 S228 S229 S230 S231 S232 X [ m] 940.0 900.0 860.0 820.0 780.0 740.0 700.0 660.0 620.0 580.0 540.0 500.0 460.0 420.0 380.0 340.0 300.0 260.0 220.0 180.0 140.0 100.0 60.0 20.0 -20.0 -60.0 -100.0 -140.0 -180.0 -220.0 -260.0 -300.0 -340.0 -380.0 -420.0 -460.0 -500.0 -540.0 -580.0 -620.0 -660.0 -700.0 -740.0 -780.0 -820.0 -860.0 -900.0 -940.0 -980.0 -1020.0 -1060.0 -1100.0 -1140.0 -1180.0 -1220.0 -1260.0 -1300.0 -1340.0 Y [ m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 No. 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 Pad Name S233 S234 S235 S236 S237 S238 S239 S240 S241 S242 S243 S244 S245 S246 S247 S248 S249 S250 S251 S252 S253 S254 S255 S256 S257 S258 S259 S260 S261 S262 S263 S264 S265 S266 S267 S268 S269 S270 S271 S272 S273 S274 S275 S276 S277 S278 S279 S280 S281 S282 S283 S284 S285 S286 S287 S288 S289 S290 X [m] -1380.0 -1420.0 -1460.0 -1500.0 -1540.0 -1580.0 -1620.0 -1660.0 -1700.0 -1740.0 -1780.0 -1820.0 -1860.0 -1900.0 -1940.0 -1980.0 -2020.0 -2060.0 -2100.0 -2140.0 -2180.0 -2220.0 -2260.0 -2300.0 -2340.0 -2380.0 -2420.0 -2460.0 -2500.0 -2540.0 -2580.0 -2620.0 -2660.0 -2700.0 -2740.0 -2780.0 -2820.0 -2860.0 -2900.0 -2940.0 -2980.0 -3020.0 -3060.0 -3100.0 -3140.0 -3180.0 -3220.0 -3260.0 -3300.0 -3340.0 -3380.0 -3420.0 -3460.0 -3500.0 -3540.0 -3580.0 -3620.0 -3660.0 Y [ m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 No. 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 Pad Name S291 S292 S293 S294 S295 S296 S297 S298 S299 S300 S301 S302 S303 S304 S305 S306 S307 S308 S309 S310 S311 S312 S313 S314 S315 S316 S317 S318 S319 S320 S321 S322 S323 S324 S325 S326 S327 S328 S329 S330 S331 S332 S333 S334 S335 S336 S337 S338 S339 S340 S341 S342 S343 S344 S345 S346 S347 S348 X [ m] -3700.0 -3740.0 -3780.0 -3820.0 -3860.0 -3900.0 -3940.0 -3980.0 -4020.0 -4060.0 -4100.0 -4140.0 -4180.0 -4220.0 -4260.0 -4300.0 -4340.0 -4380.0 -4420.0 -4460.0 -4500.0 -4540.0 -4580.0 -4620.0 -4660.0 -4700.0 -4740.0 -4780.0 -4820.0 -4860.0 -4900.0 -4940.0 -4980.0 -5020.0 -5060.0 -5100.0 -5140.0 -5180.0 -5220.0 -5260.0 -5300.0 -5340.0 -5380.0 -5420.0 -5460.0 -5500.0 -5540.0 -5580.0 -5620.0 -5660.0 -5700.0 -5740.0 -5780.0 -5820.0 -5860.0 -5900.0 -5940.0 -5980.0 Y [m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2
Data Sheet S15381EJ1V0DS
5
PD161602A/B
Table 2-1. Pad Layout (3/3)
No. 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 Pad Name S349 S350 S351 S352 S353 S354 S355 S356 S357 S358 S359 S360 S361 S362 S363 S364 S365 S366 S367 S368 S369 S370 S371 S372 S373 S374 S375 S376 S377 S378 S379 S380 S381 S382 S383 S384 S385 S386 S387 S388 S389 S390 S391 S392 S393 S394 S395 S396 Dummy1 Dummy2 Dummy3 Dummy4 Dummy5 Dummy6 Dummy7 Dummy8 Dummy9 Dummy10 X [ m] -6020.0 -6060.0 -6100.0 -6140.0 -6180.0 -6220.0 -6260.0 -6300.0 -6340.0 -6380.0 -6420.0 -6460.0 -6500.0 -6540.0 -6580.0 -6620.0 -6660.0 -6700.0 -6740.0 -6780.0 -6820.0 -6860.0 -6900.0 -6940.0 -6980.0 -7020.0 -7060.0 -7100.0 -7140.0 -7180.0 -7220.0 -7260.0 -7300.0 -7340.0 -7380.0 -7420.0 -7460.0 -7500.0 -7540.0 -7580.0 -7620.0 -7660.0 -7700.0 -7740.0 -7780.0 -7820.0 -7860.0 -7900.0 -8031.4 -8367.0 -8367.0 -8367.0 -8367.0 -8367.0 -8367.0 -8367.0 -8367.0 -8367.0 Y [m] 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 667.7 512.2 687.0 347.0 247.0 147.0 47.0 -53.1 -153.1 -253.1 -353.1 -453.2 No. 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 Pad Name Dummy11 Dummy12 VCOM STHL Dummy13 VDD2 VDD2 VDD2 Dummy14 VDD1 VDD1 VDD1 Dummy15 VSS1 VSS1 VSS1 Dummy16 VSS2 VSS2 VSS2 Dummy17 VCSEL R,/L OSEL BA GAM CM POL AP STB D25 D24 D23 D22 D21 D20 CLK Dummy18 V4 V4 V4 Dummy19 V3 V3 V3 Dummy20 V2 V2 V2 Dummy21 V1 V1 V1 Dummy22 V0 V0 V0 Dummy23 X [ m] -8367.0 -8254.8 -8079.8 -7829.8 -7654.8 -7393.4 -7293.4 -7193.4 -6932.0 -6831.9 -6732.0 -6632.0 -6456.9 -6278.6 -6178.7 -6078.7 -5903.7 -5728.7 -5628.7 -5528.7 -5350.4 -5175.4 -4925.3 -4675.3 -4425.3 -4175.3 -3925.3 -3675.2 -3425.2 -3175.2 -2925.2 -2675.2 -2425.1 -2175.1 -1925.1 -1675.1 -1425.1 -1250.0 -1075.0 -975.0 -875.1 -700.0 -525.0 -425.0 -325.1 -150.0 25.1 125.0 225.0 400.0 575.1 675.0 775.0 950.0 1125.1 1225.1 1325.0 1500.1 Y [m] -553.2 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -686.9 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 No. 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 Pad Name INV D15 D14 D13 D12 D11 D10 D05 D04 D03 D02 D01 D00 TESTO1 TESTO2 TESTIN Dummy24 VDD1 VDD1 VDD1 Dummy25 VSS1 VSS1 VSS1 Dummy26 VSS2 VSS2 VSS2 Dummy27 VDD2 VDD2 VDD2 Dummy28 STHR Dummy29 Dummy30 Dummy31 Dummy32 Dummy33 Dummy34 Dummy35 Dummy36 Dummy37 Dummy38 Dummy39 Dummy40 X [ m] 1675.1 1925.1 2175.1 2425.1 2675.2 2925.2 3175.2 3425.2 3675.2 3925.3 4175.3 4425.3 4675.3 4925.3 5175.4 5425.4 5600.4 5775.5 5875.5 5975.4 6075.5 6253.8 6353.8 6453.8 6628.8 6803.8 6903.8 7003.7 7182.0 7443.5 7543.4 7643.4 7904.8 8079.8 8254.8 8367.0 8367.0 8367.0 8367.0 8367.0 8367.0 8367.0 8367.0 8367.0 8367.0 8031.4 Y [ m] -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -687.0 -553.2 -453.2 -353.1 -253.1 -153.1 -53.1 47.0 147.0 247.0 347.0 687.0
6
Data Sheet S15381EJ1V0DS
PD161602A/B
#
3. PIN FUNCTIONS
(1/2)
Pin Symbol S1 to S396 Pin Name Driver output Pad No. I/O Description 1 to 396 Output The D/A converted 64-gray-scale analog voltage is output. Osel = L: S1 to S396 Osel = H: S19 to S378
477 to 472 471 to 466 442 to 437
D00 to D05 D10 to D15 D20 to D25 R,/L
Display data input
Input
The display data is input with a width of 18 bits, viz., the gray scale data (6 bits) by 3 dots (1 pixels). DX0: LSB, DX5: MSB These refer to the shift direction control input. The shift directions of the shift registers are as follows. R,/L = L (left shift): STHL (input), S396 S1 STHR (output) R,/L = H (right shift) : STHR (input), S1 S396 STHL (output) R,/L = L (left shift): STHL (input), S378 S19 STHR (output) R,/L = H (right shift) : STHR (input), S19 S378 STHL (output) These refer to the start pulse I/O pins when driver ICs are connected in cascade. Fetching of display data starts when H is read at the rising edge of CLK. R,/L = H (right shift): STHR input, STHL output R,/L = L (left shift): STHL input, STHR output This pin is the shift clock input of the shift register. Display data is captured into the data register at the rising edge. Osel = L: The start pulse output enters high level at the rising edge of the 132 th clock following the start pulse input, and becomes the start pulse of the next level driver. The 133th clock of the first driver becomes the start pulse input of the next driver Osel = H: The start pulse output enters high level at the rising edge of the 120th clock following the start pulse input, and becomes the start pulse of the next driver. The 121th clock of the first driver becomes the start pulse input of the next driver. A timing signal that latches the contents of the data register. When an H level is read at the rising edge of CLK, the contents of the data register are latched and transferred to the D/A converter, and analog voltage corresponding to the display data is output. Also, because the internal operation via CLK continues even after the STB latch, do not stop CLK. The contents of the shift register are cleared at the rising edge of STB. Following a 1-pulse input at startup, this IC will operate normally. Note that the output switch is turned off at the rising edge of STB. For the STB input timing, refer to Switching Characteristics Waveform. This pin inverts the output polarity. The polarity inversion signal data is captured at the rising edge of STB. The -resistor is switched in accordance with the positive/negative polarity. POL = L: Negative polarity POL = H: Positive polarity This pin inverts the input data. Input data in synchronization with the shift clock. INV = L: Normal input INV = H: Data inversion input
Shift direction control input
429
Input
STHR STHL CLK
Right shift start 498 pulse input/output Left shift start 410 pulse input/output Shift clock input 443
I/O I/O Input
STB
Latch input
436
Input
POL
Polarity inversion signal
434
Input
INV
Data inversion
465
Input
VCOM
COM amplitude output
409
Output This pin inverts the signal input from the POL pin and outputs it following conversion to the VDD2 potential at the rising edge of STB. When the VCOM output is not used, VCsel must be fixed to L.
Data Sheet S15381EJ1V0DS
7
PD161602A/B
(2/2)
Pin Symbol VCsel Pin Name Pad No. I/O Input Description The VCOM output is fixed to L. When the VCOM output is not used, VCsel needs to be fixed to L. VCsel = L: VCOM output fixed to L VCsel = H: VCOM signal output in correspondence with POL signal The operating mode is switched to 8-color mode. In this mode, turn off the resistor, amplifier, and BIAS circuit. However, when the -correction power supply is input externally, the -circuit current will flow continuously. CM = L: Normal display mode CM = H: 8-color display mode This pin turns ON/OFF the BIAS circuit and turns on the output SW and amplifier. When AP is H, the amplifier is set and the LCD is driving. The amplifier output and output SW are turned on at the rising edge of AP, starting the LCD drive. Note that the output SW is turned off at the rising edge of STB and the output becomes Hi-Z. For the AP input timing, refer to Switching Characteristics Waveform. When the -correction power supply is input externally, switch GAM to H. If two or more chips are used, be sure to input the -correction power supply externally. Figure 4-1 shows an input example of the -correction power supply. GAM = L: External -correction power supply not input (open) GAM = H: External -correction power supply input The output count can be selected. When Osel = H, the unused pins S1 to S18 and S379 to S396 always become Hi-Z. Osel = L: 396 outputs Osel = H: 360 outputs These pins input the -corrected power supplies from outside, the relationship below must be observed. Also, be sure to stabilize the gray-scale-level power supply during gray-scale voltage output. VSS2 V4 V3 V2 V1 V0 VDD2 This pin adjusts the BIAS current. Select either the high power mode or low power mode. BA = L: Low power mode BA = H: high power mode Set to H or leave open COM amplitude 428 output fixing signal
CM
8-color display mode switching
433
Input
AP
Output SW ON/OFF
435
Input
GAM
External usage selection
432
Input
Osel
Driver output count switching
430
Input
V0 to V4
-corrected power supplies
461 to 463, 457 to 459, 453 to 455, 449 to 451, 445 to 447
-
BA
BIAS current adjustment function TEST input pin TEST output pin Logic power supply Driver power supply Logic ground Driver ground
431
Input
TESTIN TESTO1, TESTO2 VDD1 VDD2 VSS1 VSS2
480 478, 479
416 to 418, 482 to 484 412 to 414, 494 to 496 420 to 422, 486 to 488 424 to 426, 490 to 492
Input
Output Leave open. - - - - - 2.2 to 3.6 V 4.5 to 5.5 V Ground Ground This pin is dummy.
Dummy1 to Dummy dummy40
397 to 408, 411, 415, 419, 423, 427, 444, 448, 452, 456, 460, 464, 481, 485, 489, 493, 487, 499 to 510
Caution
To avoid latchup failure, the sequence when turning on the power must be VDD1 logic input VDD2 gray-scale power supply (V0 to V4), and the reverse sequence when turning off the power. Follow this sequence during shift periods as well.
8
Data Sheet S15381EJ1V0DS
PD161602A/B
4. EXAMPLES OF EACH SINGAL INPUT OR OUTPUT
Examples of the input/output timing of each signal during white and black display are shown below. Figure 4-1. Timing Chart
STB
AP POL
DATA
DATA = 000000
DATA = 111111
VCOM
260,000-color display mode (CM = L)
Hi-Z
Hi-Z
Hi-Z
Hi-Z
OUT
Undefined
Black level
Black level
White level
White level
8-color display mode
OUT
Black level
LSB MSB
Black level
White level
White level
MSB used in 8-color display mode
Data Sheet S15381EJ1V0DS
9
PD161602A/B
4.1 -Correction Power Supply Connection Example The PD161602A/B enables customization of the -correction power supply on both the positive and negative polarity sides (refer to 6. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE). Consequently, a -correction power supply does not have to be input externally when a single source-driver chip is being used in the panel. Multiple chips can also be used without having to input a -correction power supply externally because the error between the chips can be absorbed by shorting the -correction power supply pins, as shown in Figure 4-2. Figure 4-2. -Correction Power-Supply Connection Example
*Single chip
Open
External power supply input
VDD2 VSS2
V0 V1 V2 V3 V4
VSS2 VDD2
mPD161602
External power supply input
External power supply input
VDD2 VSS2
V0 V1 V2 V3 V4
VSS2 VDD2
mPD161602
*Multiple chips
Vn - Vn short
External power supply input
VDD2 VSS2
V0 V1 V2 V3 V4
VSS2 VDD2
VDD2 VSS2
V0 V1 V2 V3 V4
VSS2 VDD2
mPD161602
External power supply input
mPD161602
External power supply input
VDD2 VSS2
V0 V1 V2 V3 V4
VSS2 VDD2
VDD2 VSS2
V0 V1 V2 V3 V4
VSS2 VDD2
mPD161602
mPD161602
10
Data Sheet S15381EJ1V0DS
PD161602A/B
4.2 AP Signal Timing The driver power consumption is dependent on the high period of the AP signal because the operational amplifier in the IC is operation and current is constantly flowing in this period. A chart indication the recommended timing of inputting the AP signal vis-a-vis the STB signal is shown below.
STB
AP
Hi-Z MIN. 10 s Amp driving 10 to 15 s SW driving
Note that the ideal AP signal high period differs depending on the load of the liquid crystal. The AP period must therefore be able to be adjusted using a controller. The AP signal can also be used as shown below. However, in these cases, be sure to perform sufficient evaluation before use. Only the amp is driven (SW drive is not used) if one horizontal period is short (40 s or less) or the liquid crystal load is large (50 pF or more).
STB
AP
The amp drive period is shortened and the SW drive period lengthened when one horizontal period is long (100 s or more) and the liquid crystal load is small (20 pF).
STB
AP
Data Sheet S15381EJ1V0DS
11
PD161602A/B
4.3 CLK Signal Input Input at least 4 clocks of the CLK signal after the rising of the STB signal.
STB
1 2 3 4 /1 2 3 4 5 6 7 8
CLK STH Invalid D0 to D3 D4 to D6 D7 to D9
D10 to D12 D13 to D15 D16 to D18 D19 to D21
Internal latch signal1 Note Internal latch signal2 Note Internal latch signal3 Note
Note Internal latch signal : It is the signal that do latch the display data put in data register in output latch circuit.
5. MODE EXPLANATION
Normal Mode/ 8-clor Display Mode
CM H H POL MSB = H MSB = L L MSB = H MSB = L L H All bit = H All bit = L L All bit = H All bit = L 260,000-color mode Data Driver Output Status 8-color mode Driver Output (in normally white) White level display Black level display White level display Black level display White level display Black level display White level display Black level display
12
Data Sheet S15381EJ1V0DS
PD161602A/B
6. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE
The relation between input data and output voltage are shown in Table 6-2, 6-3. Any 3 major points V1 to V3 from the LCD panel -characteristics curve can be used as the external power supplies. The relationship V0 to V4 external power supplies and -correction resistance is shown in Table 6-1, Figure 6-1. Table 6-1. Relationship between External Power Supply Pins and -correction Resistance
Pin Name V0 V1 V2 V3 V4 Voltage (V) 5.0 3.5 2.5 1.5 0 Resistance () 0 7,500 12,500 17,500 25,000
Figure 6-1. Relationship between External Power Supply Pins and -correction Resistance
VDD2
V0
7500
V1
5000
V2
5000
V3
7500
V4
VSS2
This external power supply pins (V0 to V4) can customize the -correction voltage by selecting the desired voltage from one of 250 divisions of the string resistor between VSS2 and VDD2, which generated -correction voltage. Note that the voltage can be selected individually for both positive and negative polarity.
Data Sheet S15381EJ1V0DS
13
PD161602A/B
Table 6-2. Relation of Input Data and Output Voltage in PD161602A -
Input Data 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 1AH 1BH 1CH 1DH 1EH 1FH Gray Scale 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Positive Polarity Side (V) Negative Polarity Side (V) Positive Polarity Side () Negative Polarity Side ()
Input Data 20H 21H 22H 23H 24H 25H 26H 27H 28H 29H 2AH 2BH 2CH 2DH 2EH 2FH 30H 31H 32H 33H 34H 35H 36H 37H 38H 39H 3AH 3BH 3CH 3DH 3EH 3FH
Gray Scale 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
Positive Polarity Side (V)
Negative Polarity Side (V)
Positive Polarity Side ()
Negative Polarity Side ()
5.000 4.920 4.760 4.540 4.280 3.960 3.840 3.740 3.640 3.540 3.480 3.400 3.320 3.240 3.160 3.100 3.060 3.000 2.960 2.900 2.860 2.820 2.780 2.740 2.700 2.680 2.640 2.620 2.600 2.560 2.540 2.500
0.000 0.080 0.260 0.480 0.760 1.080 1.200 1.300 1.400 1.520 1.580 1.660 1.740 1.840 1.920 2.000 2.060 2.100 2.160 2.220 2.280 2.320 2.360 2.400 2.440 2.480 2.520 2.560 2.580 2.620 2.660 2.700
0 400 1200 2300 3600 5200 5800 6300 6800 7300 7600 8000 8400 8800 9200 9500 9700 10000 10200 10500 10700 10900 11100 11300 11500 11600 11800 11900 12000 12200 12300 12500
25000 24600 23700 22600 21200 19600 19000 18500 18000 17400 17100 16700 16300 15800 15400 15000 14700 14500 14200 13900 13600 13400 13200 13000 12800 12600 12400 12200 12100 11900 11700 11500
2.480 2.460 2.420 2.400 2.360 2.340 2.300 2.280 2.240 2.220 2.180 2.160 2.140 2.120 2.080 2.060 2.040 2.020 1.980 1.960 1.920 1.900 1.860 1.840 1.780 1.740 1.680 1.620 1.520 1.360 1.180 0.400
2.720 2.760 2.800 2.820 2.860 2.900 2.940 2.960 3.000 3.040 3.080 3.100 3.140 3.180 3.200 3.240 3.260 3.300 3.340 3.360 3.400 3.440 3.480 3.520 3.580 3.620 3.680 3.760 3.860 4.040 4.220 5.000
12600 12700 12900 13000 13200 13300 13500 13600 13800 13900 14100 14200 14300 14400 14600 14700 14800 14900 15100 15200 15400 15500 15700 15800 16100 16300 16600 16900 17400 18200 19100 23000
11400 11200 11000 10900 10700 10500 10300 10200 10000 9800 9600 9500 9300 9100 9000 8800 8700 8500 8300 8200 8000 7800 7600 7400 7100 6900 6600 6200 5700 4800 3900 0
5.000
- curve
4.500 4.000 3.500 3.000 2.500
2.000
1.500
1.000 0.500
0.000 0 10 20 30 gray-scale 40 50 60
14
Data Sheet S15381EJ1V0DS
PD161602A/B
Table 6-3. Relation of Input Data and Output Voltage in PD161602B -
Input Data 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 1AH 1BH 1CH 1DH 1EH 1FH Gray Scale 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Positive Polarity Side (V) Negative Polarity Side (V) Positive Polarity Side () Negative Polarity Side ()
Input Data 20H 21H 22H 23H 24H 25H 26H 27H 28H 29H 2AH 2BH 2CH 2DH 2EH 2FH 30H 31H 32H 33H 34H 35H 36H 37H 38H 39H 3AH 3BH 3CH 3DH 3EH 3FH
Gray Scale 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
Positive Polarity Side (V)
Negative Polarity Side (V)
Positive Polarity Side ()
Negative Polarity Side ()
5.000 4.980 4.960 4.920 4.880 4.800 4.720 4.600 4.460 4.320 4.160 4.000 3.860 3.780 3.700 3.620 3.540 3.460 3.380 3.320 3.280 3.220 3.160 3.120 3.060 3.040 3.000 2.960 2.940 2.900 2.860 2.820
0.000 0.020 0.060 0.100 0.140 0.220 0.300 0.440 0.580 0.740 0.920 1.080 1.240 1.320 1.420 1.500 1.600 1.680 1.760 1.820 1.880 1.940 2.000 2.040 2.100 2.140 2.180 2.220 2.240 2.280 2.320 2.360
0 100 200 400 600 1000 1400 2000 2700 3400 4200 5000 5700 6100 6500 6900 7300 7700 8100 8400 8600 8900 9200 9400 9700 9800 10000 10200 10300 10500 10700 10900
25000 24900 24700 24500 24300 23900 23500 22800 22100 21300 20400 19600 18800 18400 17900 17500 17000 16600 16200 15900 15600 15300 15000 14800 14500 14300 14100 13900 13800 13600 13400 13200
2.780 2.760 2.720 2.680 2.660 2.620 2.600 2.560 2.520 2.480 2.460 2.400 2.360 2.340 2.300 2.260 2.220 2.180 2.140 2.100 2.040 2.000 1.960 1.900 1.840 1.780 1.700 1.580 1.460 1.260 1.080 0.400
2.400 2.440 2.480 2.520 2.540 2.580 2.620 2.660 2.700 2.740 2.780 2.820 2.860 2.900 2.940 2.980 3.020 3.060 3.100 3.160 3.220 3.260 3.320 3.380 3.420 3.520 3.600 3.720 3.840 4.060 4.280 5.000
11100 11200 11400 11600 11700 11900 12000 12200 12400 12600 12700 13000 13200 13300 13500 13700 13900 14100 14300 14500 14800 15000 15200 15500 15800 16100 16500 17100 17700 18700 19600 23000
13000 12800 12600 12400 12300 12100 11900 11700 11500 11300 11100 10900 10700 10500 10300 10100 9900 9700 9500 9200 8900 8700 8400 8100 7900 7400 7000 6400 5800 4700 3600 0
5.000
- curve
4.500 4.000 3.500 3.000 2.500
2.000
1.500
1.000 0.500
0.000 0 10 20 30 gray-scale 40 50 60
Data Sheet S15381EJ1V0DS
15
PD161602A/B
6.1 Connection between -correction Resistance, Power Supply, and GND Pin Connection of - compensation resistance power supply (V0-V4) and a power supply pin (VDD2 and VSS2) is indicated below to be - compensation resistance of PD161602 A/B. By setup of a GAM pin, as for -compensation resistance, connection changes the highest minimum potential between VDD2-VSS2 or among V0-V4. Figure 6-2. GAM Pin Function -
VDD2 SW1 V0
GAM
-selectionSW Positive Negative polarity polarity
GAM = L
SW1
SW2 V1
V2
GAM = H
V3 SW1
SW2 V4 SW2
GAM
VSS2
16
Data Sheet S15381EJ1V0DS
PD161602A/B
7. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT PIN
Data format: 6 bits x RGBs (3 dots) Input width: 18 bits (1-pixel data) R,/L = H (Right shift), Osel = L (396 outputs)
Output Data S1 D00 to D05 S2 D10 to D15 S3 D20 to D25 S4 D00 to D05 ... ... S395 D10 to D15 S396 D20 to D25
R,/L = L (Left shift), Osel = L (396 outputs)
Output Data S1 D00 to D05 S2 D10 to D15 S3 D20 to D25 S4 D00 to D05 ... ... S395 D10 to D15 S396 D20 to D25
Data Sheet S15381EJ1V0DS
17
PD161602A/B
8. ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings (TA = 25C, VSS1 = VSS2 = 0 V)
Parameter Logic Part Supply Voltage Driver Part Supply Voltage Input Voltage Output Voltage Operating Ambient Temperature Storage Temperature Symbol VDD1 VDD2 VI VO TA Tstg Rating -0.3 to +4.5 -0.3 to +6.0 -0.3 to VDD1,2 + 0.3 -0.3 to VDD1,2 + 0.3 -20 to +75 -55 to +125 Unit V V V V C C
Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded. Recommended Operating Range (TA = -20 to +75C, VSS1 = VSS2 = 0 V)
Parameter Logic Part Supply Voltage Driver Part Supply Voltage High-Level Input Voltage Low-Level Input Voltage Symbol VDD1 VDD2 VIH VIL V0 to V4 fCLK Condition MIN. 2.2 4.5 0.7 VDD1 0 VSS2 5.0 TYP. MAX. 3.6 5.5 VDD1 0.3 VDD1 VDD2 15 Unit V V V V V MHz
-Corrected Voltage
Clock Frequency
18
Data Sheet S15381EJ1V0DS
PD161602A/B
Electrical Characteristics (TA = -20 to +75C, VDD1 = 2.2 to 3.6 V, VDD2 = 5.0 V 0.5 V, VSS1 = VSS2 = 0 V)
Parameter Input Leak Current Symbol IIL Condition D00-D05, D10-D15, D20-D25, R,/L, STB, CLK, STHR(L), INV, CM, AP, Osel, BA, POL, GAM, VCsel Input Current High-Level Output Voltage Low-Level Output Voltage VCOM Output Voltage IIL2 VOH VOL VOH2 VOL2 TESTIN STHR (STHL), IOH = -1.0 mA STHR (STHL), IOL = +1.0 mA VDD2 = 5.0 V, IO = -1.0 mA VDD2 = 5.0 V, IO = +1.0 mA V0 = 5.0 V, V4 = 0 V (when in -correction power mode) IVOH1 VDD2 = 5.0 V, VOUT = VX - 1.0 V Input data: 1FH IVOL1 VDD2 = 5.0 V, VOUT = VX + 1.0 V Input data: 20H Driver Output Current (Switch drive) IVOL2 IVOH2 VDD2 = 5.0 V, VOUT = VX - 1.0 V Input data: 1FH VDD2 = 5.0 V, VOUT = VX + 1.0 V Input data: 20H Driver Output Current (8-color display mode) Output Voltage Deviation VOH3 VOL3 VO VDD2 = 5.0 V, IO = -50 uA VDD2 = 5.0 V, IO = +50 uA VDD1 = 2.5 V, VDD2 = 5.0 V, VOUT = 2.5 V Output Voltage Range VO
Note1 Note1 Note1 Note1 Note1
MIN.
TYP.
MAX. 1.0
Unit
A
10 VDD1 - 0.5
40
200
A
V
0.5 VDD2 - 0.5 0.5 100 200 400
V V V
-Correction Power-supply I
Static Current Consumption Driver Output Current (AMP drive)
A
-0.5
-0.15
mA
0.15
0.50
mA
-50
-15
A A
15
40
VDD2 - 0.5 0.5 10 20
V V mV
Input data: 00H to 3FH With no load
Note2
VSS2 + 0.05 0.4
Note2
VDD2 - 0.05 0.8
V mA
Logic Part Dynamic Current IDD1 Consumption Driver Part Dynamic Current Consumption IDD2
VDD = 5.0 V, with no load
0.9
1.5
mA
Notes 1. VX refers to the output voltage of analog output pins S1 to S396. VOUT refers to the voltage applied to analog output pins S1 to S396. 2. fCLK = 15 MHz, STB cycle = 60 s, AP pulse width = 15 s, BA = L (low power mode)
Data Sheet S15381EJ1V0DS
19
PD161602A/B
Switching Characteristics (TA = -20 to +75C, VDD1 = 2.2 to 3.6 V, VDD2 = 5.0 V 0.5 V, VSS1 = VSS2 = 0 V)
Parameter Start Pulse Delay Time Symbol tPLH1 tPHL1 Driver Output Delay Time (High power mode) Driver Output Delay Time (Low power mode) Input Capacitance tPLH2H tPHL2H tPLH2L tPHL2L CI1 CI2 CL = 30 pF AP VOUT - 100 mV or VOUT + 100 mV CL = 30 pF AP VOUT - 100 mV or VOUT + 100 mV V0 to V4, TA = 25C Excluded V0 to V4, TA = 25C 5 10 CL = 15 pF Condition MIN. TYP. MAX. 25 25 12 12 15 15 15 15 Unit ns ns
s s s s
pF pF
# Timing Requirements (TA = -20 to +75C, VDD1 = 2.2 to 3.6 V, VSS1 = 0 V, tr = tf = 10 ns)
Parameter Clock Pulse Width Clock Pulse High Period Clock Pulse Low Period Data Setup Time Data Hold Time Start Pulse Setup Time Start Pulse Hold Time Start Pulse Low Period Last Data Timing CLK-STB Time STB Pulse Width Start Pulse Rising Time INV Set-up Time INV Hold Time STB Set-up Time STB Hold Time POL-STB Time STB-POL Time CM-STB Time STB-CM Time STB-AP Time AP Pulse Width (High power mode) AP Pulse Width (Low power mode) Symbol PWCLK PWCLK(H) PWCLK(L) tSETUP1 tHOLD1 tSETUP2 tHOLD2 tSPL tLDT tCLK-STB PWSTB tSTB-STH tSETUP3 tHOLD3 tSETUP4 tHOLD4 tPOL-STB tSTB-POL tCM-STB tSTB-CM tSTB-AP PWAPH PWAPL STB cycle 40s, CL = 30 pF STB AP STB STH CLK STB Condition MIN. 65 20 20 20 20 20 20 3 2 20 40 3 20 20 20 20 0 40 0 40 20 12 15 TYP. MAX. Unit ns ns ns ns ns ns ns CLK CLK ns ns CLK ns ns ns ns ns ns ns ns
s s s
20
Data Sheet S15381EJ1V0DS
Switching Characteristic Waveform (R,/L= H, OSEL=L)
Unless otherwise specified, the input level is defined to be VIH = 0.7 VDD1, VIL = 0.3 VDD1.
PWCLK CLK
PWCLK(L) 1 2
PWCLK(H) 3 132 133 90%
tr
tf
tSETUP2 tHOLD2 tSPL STHR (1st Dr.) tSETUP1 DATA INVALID D1 to D3 tHOLD1
Last Data
10%
D4 to D6 tPLH1 tPHL1
INVALID
STHL (1st Dr.)
tLDT
tSETUP4
tHOLD4
PWSTB
Data Sheet S15381EJ1V0DS
tCLK-STB STB
tSTB-STH
tSETUP3 tHOLD3
INV tPOL-STB tSTB-POL POL tCM-STB tSTB-CM CM tSTB-AP PWAB AP
tPLH2
VOUT
Hi-Z
Hi-Z
PD161602A/B
tPHL2
21
PD161602A/B
[MEMO]
22
Data Sheet S15381EJ1V0DS
PD161602A/B
NOTES FOR CMOS DEVICES
1 PRECAUTION AGAINST ESD FOR SEMICONDUCTORS Note: Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it once, when it has occurred. Environmental control must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using insulators that easily build static electricity. Semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. All test and measurement tools including work bench and floor should be grounded. The operator should be grounded using wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need to be taken for PW boards with semiconductor devices on it. 2 HANDLING OF UNUSED INPUT PINS FOR CMOS Note: No connection for CMOS device inputs can be cause of malfunction. If no connection is provided to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each unused pin should be connected to VDD or GND with a resistor, if it is considered to have a possibility of being an output pin. All handling related to the unused pins must be judged device by device and related specifications governing the devices. 3 STATUS BEFORE INITIALIZATION OF MOS DEVICES Note: Power-on does not necessarily define initial status of MOS device. Production process of MOS does not define the initial operation status of the device. Immediately after the power source is turned ON, the devices with reset function have not yet been initialized. Hence, power-on does not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the reset signal is received. Reset operation must be executed immediately after power-on for devices having reset function.
Data Sheet S15381EJ1V0DS
23


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