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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 1 2109876543212109876543210987654321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74AVC164245
16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Product Features
* PI74AVC164245 is designed for low voltage operation: 1.8V - 2.5V to 3.3V * Industrial operation at -40C to +85C * Packages available: - 48-pin plastic 300 mil SSOP (V) - 48-pin plastic 240 mil TSSOP (A) - 48-pin plastic 173 mil TVSOP (K)
Product Description
Pericom Semiconductor's AVC series of logic circuits are produced using the Company's advanced 0.35 micron CMOS technology, achieving industry leading performance. Pericom Semiconductor's PI74AVC164245, a 16-bit (dual-octal) noninverting bus transceiver, contains two separate supply rails: B port (VCCB), set at 3.3V, and A port (VCCA), set to operate at 1.8-2.5V. This arrangement permits translation from a 1.8-2.5V to 3.3V environment and vice versa. The PI74AVC164245 is designed for asynchronous communication between data buses.
Truth Table (each 8-bit section)
Inputs OE L L H DIR L H X Ope ration B data to A bus A data to B bus Isolation
To ensure the high impedance state during power up or power down, the output-enable (OE) input should be tied to VCC through a pullup resistor: the minimum value of the resistor is determined by the current-sinking capability of the driver.
Logic Block Diagram
Product Pin Configuration
(LVTTL)1DIR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 1OE(LVTTL) 1A1 1A2 GND 1A3 1A4 VCCA(1.8V-2.5V) 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCCA(1.8V-2.5V) 2A5 2A6 GND 2A7 2A8 2OE(LVTTL)
1DIR
1 48 47 2 1OE
1B1 1B2 GND 1B3 1B4 (3.3V)VCCB 1B5
1A1
1B1
1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 (3.3V)VCCB 2B5
To Seven Other Channels 2DIR 24 25 36 13 2OE
48-Pin A, K, V
38 37 36 35 34 33 32 31 30 29 28 27 26 25
2A1
2B1
2B6 GND 2B7
To Seven Other Channels
2B8 (LVTTL)2DIR
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PS8425D
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Maximum Ratings
(Absolute maximum ratings over operating free-air temperature range from VCCB at 3.3V & VCCA at 1.5 - 2.5V, unless otherwise noted) Supply voltage range: VCCA .................................. -0.5V to 3.8V VCCB .................................. -0.5V to 4.6V Input Voltage Range, VI Except I/O ports(1) ......-0.5V to 4.6V I/O port A(2) ... -0.5V to VCCA+0.5V I/O port B(1) .... -0.5V to VCCB+0.5V Input clamp current, IIK (VI <0) .................................... -50mA Output clamp current, IOK (VO <0) .............................. -50mA Continuous output current, IO ............................................... 50mA Continuous current through each VCC or GND ...........100mA Package thermal impedance, 0JA(3): A package .......... 89C/W K package ............................ 58C/W V package ............................ 94C/W Storage temperature range, TSTG ........................... -65C to 150C
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operating Conditions for VCCB at 3.3V(4)
M in. VC C B VIH VIL VIB VO B IO H IO L t/v TA Supply voltage High- level voltage Low- level voltage Input Voltage Output Voltage High- level output current Low- level output current Input transition rise or fall rate Operating free- air temperature -40 0 0 3.0 2 0.8 VC C B VC C B -12 12 10 85 mA ns/V C V M a x. 3.6 Units
Notes: 1. This value is limited to 4.6V maximum. 2. This value is limited to 3.8V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51. 4. To ensure proper device operation, all unused device inputs must be held at the associated VCC or GND.
Recommended Operating Conditions for VCCA at 2.5V(4)
M in. VC C A VIH VIL VIA VO A IO H IO L t/v TA Supply voltage High- level voltage Low- level voltage Input voltage Output voltage High- level output current Low- level output current Input transition rise or fall rate Operating free- air temperature
2
M a x. 2.7 0.7
Units
2.3 VC C A = 2.3V to 2.7V VC C A = 2.3V to 2.7V 0 0 VC C A = 2.3V VC C A = 2.7V VC C A = 2.3V VC C A = 2.7V -40 1. 7
V
VC C A VC C A -8 -12 8 12 10 85
PS8425D
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ns/V C
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Recommended Operating Conditions for VCCA at 1.8V(4)
M in. VCCA VIH VIL VIB VOA IOH IOL t/v TA Supply voltage High- level voltage Low- level voltage Input voltage Output voltage High- level output current Low- level output current Input transition rise or fall rate Operating free- air temperature -40 VCCA = 1.65V VCCA = 1.95V VCCA = 1.65V VCCA = 1.95V VCCA = 1.65V to 1.95V VCCA = 1.65V to 1.95V 0 0 1.65 0.65 x VCCA 0.35 x VCCA VCCA VCCA -4 -8 4 8 10 85 ns/V C mA V M a x. 1.95 Units
Notes: 1. Value limited to 4.6V maximum. 2. Value limited to 3.8V maximum. 3. Package thermal impedance is calculated in accordance with JESD 51. 4.To ensure proper device operation, all unused device inputs must be held at the associated VCC or GND.
Electrical Characteristics (VCCB) (Over recommended operating free-air temperature range for VCCB = 3.3V)
Parame te rs IOH = -100A VOH (A to B) IOH = -12mA Te s t Conditions VCCB 3.0V 3.6V 3.0V 3.6V 3.0V 3.6V 3.0V 3.6V 3.6V 3.6V 3.6V 3.0V to 3.6V 3.3V 3.3V 4.5 6.5 M in. 2.8 3.4 2.2 2.8 0.2 0.2 0.5 0.5 5 10 20 500 pF A V Typ. M ax. Units
IOL = 100A VOL (A to B) IOL = 12mA II IOZ ICC ICC* CI CIO Control Inputs VI = VCCB or GND A or B ports VO = VCCB or GND VI = VCCB or GND, IO = 0 One input at VCCB -0.6V, Other inputs at VCCB or GND Control Inputs VI = VCCB or GND A or B ports VO = VCCB or GND
Notes: Typical values are measured at VCC = 3.3V, TA = 25C For I/O ports, the parameter IOZ includes the input leakage current. * This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than at 0 or the associated VCC.
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Electrical Characteristics (VCCA) (Over recommended operating free-air temperature range for VCCA = 2.5V)
Parame te rs IOH = -100A VOH (B to A) IOH = -8mA IOH = -12mA IOL = 100A VOL (B to A) IOL = 8mA IOL = 12mA II IOZ ICC ICC* CI CIO Control Inputs VI = VCCA or GND A or B ports VO = VCCA or GND VI = VCCA or GND, IO = 0 One input at VCCA -0.6V, Other inputs at VCCA or GND Control Inputs VI = VCCA or GND A or B ports VO = VCCA or GND Te s t Conditions VCCA 2.3V to 2.7V 2.3V 2.7V 2.7V 2.3V to 2.7V 2.3V 2.7V 2.7V 2.7V 2.7V 2.3V to 2.7V 2.5V 2.5V 4.5 6.5 M in. VCC- 0.1 1.7 2.0 1. 8 0.2 0.4 0.5 5 10 30 500 pF A V Typ. M ax. Units
Electrical Characteristics (VCCA) (Over recommended operating free-air temperature range for VCCA = 1.8V)
Parame te rs IOH = -100A VOH (B to A) IOH = -4mA IOH = -8mA IOL = 100A VOL (B to A) IOL = 4mA IOL = 8mA IOZ*** A or B ports ICC ICC* CI CIO Control Inputs A or B ports VO = VCCA or GND VI = VCCA or GND, IO = 0 One input at VCCA -0.6V, Other inputs at VCCA or GND VI = VCCA or GND VO = VCCA or GND Te s t Conditions VCCA M in. Typ.** M ax. Units 1.65V to 1.95V VCC -0.1 1.65V 1.95V 1.95V 1.65V 1.95V 1.95V 1.95V 1.95V 1.65V to 1.95V 1.8V 1.8V 4.5 6.5 1.3 1.4 1.3 0.2 0.3 0.4 5 20 300 pF V
Notes: * The increase in supply current for each input at one of the specified TTL voltage levels rather than at the associated VCC. ** Typical values are measured at VCC = 2.5V or 1.8V, TA = 25C *** For I/O ports, the parameter IOZ includes the input leakage current.
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Switching Characteristics
(Over recommended operating free-air temperature range, CL = 30pF (unless otherwise noted), see Figures 1, 2, 3
PI74AVC164245 VCCB = 3.3V 0.3V From (Input) A B OE OE OE OE To (Output) B A B B A A VCCA = 1.8V 0.15V M in. 1.5 1.5 1.7 1.5 1.7 2 .0 M a x. 4.6 4.4 5.5 5.5 5.5 5.5 VCCA = 2.5V 0.2V M in. 1.5 1.5 1.7 1.5 1.7 2.0 M a x. 4.2 4.0 4.5 4.5 4.5 4.5 0.5 0.3
PI74AVC164245A VCCB = 3.3V 0.3V VCCA = 1.8V 0.15V M in. M a x. VCCA = 2.5V 0.2V M in. 1.0 1.0 1.2 1.0 1.2 1.5 M a x. 3.0 2.8 3.5 3.5 3.5 3.5 0.3 0.25 ns Units
Parame te r tPD tEN tDIS tEN tDIS tsk(o)(1) tsk(b)(1)
1.5 1.5 1.7 1.5 1.7 2.0
3.5 3.5
4.5 4.5 4.5 4.5
Note: 1. This is the skew between any two outputs of the same package, and switching in the same direction. For tsk(o), Output 1 and Output 2 are any two outputs. For tsk(b), Output 1 and Output 2 are in the same bank. These parameters are warrented but not production tested.
Operating Characteristics, TA = 25C
Te s t Conditions Outputs Enabled (A or B) Outputs Disabled CL = 30pF, F = 10 MHz VCCA = 2.5V VCCB = 3.3V Typical 56 6 Units pF
Parame te rs CP D Power Dissipation Capacitance
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Parameter Measurement Information, VCCA = 1.5V 0.10V
From Output Under Test CL = 30pF (see note A)
VIN
1000
2 x VCC Open GND
Te s t tPD tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
1000
Load Circuit
Output Control (low-level enabling) 3.0V Input 1.5V 1.5V 0V tPLH Output 0.9V tPHL VOH 0.9V VOL Output Waveform 2 S1 at GND (see note B) tPZH tPHZ 0.9V Output tPZL Waveform 1 S1 at 6V (see note B) 3.0V 1.5V 1.5V tPLZ 0.9V 0V 1.8V
VOL+0.15V VOL VOH VOH -0.15V 0V
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 1. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR 10Mz, ZO = 50, tR 2.5ns, tF 2.5ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tDIS. F. tPZL and tPZH are the same as tEN. G. tPLH and tPHL are the same as tPD.
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PS8425D
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Parameter Measurement Information, VCCA = 2.5V 0.2V
From Output Under Test CL = 30pF (see note A)
VIN
500
2 x VCC Open GND
Te s t tPD tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
500
Load Circuit
Output Control (low-level enabling) 3.0V Input 1.5V 1.5V 0V tPLH Output 1.25V tPHL VOH 1.25V VOL Output Waveform 2 S1 at GND (see note B) tPZH tPHZ 1.25V VOH VOH -0.2V 0V Output tPZL Waveform 1 S1 at 6V (see note B) 3.0V 1.5V 1.5V tPLZ 1.25V 0V 2.5V VOL+0.2V VOL
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 2. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR 10Mz, ZO = 50, tR 2.5ns, tF 2.5ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tDIS. F. tPZL and tPZH are the same as tEN. G. tPLH and tPHL are the same as tPD.
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PS8425D
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
Parameter Measurement Information, VCCB = 3.3V 0.3V
From Output Under Test CL = 30pF (see note A)
VIN
500
S1
6V Open GND
Te s t tPD tPLZ/tPZL tPHZ/tPZH
S1 Open 6V GND
500
Load Circuit
Output Control (low-level enabling) VCCA Output tPZL Waveform 1 S1 2 x VCCB (see note B) tPZH VOH Output Waveform 2 S1 at GND (see note B)
3V 1.5V 1.5V tPLZ 1.5V tPHZ 1.5V 0V 3V VOL+0.3V VOL VOH VOH -0.3V 0V
Input
VCCA/2
VCCA/2 0V tPHL
tPLH Output 1.5V
1.5V VOL
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 3. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR 10Mz, ZO = 50, tR 2.5ns, tF 2.5ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tDIS. F. tPZL and tPZH are the same as tEN. G. tPLH and tPHL are the same as tPD.
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PS8425D
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
48-Pin TSSOP (A) Package
48
.236 .244
6.0 6.2
1
.488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE
.004 0.09 .008 0.20 0.45 .018 0.75 .030 .319 BSC 8.1
X.XX X.XX
DENOTES DIMENSIONS IN MILLIMETERS
.0197 BSC 0.50
.007 .010 0.17 0.27
.002 .006 0.05 0.15
48-Pin SSOP (V) Package
48
.291 .299 7.39 7.59
.395 .420 10.03 10.67
Gauge Plane .010 0.25 1 .620 .630 15.75 16.00 .02 0.51 .04 1.01
.008 0.20 Nom.
.015 0.381 x 45 .025 0.635
.110 2.79 Max .025 BSC 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .008 0.20 .0135 0.34
0-8
.008 0.20 .016 0.40
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PS8425D
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PI74AVC164245 16-Bit 1.8-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs
48-Pin TVSOP (K) Package
48
.169 .177
4.30 4.50 .0035 .008 0.09 0.20
1
.378 9.60 .386 9.80
.031 .041 0.80 1.05
0.45 .018 0.75 .030 .252 BSC 6.4 SEATING PLANE
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
.016 BSC 0.40
.0051 .009 0.13 0.23
.002 .006 0.05 0.15
Max. .047 1.20
Ordering Information
Orde ring Data Blank Spe e d PI74AVC164245V PI74AVC164245A PI74AVC164245K A Spe e d PI74AVC164245AV PI74AVC164245AA PI74AVC164245AK De s cription 48- pin, 300- mil wide plastic SSOP 48- pin, 240- mil wide plastic TSSOP 48- pin, 173- mil wide plastic TVSOP
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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PS8425D 04/05/02

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