user?s guide NHD-0216HZ-FL-GBW lcm (liquid crystal display module) rohs compliant for product support, contact newhaven display international, llc 2511 technology drive, #101 elgin, il 60124 tel: (847) 844-8795 fax: (847) 844-8796 october 4, 2007 newhaven display 2 lines x 16 characters version line transflective yellow/green led b/l stn-gray 6:00 view wide temperature ( -2 0 ~ +70c) nhd- 0216- h z- f- l- g - b- w-
specification of lcd module features 1. 5x8 dots with cursor 2. built - in controller (ks0066u or equivalent) 3. easy interface with 4 - bit or 8 - bit mpu 4. +5v power supply (also available for = 3.0v) 5. 1/16 duty cycle 6. n.v. optional 7. bkl to be driven by pin1, pin2, or pin15, pin16 or a, k outline dimension without bkl el bkl / or display pattern led backlight a k absolute maximum ratings item symbol standard unit power voltage v dd - v ss 0 - 7.0 input voltage vin vss - vdd v operating temperature range vop -20 - +70 storage temperature range vst -3 0 - +80 * wide temperature range is available (operating/storage temperature as ? 20~+70/ - 30~+80 ) unit: mm NHD-0216HZ-FL-GBW
nhd-0216hz newhaven display international, llc 2/9 block diagram interface pin description pin no. symbol external connection function 1 v ss signal ground for lcm (gnd) 2 v dd power supply for logic (+5v) for lcm 3 v 0 power supply contrast adjust 4 rs mpu register select signal 5 r/w mpu read/write select signal 6 e mpu operation (data read/write) enable signal 7~10 db0~db3 mpu four low order bi -directional three-state data bus lines. used for data transfer between the mpu and the lcm. these four are not used during 4 -bit operation. 11~14 db4~db7 mpu four high order bi -directional thre e-state data bus lines. used for data transfer between the mpu 15 led+ power supply for bkl ?a? (+4.2v) 16 led- led bkl power supply power supply for bkl ?k? (gnd) contrast adjust v dd~v 0: lcd driving voltage vr: 10k~20k
nhd-0216hz newhaven display international, llc 3/9 optical characteristics tn type display module (ta=25 , vdd=5.0v) item symbol condition min. typ. max. unit - 25 - - viewing angle cr 4 - 30 - 30 deg contrast ratio cr - 2 - - response time (rise) t r - - 120 150 response time (fall) t r - - 120 150 ms stn type display module (ta=25 , vdd=5.0v) item symbol condition min. typ. max. unit - 60 - 35 viewing angle cr 2 -40 - 40 deg contrast ratio cr - 6 - - response time (rise) t r - - 150 250 response time (fall) t r - - 150 250 ms electrical characteristics dc characteristics paramete r symbol conditions min. typ. max. unit supply voltage for lcd v dd- v 0 ta =25 - 4.6 - input voltage v dd 4.7 - 5.5 v supply current idd ta=25 , v dd=5.0v - 1.5 2.5 ma input leakage current ilkg - - 1.0 ua ?h? level input voltage v ih 2.2 - v dd ?l? level input voltage v il twice initial value or less 0 - 0.6 ?h? level output voltage v oh loh= -0.25ma 2.4 - - ?l? level output voltage v ol loh=1.6ma - - 0.4 backlight supply voltage v f - 4.2 4.6 v read cycle (ta=25 , vdd=5.0v) parameter symbol te st pin min. typ. max. unit enable cycle time tc 500 - - enable pulse width tw 300 - - enable rise/fall time tr, tf e - - 25 rs; r/w setup time tsu 100 - - rs; r/w address hold time th rs; r/w rs; r/w 10 - - read data output delay td 60 - 90 read data hold time tdh db0~db 7 20 - - ns write cycle (ta=25 , vdd=5.0v) parameter symbol test pin min. typ. max. unit enable cycle time tc 500 - - enable pulse width tw 300 - - enable rise/fall time tr, tf e - - 25 rs; r/w setup time tsu1 100 - - rs; r/w address hold time th1 rs; r/w rs; r/w 10 - - read data output delay tsu2 60 - - read data hold time th2 db0~db7 10 - - ns
nhd-0216hz newhaven display international, llc 4/9 write mode timing diagram read mode timing diagram instruction description outline to overcome the speed difference between the internal clock of ks0066u and the mpu clock, ks0066u performs internal operations by storing control in formations to ir or dr. the internal operation is determined according to the signal from mpu, composed of read/write and data bus (refer to table7). instructions can be divided largely into four groups: 1) ks0066u function set instructions (set display methods, set data length, etc.) 2) address set instructions to internal ram 3) data transfer instructions with internal ram 4) others the addre ss of the internal ram is automatically increased or decreased by 1. note: during internal operation, busy flag (db7) is read ?high?.
nhd-0216hz newhaven display international, llc 5/9 busy flag check must be preceded by the next instruction. instruction table instruction code instruction rs r/w db7 db6 db5 db4 db3 db2 db1 db0 description ex ecution time (fosc= 270 khz clear display 0 0 0 0 0 0 0 0 0 1 write ?20h? to ddra and set ddram address to ?00h? from ac 1.53ms return home 0 0 0 0 0 0 0 0 1 - set ddram address to ?00h? from ac and return cursor to its original position if shifted. the contents of ddram are not changed. 1.53ms entry mode set 0 0 0 0 0 0 0 1 i/d sh assign cursor moving direction and blinking of entire display 39us display on/ off control 0 0 0 0 0 0 1 d c b set display (d), cursor (c), and blinking of cursor (b) on/off control bit. cursor or display shift 0 0 0 0 0 1 s/c r/l - - set cursor moving and display shift control bit, and the direction, without changing of ddram data. 39us function set 0 0 0 0 1 dl n f - - set interface data length (dl: 8- bit/4-bit), numbers of display line (n: =2-line/1-line) and, display font type (f: 5x11/5x8) 39us set cgram address 0 0 0 1 ac5 ac4 ac3 ac2 ac1 ac0 set cgram address in address counter. 39us set ddram address 0 0 1 ac6 ac 5 ac4 ac3 ac2 ac1 ac0 set ddram address in address counter. 39us read busy flag and address 0 1 bf ac6 ac5 ac4 ac3 ac2 ac1 ac0 whether during internal operation or not can be known by reading bf. the contents of address counter can also be read. 0us w rite data to address 1 0 d7 d6 d5 d4 d3 d2 d1 d0 write data into internal ram (ddram/cgram). 43us read data from ram 1 1 d7 d6 d5 d4 d3 d2 d1 d0 read data from internal ram (ddram/cgram). 43us note: when an mpu program with checking the busy flag (db7 ) is made, it must be necessary 1/2fosc is necessary for executing the next instruction by the falling edge of the ?e? signal after the busy flag (db7) goes to ?low?. contents 1) clear display rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 0 0 0 0 0 1 clear all the display data by writing ?20h? (space code) to all ddram address, and set ddram address to ?00h? into ac (address counter). return cursor to the original status, namely, bring the cursor to the left edge on the fist line of the display. make th e entry mode increment (i/d=?high?).
nhd-0216hz newhaven display international, llc 6/9 2) return home rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 0 0 0 0 1 - return home is cursor return home instruction. set ddram address to ?00h? into the address counter. return cursor to its original site and return display to its original status, if shifted. contents of ddram does not change. 3) entry mode set rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 0 0 0 0 i/d sh set the moving direction of cursor and display. i/d: increment / decrement of ddram address (cursor or blink) when i/d=?high?, cursor/blink moves to right and ddram address is increased by 1. when i/d=?low?, cursor/blink moves to left and ddram address is increased by 1. *cgram operates the same way as ddram, when reading from or writing to cgram. sh: shift of entire display when ddram read (cgram read/write) operation or sh=?low?, shifting of entire display is not performed. if sh =?high? and ddram write operation, shift of entire display is performed according to i/d value. (i/d=?high?. shift left, i/d=?low?. shift right). 4) display on/off control rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 0 0 1 d c b control display/cursor/blink on/off 1 bit register. d: display on/off control bit when d=?high?, entire display is turned on. when d=?low?, display is turned off, but display data remains in ddram. c: cursor on/off control bit when d=?high?, cursor is turned on. when d=?low?, cursor is disappeared in current display, but i/d register preserves its data. b: cursor blink on/off contr ol bit when b=?high?, cursor blink is on, which performs alternately between all the ?high? data and display characters at the cursor position. when b=?low?, blink is off. 5) cursor or display shift rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 0 1 s/c r/l - -
nhd-0216hz newhaven display international, llc 7/9 shifting of right/left cursor position or display without writing or reading of display data. this instruction is used to correct or search display data. during 2- line mode display, cursor moves to the 2nd line after the 40th digit of the 1st line. note that display shift is performed simultaneously in all the lines. when display data is shifted repeatedly, each line is shifted individually. when display shift is performed, the contents of the address counter are not changed. shift patterns according to s/c and r/l bits s/c r/l operation 0 0 shift cursor to the left, ac is decreased by 1 0 1 shift cursor to the right, ac is increased by 1 1 0 shift all the display to the left, cursor moves according to the display 1 1 shift all the displa y to the right, cursor moves according to the display 6) function set rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 1 dl n f - - dl: interface data length control bit when dl=?high?, it means 8- bit bus mode with mpu. when dl=?low?, it means 4 - bit bus m ode with mpu. hence, dl is a signal to select 8 - bit or 4 - bit bus mode. when 4- but bus mode, it needs to transfer 4- bit data twice. n: display line number control bit when n=?low?, 1- line display mode is set. when n=?high?, 2- line display mode is set. f: display line number control bit when f=?low?, 5x8 dots format display mode is set. when f=?high?, 5x11 dots format display mode. 7) set cgram address rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 1 ac5 ac4 ac3 ac2 ac1 ac0 set cgram address to ac. the ins truction makes cgram data available from mpu. 8) set ddram address rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 1 ac6 ac5 ac4 ac3 ac2 ac1 ac0 set ddram address to ac. this instruction makes ddram data available form mpu. when 1 - line display mode (n=low), d dram address is form ?00h? to ?4fh?.in 2 - line display mode (n=high), ddram address in the 1st line form ?00h? to ?27h?, and ddram address in the 2nd line is
nhd-0216hz newhaven display international, llc 8/9 from ?40h? to ?67h?. 9) read busy flag & address rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 1 bf ac 6 ac5 ac4 ac3 ac2 ac1 ac0 this instruction shows whether ks0066u is in internal operation or not. if the resultant bf is ?high?, internal operation is in progress and should wait bf is to be low, which by then the nest instruction can be performed. in th is instruction you can also read the value of the address counter. 10) write data to ram rs r/w db7 db6 db5 db4 db3 db2 db1 db0 1 0 d7 d6 d5 d4 d3 d2 d1 d0 write binary 8- bit data to ddram/cgram. the selection of ram from ddram, and cgram, is set by the previous address set instruction (ddram address set, cgram address set). ram set instruction can also determine the ac direction to ram. after write operation. the address is automatically increased/decreased by 1, according to the entry mode. 11) read data from ram rs r/w db7 db6 db5 db4 db3 db2 db1 db0 1 1 d7 d6 d5 d4 d3 d2 d1 d0 read binary 8- bit data from ddram/cgram. the selection of ram is set by the previous address set instruction. if the address set instruction of ram is not performed before this instruction, the data that has been read first is invalid, as the direction of ac is not yet determined. if ram data is read several times without ram address instructions set before, read operation, the correct ram data can be obtained from the second. but the first data would be incorrect, as there is no time margin to transfer ram data. in case of ddram read operation, cursor shift instruction plays the same role as ddram address set instruction, it also transfers ram data to output data register. after read operation, address counter is automatically increased/decreased by 1 according to the entry mode. after cgram read operation, display shift may not be executed correctly. note: in case of ram write operation, ac is increased/decreased by 1 as in read operation. at this time, ac indicates next address position, but only the previous data can be read by the read instruction. display character address code: display position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ddram address 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f ddram address 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f
nhd-0216hz newhaven display international, llc 9/9 standard character pattern
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