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nhd - c 0 2 20 biz - fs(rgb) - fbw - 3vm cog (chip - on - glass) character liquid crystal display module nhd - newhaven display c 02 20 - cog , 2 l ines x 20 c haracters biz - model, i 2 c i nterface f - transflective s(rgb) - side led b acklights C red, green, and blue f - f stn , positive b - 6:00 optimal v iew w - wide temp erature 3v - 3.3v lcd m - mounting h oles rohs compliant newhaven display international, inc. 2511 technology drive, suite 101 elgin il, 60124 ph: 847 - 844 - 8795 fax: 847 - 844 - 8796 www.newhavendisplay.com nhtech@newhavendisplay.com nhsales@newhavendisplay.com
[ 2 ] document revision history revision date descr iption changed by 0 7 / 8 / 0 9 initial release cl 1 7/10/ 09 mechanical drawing updated be 2 9/8/ 09 backlight supply current be 3 10/9/ 09 updated electrical characteristics mc 4 12/9/ 09 updated backlight power supply and current mc 5 5/27/ 11 display chara cter address code updated ak 6 6/13/ 11 electrical characteristics updated ak 7 6/23 / 14 mechanical, electrical & optical characteristics updated ml 8 5/24/17 mechanical, electrical characteristics updated sb 9 3/20/18 mechanical drawing updated sb functions and features ? 2 lines x 20 chara cters ? built - in st70 3 6 i controller with i 2 c interface ? 3.3 v power supply ? 1/ 1 6 duty, 1/ 5 bias ? built - in dc supply for vlcd (requires 2 external capacitors)
c b a d e f c b a d e f 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 checked by: drawn date: dr awing/part nu mber: standard t oleran ces (unless otherwise specified) unless otherwise s pe cified nhd-c0220biz-fs(rgb)-fbw-3vm revision: size: scale: drawn by: checked date: this drawing is solely the property of newhaven display international, inc. the information it contains is not to be disclosed, reproduced or copied in whole or part without written approval from ne whaven display. symbol revision date approved by: approved date: --------- --- co m 9 co m 16 s1 s 100 co m8 co m1 1 8 4 6 5 rs t 1 3 2 no scl sda vss vdd vo ut 8 c1+ c1- 7 pin assignment notes: 1. driver: 1/16 duty, 1/5 bias 2. voltage: 3.3v vdd, 5.5v vlcd 3. display mode: fstn positve / trans?ectve 4. optmal view: 6:00 5. backlight: rgb leds 6. driver ic: st7036i iic interface a rk bk gk 03/20/18 ns do not scale dr awing s. baxi 03/20/18 03/20/18 t. tung sh ee t 1 of 1 - t hi rd angle projec tion linear: xx. xx.x xx.xx 1.0 a3 s. baxi 0.3 mm 0.3 mm 0.3 mm - dimensions are in millimeters
[ 4 ] pin description and wiring diagram pin no. symbol external connection function descriptio n 1 rst mpu active low reset signal 2 scl mpu serial clock signal (requires pull - up resistor) 3 sda mpu serial data signal (requires pull - up resistor) 4 v ss power supply ground 5 v dd power supply supply voltage for l ogic (+3.3v) 6 v out cap c onnect 1 f cap to v ss or vdd 7 c1+ cap connect 0. 47 - 2.2 f cap to pin8 8 c1 - cap connect 0 .47 - 2.2 f cap to pin7 recommended lcd connector : n/a , solder directly in to pcb backlight connector: 3.0mm pitch pins, solder directly into pcb mates with : - -- capacita nce 0. 47 f~ 2.2 f ; recommended value = 1 f recommended resistor: 10k
[ 5 ] electrical characteristics item symbol condition min. typ. max. unit operating temperature range t op absolute max - 20 - +70 ? c storage temperature range t st absolute max - 3 0 - +80 ? c supply voltage v dd - 3.0 3.3 3.6 v supply current i dd v dd = 3.3v t op = 25c 0.2 0.5 1.5 ma supply for lcd (contrast) v lcd 5.3 5.5 5.7 v h level input v ih - 0.7 * v dd - v dd v l level input v il - v ss - 0.8 v h level output v oh - 0. 7 * v dd - v dd v l level output v ol - v ss - 0.8 v backlight supply current C red i r - - 20 30 ma backlight supply voltage C red v r i r = 20ma 1.7 1.9 2.1 v backlight supply current C green i g - - 30 40 ma backlight supply voltage C green v g i g = 30ma 2.7 2.9 3.1 v backlight supply current C blue i b - - 30 40 ma backlight supply voltage C blue v b i b = 30ma 2.7 2.9 3.1 v * the led of the backlight is driven by current ; d rive voltage is for reference only. drive voltage must be selected to ensure backlight current drain is below max level stated. optical characteristics item symbol condition min. typ. max. unit optimal viewing angles top ? y+ cr 2 - 40 - bottom ? y - - 60 - left x - - 60 - right x+ - 60 - contrast ratio cr - 2 5 - - response time rise t r t op = 25c - 150 250 ms fall t f - 200 300 ms controller information built - in st70 3 6 i controller. please d ownl oad specification at http://www.newhavendisplay.com/app_notes/st7036.pdf ddram address 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53
[ 6 ] slave address = 0x78
[ 7 ] table of commands
[ 8 ]
[ 9 ] timing characteristics
[ 10 ] built - in font table (opr1 = 0, opr2 = 0)
[ 11 ] example initialization program /**************************************************** * initialization for st7036i * *****************************************************/ void init_lcd() { i2c_start(); i2c_out(slave);//slave=0x78 i2c_out(comsend);//comsend = 0x 00 i2c_out(0x38); delay(10); i2c_out(0x39); delay(10); i2c_out(0x14); i2c_out(0x78); i2c_out(0x5e); i2c_out(0x6d); i2c_out(0x0c); i2c_out(0x01); i2c_out(0x06); delay(10); i2c_stop(); } /*****************************************************/ /*********** ***************************************** * output command or data via i2c * *****************************************************/ void i2c_out(unsigned char j) //i2c output { int n; unsigned char d; d=j; for(n=0;n<8;n++){ if( (d&0x80)==0x80) sda=1; else sda=0; d=(d<<1); scl = 0; scl = 1; scl = 0; } scl = 1; while(sda==1){ scl=0; scl=1; } scl=0; } /*****************************************************/
[ 12 ] /********************************************* ******* * i2c start * *****************************************************/ void i2c_start(void) { scl=1; sda=1; sda=0; scl=0; } /*****************************************************/ /*********************** ***************************** * i2c stop * *****************************************************/ void i2c_stop(void) { sda=0; scl=0; scl=1; sda=1; } /*****************************************************/ /** ************************************************** * send string of ascii data to lcd * *****************************************************/ void show(unsigned char *text) { int n,d; d=0x00; i2c_start(); i2c_out(slave); //slave=0x78 i2c_out(datasend);//datasend=0x40 for(n=0;n<20;n++){ i2c_out(*text); ++text; } i2c_stop(); } /*****************************************************/ /*****************************************************/ /**************************************** *************/
[ 13 ] quality information test item content of test test condition note high temperature storage endurance test applying the high storage temperature for a long time. +80 ? c , 96 hrs 2 low temperature storage endurance test applying the low storage temperature for a long time. - 30 ? c , 96 hrs 1,2 high temperature operation endurance test applying the electric stress (voltage & current) and the high thermal stress for a long time. + 7 0 ? c , 96 hrs 2 low temperature operation endurance test ap plying the electric stress (voltage & current) and the low thermal stress for a long time. - 20 ? c , 96 hrs 1 ,2 high temperature / humidity operation endurance test applying the electric stress (voltage & current) and the high thermal with high humidity stre ss for a long time. + 6 0 ? c , 90% rh , 96 hrs 1,2 thermal shock resistance endurance test applying the electric stress (voltage & current) during a cycle of low and high thermal stress. - 20 ? c ,30min - > 25?c,5min - > 7 0?c,30min = 1 cycle 10 cycles vibration test endurance test applying vibration to simulate transportation and use. 10 - 55hz , 15mm amplitude. 60 sec in each of 3 directions x,y,z for 15 minutes 3 static electricity test endurance test applying electric static discharge. vs=800v, rs=1.5k , cs=10 0pf one time note 1: no condensation to be observed. note 2: conducted after 4 hours of storage at 25 ? c, 0%rh. note 3: test performed on product itself, not inside a container. precautions for using lcds/lcms see precautions at www.newhavendisplay.com/specs/precautions.pdf warranty information see terms & conditions at http://www.newhavendisplay.com/index.php?ma in_page=terms

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