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[1] ? ? ? ? ? nhd \ 0212wh \ ayyh \ jt# ? character ? liquid ? crystal ? display ? module ? ? nhd \? ? newhaven ? display ? 0212 \? ? 2 ? lines ? x ? 12 ? characters ? wh \? ? display ? type: ? character ? a \? ? model ?? y \? ? yellow/green ? led ? backlight ? y \? ? stn \? yellow/green ? h \? ? transflective, ? 6:00 ? view, ? wide ? temp. ? ( \ 20c~+70c) ?? jt# \? ? english/japanese ? standard ? font ? ?? 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 ? description ? changed ? by ? 0 ? 10/21/2008 ? initial ? release ?\? 1 ? 10/8/2009 ? user ? guide ? reformat ? be ? 2 ? 10/23/2009 ? block ? diagram ? revision ? be ? 3 ? 1/5/2010 ? optical ? revised ? be ? ? ? ? ? ? functions ? and ? features ? ? 2 ? lines ? x ? 12 ? characters ? ? built \ in ? controller ? (st7066 ? or ? equivalent) ? ? +5.0v ? power ? supply ? ? 1/16 ? duty, ? 1/5 ? bias ? ? rohs ? compliant ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
2.65 5.50 3.20 6.20 8.93 10.15 37.85(aa) 46.0(va) 4.85 46.7 4.5 51.3 2.2 55.7 0.5 11.7(aa) 8.75 14.5(va) 17.5 7.25 24.7 3.65 32.0 0.5 17.78 18.96 12.25 31.2 9.0 11.5 30.0 1.0 1.5 3.0 1.5 1.6 5.1 9.7max (p1.27*14) 1 15 15- 0.7pth 15- 1.0pad 1.0 4- 1.0pth 4-r1.25 mpu 80 series rs r/w e db0~db7 or 68 series controller/com driver hd44780 12x2 lcd com1~16 seg1~40 d seg driver m cl1 cl2 or equivalent seg41~60 vdd,vss,v1~v5 bias and power circuit vdd vo vss vr 10k~20k led b/l drive method 1.drive from a,k b/l r a k 2.drive from pin15,vss b/l r r a k lcm 3.drive from vdd,vss lcm r a k b/l (contrast performance may go down.) recommanded value v led = 4.5v, i led = 40ma r = 20 ? (1/2 watt) the non-specified tolerance of dimension is 0.3mm. external contrast adjustment. db4 12 14 13 db6 db5 vss1 e 7 11 10 8 9 db3 db2 db1 db0 4 6 5 3 2 r/w rs vo vdd dot size led or no b/l db7 a15 0.45 0.55 0.60 0.70 mechanical drawing part no. date newhaven display nhd- 0212 wh-ayyh-jt# 10/8/2009
[4] ? ? pin ? description ? and ? wiring ? diagram ? pin ? no. ? symbol ? external ? connection ? function ? description 1 ? vss ? power ? supply ? ground 2 ? vdd ?? power ? supply ? supply ? voltage ? for ? logic ? (+5.0v) 3 ? v0 ? adj ? power ? supply ? power ? supply ? for ? contrast ? (approx. ? 0.8v) 4 ? rs ? mpu ? register ? select ? signal. ? rs=0: ? command, rs=1: ? data ? 5 ? r/w ? mpu ? read/write ? select ? signal, ? r/w=1: ? read r/w: ? =0: ? write ? ? 6 ? e ? mpu ? operation ? enable ? signal. falling ? edge ? triggered. ? 7 \ 10 ? db0 ? ? db3 ? mpu ? four ? low ? order ? bi \ directional ? three \ state ? data ? bus ? lines. ?? these ? four ? are ? not ? used ? during ? 4 \ bit ? operation. ? 11 \ 14 ? db4 ? ? db7 ? mpu ? four ? high ? order ? bi \ directional ? three \ state ? data ? bus ? lines. ?? 15 ? a ? power ? supply ? power ? supply ? for ? led ? backlight ? (+4.2v) ? recommended ? lcd ? connector: ? 1.27mm ? pitch ? pins ? backlight ? connector: ??\\\?????????? mates ? with: ?? ?\\\ ? ? ? ? ? ?
[5] ? ? ? ? electrical ? characteristics ??? item ? symbol ? condition min. typ. max. ? unit operating ? temperature ? range ? top ? absolute ? max \ 20 \ +70 ?? c storage ? temperature ? range ? tst ? absolute ? max \ 30 \ +80 ?? c supply ? voltage ? vdd ? 4.5 5.0 5.5 ? v supply ? current ? idd ? ta=25c, ? vdd=5.0v \ 1.2 \? ma supply ? for ? lcd ? (contrast) ? vdd \ v0 ? ta=25c ? 3.5 4.2 5.7 ? v ?h? ? level ? input ? vih ? 0.7vdd \ vdd ? v ?l? ? level ? input ? vil ? 0 \ 0.6 ? v ?h? ? level ? output ? voh ? 3.9 \\? v ?l? ? level ? output ? vol ?\\ 0.4 ? v ?? ? backlight ? supply ? voltage ? vled ?\ 4.0 4.2 4.4 ? v backlight ? supply ? current ?? iled ? vled=4.2v 32 40 60 ? ma backlight ? lifetime ?\? iled=40ma \ 100,000 \? hrs ? ? optical ? characteristics ? item ? symbol ? condition min. typ. max. ? unit viewing ? angle ? ? vertical ? (top) ? av ? cr ? 2 \ 25 \? ?? viewing ? angle ? ? vertical ? (bottom) ? av ? cr ? 2 \ 70 \? ?? viewing ? angle ? ? horizontal ? (left) ? ah ? cr ? 2 \ 30 \? ?? viewing ? angle ? ? horizontal ? (right) ? ah ? cr ? 2 \ 30 \? ?? contrast ? ratio ? cr ?\ 2 \? \? response ? time ? (rise) ? tr ?\ \ 120 150 ? ms response ? time ? (fall) ? tf ?\ \ 120 150 ? ms ? ? ? ? ? controller ? information ? built \ in ? st7066. ? download ? specification ? at ? http://www.newhavendispla y.com/app_notes/st7066.pdf ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
[6] ? ? ? table ? of ? commands ? ?
[7] ? ? ? ? timing ? characteristics ? ? ? ? writing ? data ? from ? mpu ? to ? st7066 ? ? ?
[8] ? ? ? ? ? ? ? ? ? reading ? data ? from ? st7066 ? to ? mpu ? ? ? ? ? ? ? ? ? ?
[9] ? ? built \ in ? font ? table ? ? ? ? ? ? ? ?
[10] ? ? ? ? example ? initialization ? program ? 8-bit initialization: /**********************************************************/ void command(char i) { p1 = i; //put data on output port d_i =0; //d/i=low : send instruction r_w =0; //r/w=low : write e = 1; delay(1); //enable pulse width >= 300ns e = 0; //clock enable: falling edge } /**********************************************************/ void write(char i) { p1 = i; //put data on output port d_i =1; //d/i=low : send data r_w =0; //r/w=low : write e = 1; delay(1); //enable pulse width >= 300ns e = 0; //clock enable: falling edge } /**********************************************************/ void init() { e = 0; delay(100); //wait >15 msec after power is applied command(0x30); //command 0x30 = wake up delay(30); //must wait 5ms, busy flag not available command(0x30); //command 0x30 = wake up #2 delay(10); //must wait 160us, busy flag not available command(0x30); //command 0x30 = wake up #3 delay(10); //must wait 160us, busy flag not available command(0x38); //function set: 8-bit/2-line command(0x10); //set cursor command(0x0c); //display on; cursor on command(0x06); //entry mode set } /**********************************************************/
[11] ? ? 4-bit initialization: /**********************************************************/ void command(char i) { p1 = i; //put data on output port d_i =0; //d/i=low : send instruction r_w =0; //r/w=low : write nybble(); //send lower 4 bits i = i<<4; //shift over by 4 bits p1 = i; //put data on output port nybble(); //send upper 4 bits } /**********************************************************/ void write(char i) { p1 = i; //put data on output port d_i =1; //d/i=high : send data r_w =0; //r/w=low : write nybble(); //clock lower 4 bits i = i<<4; //shift over by 4 bits p1 = i; //put data on output port nybble(); //clock upper 4 bits } /**********************************************************/ void nybble() { e = 1; delay(1); //enable pulse width >= 300ns e = 0; //clock enable: falling edge } /**********************************************************/ void init() { p1 = 0; p3 = 0; delay(100); //wait >15 msec after power is applied p1 = 0x30; //put 0x30 on the output port delay(30); //must wait 5ms, busy flag not available nybble(); //command 0x30 = wake up delay(10); //must wait 160us, busy flag not available nybble(); //command 0x30 = wake up #2 delay(10); //must wait 160us, busy flag not available nybble(); //command 0x30 = wake up #3 delay(10); //can check busy flag now instead of delay p1= 0x20; //put 0x20 on the output port nybble(); //function set: 4-bit interface command(0x28); //function set: 4-bit/2-line command(0x10); //set cursor command(0x0f); //display on; blinking cursor command(0x06); //entry mode set } /**********************************************************/
[12] ? ? 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 ? , ? 48hrs 2 ? low ? temperature ? storage ? endurance ? test ? applying ? the ? low ? storage ? temperature ? for ? a ? long ? time. ? \ 30 ? c ? , ? 48hrs 1,2 high ? temperature ? operation ? endurance ? test ? applying ? the ? electric ? stress ? (voltage ? & ? current) ? and ? the ? high ? thermal ? stress ? for ? a ? long ? time. ? +70 ? c ? 48hrs 2 ? low ? temperature ? operation ? endurance ? test ? applying ? the ? electric ? stress ? (voltage ? & ? current) ? and ? the ? low ? thermal ? stress ? for ? a ? long ? time. ? \ 20 ? c ? , ? 48hrs 1,2 high ? temperature ? / ? humidity ? operation ? endurance ? test ? applying ? the ? electric ? stress ? (voltage ? & ? current) ? and ? the ? high ? thermal ? with ? high ? humidity ? stress ? for ? a ? long ? time. ? +40 ? c ? , 90% ? rh ? , ? 48hrs ? 1,2 thermal ? shock ? resistance ? endurance ? test ? applying ? the ? electric ? stress ? (voltage ? & ? current) ? during ? a ? cycle ? of ? low ? and ? high ? thermal ? stress. ?? 0 ? c,30min ?\ > ? 25 ? c,5min ?\ > ? 50 ? 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=100pf ? ? 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 ? and ? terms ? & ? conditions ? http://www.newhavendisplay.com/index.php?main_page=terms ? ? ?

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