View NHD-14432WG-BTFH-VT_9080470.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

nhd - 14432wg - btfh - v#t graphic liquid crystal display module nhd - newhaven display 14432 - 144 x 32 pixels wg - display type: graphic b - model t - white led backlight f - fstn (+) h - transflective, 6:00 optimal view, wide temperature v#t - built - in positive voltage rohs compliant newhaven display international, inc. 2661 galvin ct. 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 10/16 /08 initial release - 1 4/5 / 10 user guide reformat be 2 5/10/ 10 block diagram/optical updated be 3 5/14/ 10 updated mechanical drawing mc 4 1/24/ 12 timing characteristics updated ak 5 6/7/ 13 controller information added ak 6 11/4/16 electrical characteristics updated tm 7 3/8/17 backlight characteristics updated sb 8 7/5/17 backlight characteristics updated tm 9 3 / 5 / 1 8 b a c k l i g h t v o l t a g e c o r r e c t e d s b functions and features ? 144x32 pixels ? built - in st7920 - 0c c ontroller ? + 5.0 v power supply ? 1/32 duty ? rohs compliant
1 2 3 4 5 6 a b c d b c d 1 2 3 4 5 6 mechanical drawing a [3] the informaton contained herein is the exclusive property of newhaven display internatonal, inc. and shall not be copied, reproduced, and/or disclosed in any format without permission. nhd-14432wg-btfh-v#t 03/08/17 date unit part number: mm gen. tol. 0.3 rev descripton date 0.38 0.42 0.38 0.42 75 .0 2.5 71.2 66.0(va ) 80.0 0.5 4.95 4- 2.5 pth 4- ?? 5.0 pa d 10 .33 7.55 11.6 10.3 16.0( va) 5.7 36.0 0.5 8.0 p2. 54*15=38 .1 1.8 16- ?? 1.0 pth 40 .55 18 .3 2 60. 44( aa) 13.4( aa) 144 * 32 do ts 1.6 25.2 31.0 2.5 75 .0 2.5 16 1 13.2 8.6 d b5 12 15 16 14 13 a k d b7 d b6 v ss1 d b0 7 11 10 8 9 d b4 d b3 d b2 d b1 4 6 5 3 2 r s e r/w v o v dd pin assignment notes: 1. driver: 1/32 duty 2. display mode: fstn positve / trans?ectve 3. optmal view: 6:00 4. voltage: 5.0v vdd, 4.35v vlcd 5. backlight: white led 6. driver ic: st7920-0c proprietary
[ 4 ] pin description and wiring diagram pin no. symbol external connection function description 1 v ss power supply ground 2 v dd power supply power supply for logic (+5 .0 v) 3 v 0 - no connect 4 rs mpu register s elect: 1=data, 0=instruction 5 r/w mpu read/write select signal, r/w=1: read r/w: =0: write 6 e mpu operation e nable signal. falling edge triggered. 7 - 14 db0 - db7 mpu this is an 8 - bit bi - directional data bus 15 led+ power supply b acklight anode ( 32 ma ) 16 led - power supply b acklight cathode (ground) recommended lcd connector : 2.54 mm pitch pins backlight connector: - mates with: -
[ 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 - 30 - +80 ? c supply voltage v dd - 4.5 5.0 5.5 v supply current i dd t op =25 v dd =5.0v 0.5 1.0 3.5 ma supply for lcd (contrast) v lcd 4.1 4.35 4.5 v h level input v ih - 0.7 * v dd - v dd v l level input v il - v ss - 0.6 v h level output v oh - 0.8 * v dd - v dd v l level output v ol - v ss - 0.4 v backlight supply voltage v led - 3 . 4 3 . 5 3 . 6 v backlight supply current i led v led = 3 . 5 v 1 0 3 0 4 0 ma optical characteristics item symbol condition min. typ. max. unit optimal viewing angles top ? y+ cr 2 - 30 - ? bottom ? y - - 60 - ? left x - - 45 - ? right x+ - 45 - ? contrast ratio cr - 2 5 - - response time rise t r t op = 25c - 150 200 ms fall t f - 150 200 ms controller information built - in st7920 - 0c . please d ownload specification at http://www.newhavendisplay.com/app_notes/st7920.pdf
[ 6 ] table of commands
[ 7 ]
[ 8 ] timing characteristics mpu write data to st7920
[ 9 ] mpu read data from st7920 built - in font table please see: http://www.newhavendisplay.com/appnotes/fonttables/graphlcd/st7920 - 0c_font.pdf
[ 10 ] example initialization program // ----------------------------------------------- -------------------------------- #include #include "al.h" sbit id = p3^0; sbit rw = p3^7; sbit e = p3^4; // ------------------------------------------------------------------------------- void init() { wcom(0x38); wcom(0x0c); wcom(0x06); wcom (0x02); wcom(0x01); delay(10); row = 0x80; for(counthi = 1; counthi <=32; counthi++) { wcom(0x3e); wcom(row); wcom(0x80); for(count = 1; count <=40; count++) { wdata(0x00); } row++; } } // ---------------------------------------- --------------------------------------- void wcom(char i) { p1 = i; id = 0; //reset p3.0 rw = 0; //reset p3.7 e = 1; //set p3.4 delay(1); e = 0; //reset p3.4 } // ------------------------------------------------------------------------------- void wdata(char i) { p1 = i; id = 1; //set p3.0 rw = 0; //reset p3.7 e = 1; //set p3.4 delay(1); e = 0; //reset p3.4 } // -------------------------------------------------------------------------------
[ 11 ] 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 , 200 h rs . 2 low temperature storage endurance test applying the low storage temperature for a long time. - 30 ? c , 200 hrs. 1,2 high temperature operation endurance test applying the electric stress (voltage & current) and the high thermal stress for a long time. +70 ? c , 200 hrs. 2 low temperature operation endurance test applying the electric stress (voltage & current) and the low thermal stress for a long time. - 20 ? c , 200 hrs. 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. + 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 for 10 cycles vibration test endurance test applying vibration to simulate transportation and use. 10 - 55hz, 1 . 5mm amplitude. 60 sec in each of 3 directions x,y,z for 15 minutes 3 static electricity test endurance test applying electric static discharge. v s = 800v, r s = 330 , c s =1 5 0pf 10 t ime s 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.newhavendispl ay.com/index.php?main_page=terms

▲Up To Search▲

Price & Availability of NHD-14432WG-BTFH-VT

	To Download NHD-14432WG-BTFH-VT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .