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[1] NHD-240128BZ-NSW-BTW graphic liquid crystal display module nhd - newhaven display 240128- 240 x 128 pixels bz- model n- transmissive sw- side white led backlight b- stn - blue (-) t- 12:00 view w- wide temperature (-20c ~ +70c) 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
- - ,/ 00% - & 0!0$ 1, / 2 - !00 1- ,2 3 4 '00 " ,- $0 - -, , 3 ! 040 1, 5 * 03 6 78 !)$ ) - 3 & 7$$4 9+:"* 0$, 0/ - 1 4 5 6 8 7 9 1 3 2 transmissive -2 0 o c ~ + 70 o c -30 o c ~ + 80 o c pin description 10 11 12 13 14 15 16 17 18 19 20 vss vdd v0 a0 r/w e db0 db1 db2 db3 db4 db5 db6 db7 /cs 68/80 /reset vee led+ led - newhaven display NHD-240128BZ-NSW-BTW mechanical drawing 20 [4] pin description and wiring diagram pin no. symbol external connection function description 1 vss power supply ground 2 vdd power supply power supply for logic (+5.0v) 3 v0 adj. power supply power supply for contrast (approx C 13.5v) 4 a0 mpu register select signal. 0: instruction; 1: d ata 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 dat a 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 /cs mpu active low chip select signal 16 68/80 mpu interface select pin. 0: 8080 family 1: 6 800 family 17 /reset mpu active low reset signal 18 vee power supply positive voltage supply output (+20v) 19 led+ power supply power supply for led backlight (+3.0v ) 20 led- power supply ground for backlight recommended lcd connector: 2.54mm 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 4.7 5.0 5.5 v supply current idd vdd=5.0v - 3.5 5.5 ma supply for lcd (contrast) vdd-v0 ta=25 - -13.5 - v h level input vih 2.2 - vdd v l level input vil 0 - 0.6 v h level output voh 2.4 - - v l level output vol - - 0.4 v backlight supply voltage vled - - 3.0 - v backlight supply current iled vled=3.0v - 36 - ma optical characteristics item symbol condition min. typ. max. unit viewing angle - vertical av cr 2 - 60 - ? viewing angle - vertical av cr 2 - 35 - ? viewing angle C horizontal ah cr 2 - 40 - ? viewing angle - horizontal ah cr 2 - 40 - ? contrast ratio cr - 6 - - response time (rise) tr - - 150 250 ms response time (fall) tf - - 150 250 ms controller information built-in ra8835. download specification at http://www.newhavendisplay.com/app_notes/ra8835.pdf [6] table of commands [7] timing characteristics [8] [9] [10] [11] example initialization program //------------------------------------------------- ------------------------------ sbit a0 = p3^0; sbit rw = p3^7; sbit e = p3^4; sbit cs = p3^1; sbit im = p3^6; sbit rst= p3^2; //------------------------------------------------- ------------------------------ void writecom(int a) { cs = 0; rw = 0; a0 = 1; e = 1; p1 = a; e = 1; } void write(int a) { cs = 0; rw = 0; a0 = 0; e = 1; p1 = a; e = 1; } //------------------------------------------------- ------------------------------ void init() { im = 1; rst = 0; delay(10); rst = 1; delay(100); writecom(0x40); write(0x30); write(0x87); write(0x07); write(0x1d); write(0x50); write(0x80); write(0x1e); write(0x00); writecom(0x44); write(0x00); write(0x00); write(0x80); write(0x00); write(0x40); write(0x80); write(0x00); write(0x00); write(0x00); write(0x00); write(0x5a); write(0x00); write(0x5b); write(0x0c); write(0x4c); write(0x46); [12] write(0xb0); write(0xb0); write(0x42); write(0x00); for(a = 0; a < 3840; a++) { write(0x00); } writecom(0x46); write(0x60); write(0x09); writecom(0x42); write(0x00); for(a = 0; a < 3840; a++) { write(0x00); } writecom(0x59); write(0x04); } //------------------------------------------------- ------------------------------ [13] quality information test item content of test test condition note high temperature storage endurance test applying the hig h storage temperature for a long time. +80?c , 200hrs 2 low temperature storage endurance test applying the lo w storage temperature for a long time. -30?c , 200hrs 1,2 high temperature operation endurance test applying the electric stress (voltage & current) and the high thermal stress for a long time. +70?c 200hrs 2 low temperature operation endurance test applying the electric stress (voltage & current) and the low thermal stress for a long time. -20?c , 200hrs 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. +60?c , 90% rh , 96hrs 1,2 thermal shock resistance endurance test applying the el ectric stress (voltage & current) during a cycle of low and high thermal stress. -20?c,30min -> 25?c,5min -> 70?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 elect ric 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 containe r. 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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