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| Datasheet File OCR Text: |
| BM1621 RAM 19x4 BM1621 76 LCD BM1621 S/W LCD LCD BM1621 2.4V5.2V 256kHz RC 1/2 1/3 1/2 1/4 LCD 1/3 19x4 LCD 19x4 bit RAM 3 LCD R/W 3 VLCD LCD SEG10 11 SEG11 12 SEG12 13 SEG13 14 SEG14 15 SEG15 16 SEG16 17 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 CS 10 9 8 7 6 5 4 3 2 1 31 30 29 28 27 26 18 19 20 21 22 23 24 25 SEG17 SEG18 SEG19 COM4 COM3 COM2 COM1 WR DATA GND VLCD OSCO VDD NC 1.0 2003-09-27 WWW.BOOKLY.COM 1 13 BM1621 Pad No 1 I/O I CS CS BM1621 WRITE WR DATA BM1621 / GND (No Connection) RC OSCO LCD LCD COM LCD SEG CS WR DATA GND NC OSCO VLCD VDD COM1COM4 SEG1SEG19 31 30 29 25 27 28 26 21-24 2-20 I I/O I I O O OSCO R A M CS WR D A TA G ND VSS C OM1 LC C OM4 SEG1 S E G 19 V LC D CS WR , DATA COM1COM4SEG1SEG19LCD 1. BM1621 19x4 LCD RAM LCD LCD SEG RAM WWW.BOOKLY.COM 2 9 BM1621 2. 1 RAM RAM 19x4 RAM LCD RAM WRITE RAM LCD COM4 SEG1 SEG2 SEG3 SEC4 SEC5 SEC6 SEC7 SEC8 SEC9 SEC10 SEC11 SEC12 SEC13 SEC14 SEC15 SEC16 SEC17 SEC18 SEC19 COM3 COM2 COM1 0 2 4 6 8 10 12 14 15 16 18 20 22 24 26 28 29 30 31 ADD Bit 4 Bit 3 Bit 2 Bit 1 Bit RAM BM1621 LCD OFF LCD LCD OFF LCD SYS DIS POWER DOWN BM1621 SYS DIS OSCO R C 256KHZ WWW.BOOKLY.COM 3 9 BM1621 2 LCD BM1621 7619x4 LCD 1/2 1/3 23 4 COM LCD BM1621 LCD LCD 256Hz LCD LCD OFF LCD ON BIASCOM 10000000010X 10000000011X 1000010abXcX LCD LCD c=01/2 c=11/3 ab=002COM ab=013COM ab=104COM 1 0 0 ID ID LCD OFF LCD LCD LCD ON LCD LCD BIAS COM LCD BM1621 LCD 3 BM1621 S/W BM1621 LCD BM1621 ID 1 0 0 LCD ID ID WRITE COMMAND ID 101 100 ID 1 0 0 CS 1 CS 0 ID 4 BM1621 3 CS BM1621 CS 1 BM1621 BM1621 / WR WRITE WR BM1621 IRQ BM1621 WWW.BOOKLY.COM 4 9 BM1621 5 a. WRITE 1 0 1 CS WR 1 0 1 A5 A4 A3 A2 A1 A0 D0 D1 D2 D3 1(MA1) (MA1) 1 0 IID 1 A5 A4 A3 A2 A1 A0 D0 D1 D2 D3 2(MA2) ((MA2) DATA b. WRITE CS WR DATA 1 0 IID 1 A5 A4 A3 A2 A1 A0 D0 D1 D2 D3 D0 D1 D2 D3 D0 D1 D2 D3 D0 D1 D2 D3 D0 1(MA) (MA) (MA+1) (MA+2) ((MA+3) WWW.BOOKLY.COM 5 9 BM1621 ID 101 100 100 100 100 100 100 100 D/C D C C C C C C C Yes Yes WRITE SYS DIS SYS EN LCD OFF LCD ON TIMER DIS WDT DIS BIAS 1/2 A5A4A3A2A1A0D0D1D2D3 0000-0000-X 0000-0001-X 0000-0010-X 0000-0011-X 0000-0100-X 0000-0101-X 0010-abX0-X RAM LCD LCD LCD WDT LCD1/2 ab=002COM ab=013COM ab=104COM LCD1/3 ab=002COM ab=013COM ab=104COM BIAS 1/3 100 0010-abX1-X C TOPT 100 1110-0000-X C TNORMA 100 1110-0011-X C Yes L 1. X 2. A5A0RAM 3. D3D0RAM 4. D/C/ 5. Def. 6. 1 0 1 1 0 0 ID 1 0 0 ( ID 1 0 0 ) 7. BM1621 BM1621 WWW.BOOKLY.COM 6 9 BM1621 -0.35.5 VSS-0.3VDD+0.3 -50125 -2575 V V 1. DC DATA DATA LCD COM LCD COM LCD SEG LCD SEG 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V RC DATA WR CS DATA WR CS VOL=0.3V VOL=0.5V VOH=2.7V VOH=4.5V VOL=0.3V VOL=0.5V VOH=2.7V VOH=4.5V VOL=0.3V VOL=0.5V VOH=2.7V VOH=4.5V DATA WR CS RD VDD 2.4 150 300 0.1 0.3 0 0 2.4 4.0 0.5 1.3 -0.4 VDD IDD1 ISTB VIL VIH VOL1 VOH1 IOL2 IOH2 IOL3 IOH3 RPH 5.2 300 600 5 10 0.6 1.0 3.0 5.0 V A A A A V V V V mA mA mA mA A A A A A A A A k k -0.9 80 150 -80 -120 60 120 -40 -70 40 30 1.2 2.6 -0.8 -1.8 150 250 -120 -200 120 200 -70 -100 80 60 150 100 WWW.BOOKLY.COM 7 9 BM1621 2. fSYS tCOM fCLK tCS AC LCD COM RD PIN 3 VDD 3V 5V -- 3V 5V -- 3V RC nCOM 50% -- -- -- -- 3.34 1.67 -- -- -- -- -- 256 256 n/fLCD -- 250 -- -- 120 120 120 100 100 -- -- 75 150 -- -- s -- -- -- -- -- -- ns ns ns ns ns kHz s kHz ns CS -- -- -- -- -- tCLK WR 1 5V / 1 WR 2 WR 2 CS WR 3 CS WR RD 3 3V 5V 3V 5V 3V 5V 3V 5V 3V 5V trtf tsu th tsu1 th1 WRRD 90% CLK 50% 10% tf tr VDD GND VDD GND VDD GND DB 50% t su th 50% t CLK t CLK 1 t cs CS 50% t su1 WRRD CLK 50% FIRST CLK LAST CLK t h1 WRRD CLK VDD GND VDD GND 2 3 WWW.BOOKLY.COM 8 9 BM1621 CS DATA WR 1/2 or 1/3 Bias 2,3 or 4 COM LCD OSO VDD GND VLCD VDD VR LCD VDD=5VVLCD=4VVR=15k20% R WWW.BOOKLY.COM 9 9 |
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