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BU9795AGUW-E2 Datasheet(PDF) 9 Page - Rohm |
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BU9795AGUW-E2 Datasheet(HTML) 9 Page - Rohm |
9 / 15 page Technical Note 9/14 BU9795AKV,BU9795AFV,BU9795AGUW,BU9794AKV,BU97950FUV www.rohm.com 2011.03 - Rev.A © 2011 ROHM Co., Ltd. All rights reserved. LCD BIAS SELECTOR common driver Segment driver OSCILLATOR Power On Reset SD SCL VSS OSCIN VSS COM0……COM3 SEG0……SEG49 IF FILTER serial inter face Command register common counter DDRAM LCD voltage generator Command Data Decoder blink timing generator + - + - VLCD CSB TEST1 INHb VDD TEST2 SEG38 SEG21 SEG39 SEG20 SEG40 SEG19 SEG41 SEG18 SEG42 SEG17 SEG43 SEG16 SEG44 SEG15 SEG45 SEG14 SEG46 SEG13 SEG47 SEG12 SEG48 SEG11 SEG49 SEG10 COM0 SEG9 COM1 SEG8 COM2 SEG7 COM3 SEG6 49 64 32 17 <BU9794AKV> ●Block Diagram ●Pin Arrangement Fig.10 Block Diagram (BU9794AKV) Fig.11 Pin Arrangement (BU9794AKV) ●Terminal Description Terminal Terminal No. I/O Function INHb 8 I Input terminal for turn off display H: turn on display, L: turn off display TEST1 9 I Test input (ROHM use only) Must be connect to VSS TEST2 10 I Test input (ROHM use only) Must be connect to VSS OSCIN 4 I External clock input Ex clock and Int clock can be changed by command. Must be connect to VSS when use internal oscillation circuit. SD 7 I serial data input SCL 6 I serial data transfer clock CSB 5 I Chip select : “L” active VSS 3 - GND VDD 2 - Power supply VLCD 1 - Power supply for LCD driving SEG0-49 11-60 O SEGMENT output for LCD driving COM0-3 61-64 O COMMON output for LCD driving |
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