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BU97931FV-LB Datasheet(PDF) 2 Page - Rohm |
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BU97931FV-LB Datasheet(HTML) 2 Page - Rohm |
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2 / 32 page  Datasheet Datasheet 2/29 TSZ02201-0P4P0D300490-1-2 26.Feb.2014 Rev.002 www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 BU97931FV-LB MAX 112 segments (SEG28×COM4) Block Diagram / Pin Configuration / Pin Description Figure 2. Block Diagram Figure 3. Pin Configuration (TOP VIEW) Table 1 Pin Description Terminal Terminal Number I/O Unused Case Function CSB 26 I - Chip select: "L" active SCL 27 I - Serial data transfer clock SD 28 I - Input serial data VDD 29 - - Power supply for LOGIC CLKIN 30 I OPEN / VSS External clock input terminal (for display/PWM using selectable); Support Hi-Z input mode at internal clock mode VSS 25 - - GND VLCD 31 - - Power supply for LCD COM0 to 3 32 to 35 O OPEN COMMON output for LCD SEG0 to 22 36 to 40 1 to 18 O OPEN SEGMENT output for LCD SEG23 to 27 19 to 23 O OPEN SEGMENT output for LCD/GPO LED 24 O OPEN LED driver output Blink Timing Generator Common Counter CLKIN PWM Generator OSCILLATOR LCD BIAS SELECTOR Common Driver Power On Reset SD SCL VSS VSS SEG0…22 IF FILTER Serial Interface DDRAM GPO Data Latch LCD Voltage Generator Command Resister Data Decoder VLCD CSB VDD Segment Driver LED Driver GPO Controller Segment Driver/GPO LED COM0……COM3 SEG23...27 SEG19 SEG18 SEG14 SEG17 SEG13 SEG20 SEG16 SEG7 SEG5 SEG6 SEG8 SEG9 SEG10 SEG11 SEG12 SEG15 SEG23 SEG22 SEG21 SEG24 COM1 COM2 SEG2 COM3 SEG3 COM0 SEG0 SEG27 SEG25 SEG26 LED CSB SCL SEG4 SEG1 VDD CLKIN VLCD SD VSS |
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