BU9797FUV Datasheet, PDF (1/28 Pages) Rohm – Integrated Buffer AMP for LCD Driving

Datasheet
Standard LCD Segment Driver
BU9797FUV MAX 144 Segments (SEG36×COM4)
Features
„ Integrated RAM for Display Data (DDRAM):
36 x 4 bit (Max 144 Segment)
„ LCD Drive Output:
4 Common Output, Max 36 Segment Output
„ Integrated Buffer AMP for LCD Driving
„ Integrated Oscillator Circuit
„ No External Components
„ Low Power Consumption Design
Key Specifications
■ Supply Voltage Range:
+2.5V to +5.5V
■ Operating Temperature Range: -40°C to +85°C
■ Max Segments:
144Segments
■ Display Duty:
1/4
■ Bias:
1/2, 1/3 selectable
■ Interface:
2wire serial interface
Package
W (Typ) x D (Typ) x H (Max)
Applications
„ Telephone
„ FAX
„ Portable equipment (POS, ECR, PDA etc.)
„ DSC
„ DVC
„ Car audio
„ Home electrical appliance
„ Meter equipment
Etc.
TSSOP-C48V
8.1mm x 12.5mm x 1.0mm
Typical Application Circuit
BU9797FUV
VDD
VDD
VLCD
Controller
SDA
SCL
OSCIN
TEST1
VSS
COM0
COM1
COM2
COM3
SEG0
SEG1
・・・・・・・
SEG35
・・・・・・・
Segment
LCD
Using internal oscillator
Figure 1. Typical application circuit
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○This product has no designed protection against radioactive rays.
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TSZ02201-0P4P0D300820-1-2
5.Aug.2014 Rev.001