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

Datasheet
Standard LCD Segment Driver
BU9797FUV-M 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
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○This product has no designed protection against radioactive rays.
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TSZ02201-0P4P0D300430-1-2
26.Aug.2013 Rev.001