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BU9794AKV Datasheet, PDF (1/26 Pages) Rohm – Standard LCD Segment Driver | |||
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Datasheet
Standard LCD Segment Driver
BU9794AKV MAX 200 segments (SEG50ÃCOM4)
âFeatures
ï® Integrated RAM for display data (DDRAM) :
50 Ã 4bit (Max 200 Segment)
ï® LCD drive output :
4 Common output, 50 Segment output
ï® Integrated Buffer AMP for LCD driving
ï® Integrated Oscillator circuit
ï® No external components
ï® Low power consumption design
ï® Independent power supply for LCD driving
âKey Specifications
â Supply Voltage Range:
+2.5V to +5.5V
â LCD drive power supply Range: +2.5V to +5.5V
â Operating Temperature Range: -40°C to +85°C
â Max Segments:
200 Segments
â Display Duty:
1/4
â Bias:
1/2, 1/3 selectable
â Interface:
3wire serial interface
âPackage
W (Typ.) x D (Typ.) x H (Max.)
âApplications
ï® Telephone
ï® FAX
ï® Portable equipment (POS, ECR, PDA etc.)
ï® DSC
ï® DVC
ï® Car audio
ï® Home electrical appliance
ï® Meter equipment, etc.
VQFP64
12.00mm x 12.00mm x 1.60mm
âTypical Application Circuit
VLCD VDD
VDD
VLCD
Controller
VDD
CSB
SD
SCL
INHb
OSCIN
TEST1
TEST2
VSS
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG49
Segment
LCD
Internal oscillator circuit mode
Figure 1. Typical application circuit
âProduct structureï¼Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
âThis product is not designed for protection against radioactive rays.
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TSZ02201-0A0A2D300010-1-2
10.Apr.2015 Rev.004
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