9729K Datasheet | BU9729K





(Datasheet) 9729K Datasheet PDF Download

Part Number 9729K
Description BU9729K
Manufacture Rohm
Total Page 12 Pages
PDF Download Download 9729K Datasheet PDF

Features: Standard ICs Segment-type LCD driver BU 9729K The BU9729K is a driver for segme nted liquid crystal displays, which ena bles connection with a microcomputer th rough a serial interface. 4-bit common output and an internal power supply cir cuit for LCD drive make it possible to configure a low-cost display system. Ap plications • Movie projectors, car au dio equipment, telephones Features • 1) Serial interface (8-bit length). 2) Display RAM: 72bits, internal (up to 72 segments can be displayed). 3) Intern al power supply circuit for liquid crys tal drive. 4) Display duty: 1 / 4. 5) L ow-voltage and low-current operation su pported. •Block diagram www.DataShee t4U.com VLCD VC LCD Driver Bias Circuit VDD VSS SEG1 SD SCK C/D CS Serial In terface Address Counter Display Data RA M (DD RAM) LCD Segment Driver 18bits SE G18 SEG2 Command / Data Register LCD C ommon Driver 4bits COM1 COM2 COM3 COM4 Command Decoder Timing Generator Co mmon Counter OSC1 OSC2 1 Standard ICs BU9729K •Pin assignments .

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Standard ICs
Segment-type LCD driver
BU9729K
The BU9729K is a driver for segmented liquid crystal displays, which enables connection with a microcomputer
through a serial interface. 4-bit common output and an internal power supply circuit for LCD drive make it possible to
configure a low-cost display system.
Applications
Movie projectors, car audio equipment, telephones
Features
1) Serial interface (8-bit length).
2) Display RAM: 72bits, internal (up to 72 segments
can be displayed).
3) Internal power supply circuit for liquid crystal drive.
4) Display duty: 1 / 4.
5) Low-voltage and low-current operation supported.
Block diagram
www.DataSheet4U.com
VLCD
LCD Driver
Bias Circuit
VC
VDD
VSS
SD
SCK
C/D
CS
Serial
Interface
Address
Counter
Display Data RAM
(DD RAM)
LCD
Segment
Driver
18bits
SEG1
SEG2
SEG18
Command / Data
Register
Command
Decoder
Timing
Generator
Common
Counter
LCD
Common
Driver
4bits
COM1
COM2
COM3
COM4
1

                    
              






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