lc7940kd Sanyo Semiconductor Corporation, lc7940kd Datasheet - Page 4

• Manufacturer Part Number: lc7940kd
• Description: Stn Dot Matrix Lcd Segment Driver
• Manufacturer: Sanyo Semiconductor Corporation

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Block Diagram
V EE
SDI
CDI
P/S
DI2
DI3
DI1
CP
V3
V4
V1
M
SER/PAR
Data Bus
Interface
Control
4 bits
4
LC7940KD / LC7941KDR
4 Level LCD Drive Circuit
Level Shifter (80 bits)
2nd Latch (80 bits)
1st Latch (80 bits)
(80 bits)
80
80
80
Address Decoder
Address Counter
Chip Disable &
Latch Control
(7bits)
20
No.A0573-4/13
V DD
V SS
DISPOFF
CDO