sdn0080g Avant Electronics Corporation, sdn0080g Datasheet - Page 3

• Manufacturer Part Number: sdn0080g
• Description: 80-segment Dot-matrix Stn Lcd Driver
• Manufacturer: Avant Electronics Corporation

2
2.1
2005 Oct 03
Avant Electronics
FUNCTIONAL BLOCK DIAGRAM AND DESCRIPTION
Functional block diagram
LOAD
CDI
DI4
DI3
R/L
DI2
CP
V
DI1
V4
V1
V3
EE
M
High voltage area
4 bits
Data Bus
Interface
Shift Control
O1 O2 O3
4
4-level LCD Driver Circuit
Level shifter (80 bits)
2nd Latch (80 bits)
1st Latch (80 bits)
(80 bits)
80-Segment Dot-matrix STN LCD Driver
3 of 18
80
80
80
Chip Disable &
Address Decoder
Address Decoder
Latch Control
Address Counter
(5 bits)
20
5
O79 O80
Fig.1 Functional Block Diagram
VDD
CDO
VSS
DISPOFF
SDN0080G
data sheet (v3)