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2006 Aug 16
5 of 52
data sheet (v6.3)
Dot-matrix STN LCD Driver with 32-row x 80-column
SBN1661G_M18, SBN1661G_M02, SBN0080G_S18, SBN0080G_S02
Avant Electronics
2
FUNCTIONAL BLOCK DIAGRAM AND DESCRIPTION
2.1
Funtional block diagram (SBN1661G_M18, SBN1661G_M02)
Fig.1 Functional Block Diagram
Level Shifter
MUX
COMMON Counter
Display Data RAM Buffer
32 row x 80 column
(2560 bits)
Display Data RAM
Column Address Decoder
Display Data RAM Access Control
Display
Display Data
Read/Write
Control
Control
Mapping Circuit
Microcontroller
Interface
OSC and
Command
Decoder
Display ON/OFF Register
Display Start Line Register
Page Address Register
Status Register
Duty Select Register
Static Drive ON/OFF
Column Address Register
Register
Timing Gen.
V5
V4
V3
V2
V1
Display
Control
Time Gen.
C/S Mappig Register
Output Driver
High Voltage Circuit