16COM/40SEG CONTROLLER/DRIVER
SPLC780A1
16COM/40SEG CONTROLLER/DRIVER
GENERAL DESCRIPTION The SPLC780A1, a dot-matrix LCD controller and driver from S...
Description
SPLC780A1
16COM/40SEG CONTROLLER/DRIVER
GENERAL DESCRIPTION The SPLC780A1, a dot-matrix LCD controller and driver from SUNPLUS, is a unique design for displaying alpha-numeric, Japanese-Kana characters and symbols. The SPLC780A1 provides two types of interfaces to
MPU: 4-bit and 8-bit interfaces. The transferring speed of 8-bit is twice faster than 4-bit. A single SPLC780A1 is able to display up to two 8-character lines. can be extended. By cascading with SPLC100 or SPLC063, the display capability
The CMOS technology ensures the power saves in the most efficient way and the
performance keeps in the highest rank.
FEATURES Character generator ROM: 7200 bits
BLOCK DIAGRAM
OSC1 Timing Generation Circuit Parallel to Serial Data Conversion Circuit Busy Flag
Á Character Generator ROM Â Ã Ã Â Â Á Character Generator RAM Â
Á Á Á Á
Character font 5 x 7 dots: 160 characters Character font 5 x 10 dots: 32 characters
OSC2 VDD VSS
CL1,CL2 M 40-bit Shift Register
ÄÅ
D
Character generator RAM: 512 bits Character font 5 x 7 dots: 8 characters Character font 5 x 10 dots: 4 characters
DB3-0 DB7-4 RS R/W E Power Supply for LCD Drive : (V5-1) I/O Buffer Instruction Register Instruction Decorder
à Â
Cursor Blink Control Circuit
Â
Data Register
Latch Circuit
ÄÅ
Display Data RAM 80 Bytes
16-bit ÆÇ Shift Register
40 Segments x 16 Commons LCD Driver
COM16-1
Provide connecting to 4-bit or 8-bit MPU Direct driver for LCD: 16 COMs x 40 SEGs Duty factor (selected by program):
Ã
SEG4...
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