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LCD DRIVER (S6A0069)
The LCD driver can drive a dot matrix LCD having 40 segment and 16 common lines. The LSI contains 240
graphic symbols in the built-in character generator ROM, and stores 80 characters in the built-in display data
RAM. In accordance with command from the CPU, the LSI I capable of displaying up to 16 characters
simultaneously. The following table shows the pin function of the LSI.
Pin. No.
Terminal
1 ~ 22,
SEG1 ~ SEG40
63 ~ 80
23
GND
24 ~ 25
OSC1, OSC2
26 ~ 30
V1 ~ V5
31 ~ 32
CLK1, CLK2
33
VDD
34
M
35
D
36
RS
37
R/W
38
E
39 ~ 42
DB0 ~ DB3
43 ~ 46
DB4 ~ DB7
47 ~ 62
COM1 ~ COM16
In/Out
Out
Segment signal output
---
GND (0V) source
Terminal for the built-in clock pluse generator.
In/Out
The external resistor connected determines the oscillation
frequency.
In
Bias voltage level for LCD driving
---
Not used. Connected to extension driver clock
---
DVDD (+5V) source
---
Not used. Connected to extension driver.
---
Not used. Connected to extension driver.
Register selection Input. RS= "High". Data register is
In
selected. RS="Low", Instruction register is selected.
Read/Write selection Input. When R/W=High, read opera-
In
tion. When R/W=Low, write operation.
In
Read/Write enable signal.
---
Not used. Conencted to GND (0V)
In/Out
Data Bus.
Common signal/output. Pin 54 (COM8) and Pin 62
Out
(COM16) are not used.
— 4 —
Function
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