— 11 —
Pin No.
Signal
I n / O u t
Function
1
NC
—
No connect
2 ~ 10
A0 ~ 7, A12
In
Address bus
11 ~ 13
I/O 0 ~ 2
In/Out
Data bus
14
GND
In
GND / 0 [V]
15 ~ 19
I/O 3 ~ 7
In/Out
Data bus
20
CE
In
Chip enable signal
21
A10
In
Address bus
22
OE
In
Output enable signal
23 ~ 25
A8, 9, 11
In
Address bus
26
CE2
In
Chip enable signal
27
WE
In
Write enable signal
28
VCC
In
Power supply / 3 [V]
2. RAM (LC3564QM-85)
Pin No.
Signal
I n / O u t
Function
220
OPT3
Out
Turn on signal for Photo Sensor
221
OPT4
In
Communication data through Photo Sensor
222
OPT5
Out
Turn on signal for LED (Infrared)
