29
R-1750
R-1751
R-1752
R-1754
21
P41
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G7 line keys on key matrix is touched.
22
P42
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G8 line keys on key matrix is touched.
23
P43
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G9 line keys on key matrix is touched.
24
Vss
IN
Power source voltage : GND(0V).
The power source voltage to drive LSI is input to VSS terminal.
25
P44
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G10 line keys on key matrix is touched.
26
P45
OUT
Hood lamp driving signal.
To turn on and off solid state relay (SSR1). " 1 "
level : During Hood lamp ON (WORK LIGHT
level). " 2 " level: During Hood lamp ON (NIGHT
LIGHT level) . "H" level: During Hood lamp ON.
27
P46
OUT
Hood motor driving signal.
To turn on and off relay (RY3). "H" level : During
Hood motor ON. "L" level: During Hood lmotor
OFF.
28
P47
OUT
Hood motor high / low driving signal.
To turn on and off relay (RY4). "H" level : During
Hood motor high. "L" level: During Hood lmotor
low.
29-36
D8-D15
OUT
Data signal is output to IC2 and IC5.
37
Vcc
IN
Power source voltage : +5V.
The power source voltage to drive LSI is input to Vcc terminal. Connected to VCC.
38-45
A0-A7
OUT
Address signal is output to IC2 and IC5.
46
Vss
IN
Power source voltage : GND (0V).
The power source voltage to drive LSI is input to Vss terminal.
47-58
A8-A19
OUT
Address signal is output to IC2 and IC5.
59
Vss
IN
Power source voltage : GND (0V).
The power source voltage to drive LSI is input to Vss terminal.
60
WATT
IN
Connected to VCC.
61
P61
OUT
Envelope signal to sound buzzer.
A: key touch sound (short beep). B: Completion sound (melody or long beep).
62
P62
OUT
Reset signal is output to IC5.
63
P67
OUT
Terminal not used.
64
STBY
IN
Connected to VCC.
65
RES
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily set
"L" level the moment power is applied, at this time the LSI is reset. Thereafter set at "H"
level.
66
NMI
IN
Connected to GND.
67
Vss
IN
Power source voltage : GND (0V).
The power source voltage to drive LSI is input to Vss terminal.
68
EXTAL
OUT
Internal clock oscillation output.
Output to control oscillation input to EXTAL.
Pin No.
Signal
I/O
Description
ON
OFF
H : +5V
L : GND
ON
OFF
H : +5V
L : GND
L
1
H
L
AC
CURRENT
WORK
LIGHT
NIGHT
LIGHT
H
2
