– 10 –
1 ~ 3
COM1 ~ COM3
O
LCD driver common.
4 ~ 20
SEG1 ~ SEG17
O
LCD driver out.
21
SEG18
O
LCD driver out/key matrix timing output pin.
22
SEG19
O
Not used.
23
SEG20(KR3)
O
Not used.
24 ~ 26
KR2 ~ KR0
O
Not used.
27, 28
K0, K1
I
Key matrix input pin. (Not used)
29, 30
K2, K3
I
Key matrix input pin.
31
MOT ON
O
Motor activation control pin. H:ON, L:OFF.
32
MOT HI
O
Motor speed control pin. H:HI, L:LO.
33
F/R CTL
O
Control motor rotate direction and FWD/REV control pin. H:FWD/CW, L:REV/CCW.
34
BRAKE
O
Motor brake control pin. H:ON, L:OFF.
35
S-BASS
O
S-BASS control pin. H:OFF, L:ON.
36
AM/FM CTL
O
AM/FM control pin. L:AM, H:FM.
37
POW-ON
O
AMP circuit power control pin. H:OFF, L:ON.
38
MOT CH
I
Motor rotation detection pin.
39
LOAD CTL
O
Battery capacity check signal output pin. H:ON.
40
P-SNSR
I
Photo sensor signal input pin.
41
L.V.STOP
I
Voltage reduction detection signal input pin. L:Reduce voltage.
42
MAIN
I
Main unit key input pin.
43
REMOTE
I
Remote controller key input pin. (Connected to VDD through resistors)
44
EJECT SW
I
Cassette eject SW input pin. L:EJECT.
45
HOLD
I
Main unit key hold SW input pin. H:ON.
46
BUZR
O
Buzzer output pin.
47
POWER MUTE
O
Mute signal output pin. H:OFF, L:ON.
48
TEST
I
Test mode control input pin. (Connected to GND)
49
WAKE
I
Backup detection signal input pin.
50
TUNE IN
I
Tunning detection signal input pin.
51
TU OUT
O
TU operation control pin. H:TU OFF, L:TU ON.
52
PLL OUT
O
Phase comparator output pin.
53
GND
–
Connected to GND.
54
FM IN
I
FM programmable counter input pin.
55
AM IN
I
AM programmable counter input pin.
56
VDD
–
Connected to VDD.
57
RESET
I
System reset signal input pin.
58
X OUT
O
Connected to crystal oscillator (75 kHz).
59
X IN
I
Connected to crystal oscillator (75 kHz).
60
VXT
–
Crystal oscillator power supply pin.
61
VLCD
–
LCD drive reference voltage pin.
62
C1
–
LCD drive double voltage booster pin.
63
C2
–
LCD drive double voltage booster pin.
64
VEE
–
LCD drive 1.5 V voltage supply.
Pin No.
Pin Name
I/O
Description
IC DESCRIPTION
IC, TC9318FA-069
