Technics ST-X302L - IC TERMINAL FUNCTIONS; MICROCOMPUTER (MN187125 STT) PINOUT

ST-X302L
FUNCTIONS OF IC TERMINALS (IC901: MN187125STT)
Pin vO
No. Mark Division Function
1 VDD Power supply (connected to +5 V)
2 Osc2
Clock (4.19 MHz)
osc
GND
<
n n
+ -(-|- a
—_a | os —|Oo
Clock (32.768 kHz)
N|@
e)
KEY2 ;
Key data input terminal
KEY1
SD signal terminal
STEREO signal terminal
Tape deck drive signal terminal
(ood ies) n Oo
STEREO
P22
MFRO
MFRD
REMOTE
Power Down
SDC
Reset
Remote control signal terminal
Remote control signal detect terminal
af o
(oO Le)
—_
£
_ a
Remote control signal terminal
Power failure detect terminal
Tuner select signal output terminal
Mechanical power signal input terminal
16
POWER
TCIO
21 RST
SBTI
—
Er
: N
i)
oo
QO
m
9
Relay drive signal output terminal
4.19 MHz Test terminal
Reset terminal
Data output for 1C101 (LM7001)
Clock output
Clock input
Data output :
Data input
Auto/mono changeover terminal
Mute signal terminal
Rotary pulse input terminal
Key matrix
BUS CK1
BUS CK2
BUS DATA
26
27
O12 =/0O
30 BUS DATA2
wo
2 MUTE
AIN
wo wo pare
o
ht
oO] oa
NN] O] oO
wo oo
fo2) ié*)
S
KS
KS3
DGTO
fo
za eg
wo
Digital signal terminal for display
45 DGT7
P7
P70
SEG15
Reset
a
=|
NX
Segment signal terminal for display
Common signal terminal for display
SEGO
vPP
—18-