1-16
KD-S723R/KD-S721R
UPD178078GF-561 (IC701) : System CPU
1.Pin layout
80 ~ 51
1 ~ 30
50
~
31
81
~
100
Pin
NO.
1
2
3
4
5
6,7
8
9
10
11
12
13
14
15
16
17
18
19
20
21,22
23
24
25
26
27
28
29
30,31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
-
I
I
O
O
-
I
O
O
-
O
O
O
-
O
I
I
I
I
I
I
I
I
I
-
I
I
-
-
-
-
-
-
I
-
I
-
-
I
-
I
-
NC
BUSINT
BUSSI
BUSSO
JBUS-SCK
NC
I2CDAI
I2CDAO
I2CCLK
NC
LCDDA
LCDSCK
BUSI/O
NC
LCDCE
SW2
SW3
SW4
RSTSW
NC
KEY0
KEY1
KEY2
LEVEL
AVDD
SM
SQ
NC
AVSS
REGCPU
VDD
REGOSC
X2
X1
GND0
SD/ST
GND2
NC
IFC
VDDPLL
OSC
NC
I/OSymbol FUNCTION
No connection
JVC bus communication line
JVC bus communication line
JVC bus communication line
JVC bus communication line
No connection
Serial data input
Serial data output
Serial clock output
No connection
LCD driver serial data output
LCD driver serial clock output
JVC bus output select
No connection
LCD driver communication line
CD mech switch
CD mech switch
CD mech switch
Traverse mech rest switch
No connection
Key input
Key input
Key input
Audio level input
Power supply
Signal level meter input
Signal quality input
Non connection
Connect to GND
Connect to GND with capacitor
Power supply
Connect to GND with capacitor
System clock
System clock
Connect to GND
Station detector & Stereo indicator
Connect to GND
No connection
IF count input
---
FM,AM osc input
No connection
2.Pin function (1/2)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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