NX-MD1R/NX-MD1
1-64
UPD780024AGKB21 (IC251) : Unit micon
1. Pin layout
2. Pin function (1/2)
1
~
16
48
~
33
17 ~ 32
64 ~ 49
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
Pin
No.
Symbol
I/O
Function
MCS
MRDY
CDINDEX
CDEMP
CDTNO
CDCOPY
VSSO
VDDO
MUTE
SUBQ
SQCK
KCMND
MSTAT
KCLK
RXDO
TXDO
VDD1
AVSS2
KEY1
KEY2
PCHK
/OPEN
/REST
-
-
-
-
-
-
-
-
-
-
-
O
-
O
O
I
O
-
-
-
-
-
I
I
-
O
I
O
I
I
O
-
-
-
I
I
-
-
I
I
I
Connect to GND
Non connect
Synchronization/asynchronus system
Reday signal input terminal
CD emphasis
CD track No. change
CD copy right or wrong
Connect to GND
Power supply
Non connect
Non connect
Non connect
Mute signal input
Sub Q data input
Non connect
Sub Q clock output
Reset signal input
Not use
Command data clock input
(Command in)
(Status out)
Connect to GND
Connect to GND
Power supply
Key1 signal from running jig
Key2 signal from running jig
Connect to GND
Connect to GND