Ic Pin Function Descriptions - Mitsubishi Electric DD-4020 Service Manual

IC PIN FUNCTION DESCRIPTIONS

IC2003 ( PT6315 )
Pin In/ Signal
No. Out Name
1 - N.U.
2 - N.U.
3 - N.U.
4 - N.U.
5 In OSC
6 Out DOUT
7 In DIN
8 In CLK
9 In STB
10 In K1
11 In K2
12 - VSS
13 - VDD
14 Out a / KEY-1
15 Out b / Key-2
16 Out c / Key-3
17 Out d / Key-4
18 OUT e
19 OUT f
20 OUT g
21 OUT h
22 OUT i
23 OUT j
24 - N.U.
25 - N.U.
26 - N.U.
27 - N.U.
28 - N.U.
29 - N.U.
30 - VEE
31 - N.U.
Function
Not Used
Not Used
Not Used
Not Used
Oscillator Input
Serial Data Output
Serial Data Input
Clock Input
Serial Interface Strobe
Key Data 1 Input
Key Data 2 Input
GND
Power Supply
Segment Output
/ Key Souce-1
Segment Output
/ Key Souce-2
Segment Output
/ Key Souce-3
Segment Output
/ Key Souce-4
Display Segment
Display Segment
Display Segment
Display Segment
Display Segment
Display Segment
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Pull Down Level
Not Used
Pin In/ Signal
No. Out Name
32 11G
33 10G
34 9G
35 8G
36 7G
OUT
37 6G
38 5G
39 4G
40 3G
41 2G
42 1G
43 - VDD
44 - VSS
1-11-1
Function
Grid Output
Power Supply
GND
E5540PIN