Casio ZD-3 Service Manual page 58

Md cd system
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IC950: EOC62A3BF1N
54
36
55
60
1
5
6
23
OSC1
55
OSC2
56
COM0
3
COM1
4
COM2
5
COM3
6
SEG0
7
32
SEG25
V
DD
54
V
57
D1
53
V
SS
V
1
C1
V
2
C2
V
60
C3
CA
58
CB
59
35
30
29
24
ROM
1,536 words x 12 bits
Core CPU E0C6200B
OSC
RAM
96 words x
4 bits
LCD Driver
26 SEG x 4 COM
Power
Controller
Clock
Timer
Stopwatch
Timer
System Reset
Control
Interrupt
Generator
Input Port
I/O Port
Serial Interface
Output Port
FOUT
& Buzzer
56
RESET
43
44
K00
47 K03
33
TEST
37 P00
36
P01
35
P02
34
P03
48 R00
R01
49
50
R02
51 R03

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