Casio ZD-3 Service Manual page 58

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