Casio CASSIOPEIA A-20 User Manual

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MB87A915 (Gate Array/IC3)
No. Pin Name Volt Io/Out Function To/From
1 CFCE1B 3v O CE signal for CompactFlash card CompactFlash card
2 IOPORT0 3v I/O Not used
3 IOPORT1 3v I/O I/O Port 1 LCD unit
4 VSS GND
5 V5D3 5V I/O Data bus PCMCIA CARD
6 VS1 Voltage detect for PCMCIA PCMCIA CARD
7 V5D4 5V I/O Data bus PCMCIA CARD
8 V5D11 5V I/O Data bus PCMCIA CARD
9 CD1B I PCMCIA CARD detect PCMCIA CARD
10 V5D5 5V I/O Data bus PCMCIA CARD
11 VDD1 5V +5V source
12 V5CE2B 5V O CE2 signal for PCMCIA CARD PCMCIA CARD
13 V5D12 5V I/O Data bus PCMCIA CARD
14 V5D6 5V I/O Data bus PCMCIA CARD
15 V5D13 5V I/O Data bus PCMCIA CARD
16 V5CE1B 5V O CE1 signal for PCMCIA CARD PCMCIA CARD
17 V5A10 5V O Address bus PCMCIA CARD
18 V5OEB 5V O OE signal for PCMCIA CARD PCMCIA CARD
19 V5A11 5V O Address bus PCMCIA CARD
20 VSS GND
21 VDD1 5V +5V source
22 VSS GND
23 V5IORDB 5V O IORD signal for PCMCIA CARD PCMCIA CARD
24 V5A9 5V O Address bus PCMCIA CARD
25 V5IOWRB 5V O IOWR signal for PCMCIA CARD PCMCIA CARD
26 V5A8 5V O Address bus PCMCIA CARD
27 V5A17 5V O Address bus PCMCIA CARD
28 V5A13 5V O Address bus PCMCIA CARD
29 V5A18 5V O Address bus PCMCIA CARD
30 V5A14 5V O Address bus PCMCIA CARD
31 VDD1 5V +5V source
32 V5A19 5V O Address bus PCMCIA CARD
33 V5WEB 5V O WE signal for PCMCIA CARD PCMCIA CARD
34 V5A20 5V O Address bus PCMCIA CARD
35 V5A21 5V O Address bus PCMCIA CARD
36 V5A16 5V O Address bus PCMCIA CARD
37 VSS GND
38 V5A22 5V O Address bus PCMCIA CARD
39 V5A15 5V O Address bus PCMCIA CARD
40 VDD1 5V +5V source
41 V5A23 5V O Address bus PCMCIA CARD
42 V5A12 5V O Address bus PCMCIA CARD
43 V5A24 5V O Address bus PCMCIA CARD
44 V5A7 5V O Address bus PCMCIA CARD
45 VDD1 5V +5V source
46 VSS GND
47 V5A25 5V O Address bus PCMCIA CARD
48 V5A6 5V O Address bus PCMCIA CARD
49 V5A5 5V O Address bus PCMCIA CARD
50 V5RESET 5V O Reset signal for PCMCIA CARD PCMCIA CARD
51 V5A4 5V O Address bus PCMCIA CARD
52 V5A3 5V O Address bus PCMCIA CARD
53 V5A2 5V O Address bus PCMCIA CARD
54 V5REGB 5V O
Attribute memor
y
select
PCMCIA CARD
55 VDD1 5V +5V source
56 V5D7 5V I/O Data bus PCMCIA CARD
57 V5D14 5V I/O Data bus PCMCIA CARD
58 V5A1 5V O Address bus PCMCIA CARD
59 V5D15 5V I/O Data bus PCMCIA CARD

Casio CASSIOPEIA A-20 Specifications

General

Brand	Casio
Model	CASSIOPEIA A-20
Category	Handhelds
Language	English