Atari Connection Machine
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Atari Portfolio connectors pinout

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Atari Portfolio Credit Card memory

32 pin 1 side slot

32 pin 1 side slot
1 A16
2 A15
3 VBB battery Ucc
4 A12
5 A7
6 A6
7 A5
8 A4
9 A3
10 A2
11 A1
12 A0
13 D0
14 D1
15 D2
16 GND ground
17 D3
18 D4
19 D5
20 D6
21 D7
22 CE
23 A10
24 OE
25 A11
26 A9
27 A8
28 A13
29 A14
30 WE
31 Vcc +5V
32 CDET presence detection

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