Atari 5200:Connector Pinouts

Cartridge Port

Note: Pins 1 through 18 are at the front and numbered from left to right. Pins 19 through 36 are at the back and numbered from right to left.

Pin #	Description
1	D0
2	D1
3	D2
4	D3
5	D4
6	D5
7	D6
8	D7
9	Y1 (Cartridge Address 1)
10	Y2 (Cartridge Address 2)
11	Not Connected
12	Ground
13	Ground
14	Ground
15	A6
16	A5
17	A2
18	Cartridge Interlock
19	A0
20	A1
21	A3
22	A4
23	Shield Ground
24	Ground (4-port) / Video In (2-port)
25	Ground
26	Unregulated DC Voltage
27	A7
28	Not Connected
29	A8
30	Not Connected (4-port) / Audio In (2-port)
31	A9
32	A13
33	A10
34	A12
35	A11
36	Cartridge Interlock

Controller Port

Note: Female is connector at the console. Male is connector at the controller. Diagram pictured is of the connector at the controller end.

Pin #	Description	Wire Color
1	Column Data (Right Keypad Column)	Gray
2	Column Data (Middle Keypad Column)	White
3	Column Data (Left Keypad Column)	Orange
4	Auxiliary Keypad Column	Orange and White
5	Row Data (Keypad Row 3)	Blue
6	Row Data (Keypad Row 2)	Violet
7	Row Data (Keypad Row 1)	Red and White
8	Row Data (Keypad Row 4)	Green
9	Potentiometer Voltage (+CAV)	Black
10	Potentiometer X Axis	Brown
11	Potentiometer Y Axis	Red
12	Unused	N/A
13	Bottom Fire Button	Yellow
14	Top Fire Button	Green and White
15	Ground	Orange

Expansion Port

Note: Pins 1 through 18 are at the top and numbered from left to right. Pins 19 through 36 are at the bottom and numbered from right to left.

Pin #	Description
1	5V (VCC)
2	Not Connected (4-port) / Audio Out (2-port)
3	Ground
4	WE (Write Enable)
5	CS0
6	D6
7	D4
8	D2
9	D0
10	IRQ
11	Ground
12	Data In
13	Clock In
14	Clock Out
15	Data Out
16	Audio Input
17	A14
18	System Clock
19	A11
20	A7
21	A6
22	A5
23	A4
24	A3
25	A2
26	A1
27	A0
28	Ground
29	D1
30	D3
31	D5
32	D7
33	Not Connected
34	Ground
35	Not Connected
36	5V (VCC)