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Atari 8bit family connectors pinout

• 8 bit power supply
• 8 bit video out
• Joystick
• SIO
• 8 bit cartridge
• Atari parallel bus
• ECI
• XEGS Keyboard


• Alternative SIO (AKPV)

Atari 8bit SIO

d-sub	SIO
1		Not used
2	2	Clock out
3	4	GND
4	6	GND
5	8	Motor control
6	10	+5V / Ready
7	12	not connected / Atari 400/800 +12V
8		Not used
9	1	Clock in
10	3	Data in
11	5	Data out
12	7	Command
13	9	Proceed
14	11	Audio in
15	13	Interrupt

Alternative connector for Atari 8bit SIO according to Raster from Atari club Prostejov.