Atari 8-bit Cartridge

Available on Atari 400, 800 (Left Cartridge), 1200XL, 600XL, 800XL, 65XE, 130XE, 800XE and the XE Game System.

Pinout

 A  B  C  D  E  F  H  J  K  L  M  N  P  R  S
 o  o  o  o  o  o  o  o  o  o  o  o  o  o  o
 o  o  o  o  o  o  o  o  o  o  o  o  o  o  o
 1                                         15

Pin	Name	Description
1	~S4	Chip Select ($8000 to $9FFF)
2	A3	CPU Address bus line 3
3	A2	CPU Address bus line 2
4	A1	CPU Address bus line 1
5	A0	CPU Address bus line 0
6	D4	CPU Data bus line 4
7	D5	CPU Data bus line 5
8	D2	CPU Data bus line 2
9	D1	CPU Data bus line 1
10	D0	CPU Data bus line 0
11	D6	CPU Data bus line 6
12	~S5	Chip Select ($A000 to $BFFF)
13	+5V	+5 VDC
14	RD5	ROM present ($A000 to $BFFF)
15	~CCTL	Cartridge control select
A	RD4	ROM present ($8000 to $9FFF)
B	GND	Ground
C	A4	CPU Address bus line 4
D	A5	CPU Address bus line 5
E	A6	CPU Address bus line 6
F	A7	CPU Address bus line 7
H	A8	CPU Address bus line 8
J	A9	CPU Address bus line 9
K	A12	CPU Address bus line 12
L	D3	CPU Data bus line 3
M	D7	CPU Data bus line 7
N	A11	CPU Address bus line 11
P	A10	CPU Address bus line 10
R	R/~W	CPU read/write
S	B02,Phi2	CPU Phase 2 clock

Note: ~ = Active low.

Contributions

Joakim Ögren

Sources

Atari 8-Bit Computers: Frequently Asked Questions by Michael D. Current