C64 Cartridge Expansion pinout

motherboard connector

Pin	Name	Description
1	GND	Ground
2	+5V	+5 Volts DC
3	+5V	+5 Volts DC
4	/IRQ	Interrupt Request
5	/CR/W
6	DOTCLK	Dot Clock
7	I/O 1
8	/GAME	Game
9	/EXROM
10	I/O 2
11	/ROML	ROM Low
12	BA
13	/DMA
14	CD7	Cartridge Data 7
15	CD6	Cartridge Data 7
16	CD5	Cartridge Data 7
17	CD4	Cartridge Data 7
18	CD3	Cartridge Data 7
19	CD2	Cartridge Data 7
20	CD1	Cartridge Data 7
21	CD0	Cartridge Data 7
22	GND	Ground

A	GND	Ground
B	/ROMH	ROM High
C	/RESET	Reset
D	/NMI	Non Maskable Interrupt
E	S02
F	CA15	Cartridge Address 15
H	CA14	Cartridge Address 14
J	CA13	Cartridge Address 13
K	CA12	Cartridge Address 12
L	CA11	Cartridge Address 11
M	CA10	Cartridge Address 10
N	CA9	Cartridge Address 9
P	CA8	Cartridge Address 8
R	CA7	Cartridge Address 7
S	CA6	Cartridge Address 6
T	CA5	Cartridge Address 5
U	CA4	Cartridge Address 4
V	CA3	Cartridge Address 3
W	CA2	Cartridge Address 2
X	CA1	Cartridge Address 1
Y	CA0	Cartridge Address 0
Z	GND	Ground

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Pinouts.ru > Motherboard connectors pinouts > Pinout of C64 Cartridge Expansion and layout of connector	Document status:	unknown
Source(s) of this and additional information: Commodore 64 Programmer"s Reference Guide, from Hardware Book, Arwin Vosselman	0 reports
Last updated at Sat Jun 25 2005. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

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