Game Pak

Nintendo 64 Game Pak (part number NUS-006) is the brand name of the consumer ROM cartridge product that stores game data for the Nintendo 64, released in 1996. As with Nintendo's previous consoles, the Game Pak's design tradeoffs were intended to achieve maximal system speed and minimal base console cost, with a lesser storage space and a higher unit cost per game. Integrating a CD-ROM drive, with its expensive and slow moving parts, would have drastically increased the console's base price and reduced its performance.

See ROM header for the standard header contents found in every Game Pak ROM.

Connector Pinout

Name	Pin		Pin	Name
GND	1		26	GND
GND	2		27	GND
AD15	3		28	AD0
AD14	4		29	AD1
AD13	5		30	AD2
GND	6		31	GND
AD12	7		32	AD3
/WR	8		33	ALE_L
3.3V	9		34	3.3V
/RD	10		35	ALE_H
AD11	11		36	AD4
AD10	12		37	AD5
12V	13		38	12V
12V	14		39	12V
AD9	15		40	AD6
AD8	16		41	AD7
3.3V	17		42	3.3V
CIC_15	18		43	CIC_14
1.95MHz_CLK	19		44	/INT1
/ColdReset	20		45	/NMI
EEPROM_DAT	21		46	VIDEO_SYNC
GND	22		47	GND
GND	23		48	GND
LAUDIO	24		49	RAUDIO
GND	25		50	GND

Notes

• Pins 14 & 39 on the cartridge connector are missing contacts, thus these pins only apply to the EXT connector on the bottom of the console.
• Pin 18 is bi-directional data between the CIC and PIF.
• Pin 19 is a ~1.95 MHz clock driven by the PIF, used for both the CIC's CPU clock (pin 11) and EEPROM communication.
• Pin 21 is PIF Channel 5, via PIF pins 23 & 24.
• Pin 43 is the clock associated with pin 18's data, and is always driven by the PIF. It only pulses when the PIF needs to send or receive data.