Pins are numbered left to right, cartridge label up. There is a switch in the cartridge slot used to differentiate between DMG/CGB and AGB cartridges. When the switch is activated, the pinout is the same as the Game Boy. The GBA SP uses a …
1 min readUpdated Oct 9, 2026
Cartridge
Pins are numbered left to right, cartridge label up. There is a switch in the cartridge slot used to differentiate between DMG/CGB and AGB cartridges. When the switch is activated, the pinout is the same as the Game Boy.
Pin
Function
Pin
Function
Pin
Function
Pin
Function
01
+3.3V
11
Data/Address Bit 5
21
Data/Address Bit 15
31
IRQ
02
CLOCK
12
Data/Address Bit 6
22
Address Bit 16
32
GROUND
03
WRITE
13
Data/Address Bit 7
23
Address Bit 17
04
READ
14
Data/Address Bit 8
24
Address Bit 18
05
CHIP SELECT
15
Data/Address Bit 9
25
Address Bit 19
06
Data/Address Bit 0
16
Data/Address Bit 10
26
Address Bit 20
07
Data/Address Bit 1
17
Data/Address Bit 11
27
Address Bit 21
08
Data/Address Bit 2
18
Data/Address Bit 12
28
Address Bit 22
09
Data/Address Bit 3
19
Data/Address Bit 13
29
Address Bit 23
10
Data/Address Bit 4
20
Data/Address Bit 14
30
CHIP SELECT 2
GBA SP Power / Headphone Connector
The GBA SP uses a connector which combines power delivery and audio output.
EXT.2
Pin
Name
Description
1
P31
Left Audio
2
P32
Supply 5.2v
3
P33
Right Audio
4
P34
Audio GND
5
P35
Audio Disable
6
P36
Supply GND
Link Port
GBA / GBA SP
GBA link cable pin numbering
EXT / EXT.1
Pin
Name
1
VDD
2
SO
3
SI
4
SD
5
SC
6
GND
Micro
The Game Boy Advance Micro uses a single connector for both power and link cable.
