Game Gear:Connector Pinouts

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Game Cartridge

Pinout sourced from GameSX.

Pin Name Description Pin Name Description
01 +34(V) Liquid drive 24 MREQ Memory Request
02 +5(V) +5(V) 25 A10/TPR2 Address
03 /WR Write signal 26 /RD Read signal
04 A12 Address 27 /EXM 2 0~7FFFH
05 A7/CL1B3 Address 28 A15 Address
06 A6/CL1A2 Address 29 A11 Address
07 A5/CL1B2 Address 30 A9/TPR1 Address
08 A4/CL1A1 Address 31 A8/CLIA3 Address
09 A3/CL1B1 Address 32 A13 Address
10 A2/DW Address 33 A14 Address
11 A1/DO3 Address 34 /EXM1 8000~BFFFH
12 A0/D01 Address 35 +5v +5 volts
13 D0/DB Data 36 /M1 M1 cycle
14 D1/P3 Data 37 IORQ I/O request
15 D2/P2 Data 38 /RFSH Refresh
16 GND D Ground 39 /RESET Reset
17 GND A Ground 40 CCLK Clock
18 GND D Ground 41 GND Ground
19 D3/P4 Data 42 /GG MS/GG
20 D4/P1 Data 43 /TV TV cart
21 D5/CL2 Data 44 TVSNDR TV right audio
22 D6/DO2 Data 45 TVSNDL TV left audio
23 D7/DO4 Data