Fabricant inconnu

SEGA SG1000

HARDWARE DESCRIPTION | Hardware : Z80A @ 3.579545 MHz | Sound Chip : SN76489 @ 3.579545 MHz (PSG sound) | Graphics Chip : TMS9928 @ 3.57954 MHz | Other System Information; | 8255 for I/O port work | 3 Eproms for program and graphics | TMM2064 for program RAM | 8 8118 dynamic RAMs for the graphics | 74LS139 and 74LS32 for logic gating | ULN2003 for coin counter output | 7808 voltage regulator to a transistorized circuit for TV output | secondary crystal, numbers unknown for the TMS9928 | Notes : Hardware is based on Sega's SG-1000 console