SG-1000 - Specifications

Specifications

  • CPU: NEC 780C (clone of Zilog Z80)
    • 3.579545 MHz for NTSC, 3.546893 MHz for PAL
  • Main RAM: 16 kbit (2 kB)
  • Video RAM: 128 kbit (16 kB)
  • Video processor: Texas Instruments TMS9928A
    • 256×192 resolution
    • 32 sprites
    • 16 colors
  • Sound: Texas Instruments SN76489
    • 4-channel mono sound
    • 3 sound generators, 4 octaves each, 1 white noise generator
  • Ports:
    • 1 ROM cartridge
    • 1 DIN composite video/audio (SC-3000 only)
    • 1 RF out
    • 1-2 joystick (1 port for SG-1000, 2 for SG-1000 II and SC-3000)
    • 1 expansion parallel bus (used for SK-1100 keyboard and FM Sound Unit; (SK-1100)SG-1000 and SG-1000 II and Sega MarkIII / (FM Sound Unit)Sega MarkIII only )
    • 1 cassette (SC-3000 and SK-1100 keyboard)
    • 1 printer (SC-3000 and SK-1100 keyboard)

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