Motorola 6800 family

The M6800 Microcomputer System (latter dubbed the Motorola 6800 family, M6800 family, or 68xx)^[1][2] was a series of 8-bit microprocessors and microcontrollers from Motorola that began with the 6800 CPU. The architecture also inspired the MOS Technology 6502, and that company started in the microprocessor business producing 6800 replacements.

An early advertisement for the Motorola's M6800 family microcomputer system

The chips primarily competed against Intel's 8-bit family of chips (such as the 8080, or their relations, the Zilog Z80 range).

• Motorola 6800
• Motorola 6801 (includes RAM and ROM)^[3]
• Motorola 6802 (includes RAM and an internal clock oscillator)
• Motorola 6803 (includes RAM)^[3]
• Motorola 6805
• Motorola 6808 (6802 that had failed production test of its internal RAM; Its RAM enable pin was designated GND)
• Motorola 6809
• Hitachi 6301 used in the Psion Organiser I
• Hitachi HD6303 used in the Psion Organiser II, Yamaha's KX88 MIDI keyboard and Yamaha DX7 synthesizer and Roland TR-707 drum machine
• Hitachi 6309
• Motorola 68HC05
• Freescale 68HC08
• Freescale 68HC11
• Freescale 68HC12 (16-bit)
• Motorola 68HC16 (16-bit)

See also

• Instruction set