Motorola M6800 microcomputer ad April 1975

The M6800 Microcomputer System (latter dubbed the Motorola 6800 family, M6800 family, or 68xx) was a series of

8-bit In computer architecture, 8-bit integers or other data units are those that are 8 bits wide (1 octet). Also, 8-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on registers or data bu ...

microprocessor A microprocessor is a computer processor (computing), processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, a ...

s and

microcontroller A microcontroller (MC, uC, or μC) or microcontroller unit (MCU) is a small computer on a single integrated circuit. A microcontroller contains one or more CPUs (processor cores) along with memory and programmable input/output peripherals. Pro ...

s from

Motorola Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois. It was founded by brothers Paul and Joseph Galvin in 1928 and had been named Motorola since 1947. Many of Motorola's products had been ...

that began with the 6800

CPU A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, log ...

. The architecture also inspired the

MOS Technology 6502 The MOS Technology 6502 (typically pronounced "sixty-five-oh-two" or "six-five-oh-two") William Mensch and the moderator both pronounce the 6502 microprocessor as ''"sixty-five-oh-two"''. is an 8-bit computing, 8-bit microprocessor that was desi ...

, and that company started in the microprocessor business producing 6800 replacements. The chips primarily competed against

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

's 8-bit family of chips (such as the

8080 The Intel 8080 is Intel's second 8-bit microprocessor. Introduced in April 1974, the 8080 was an enhanced successor to the earlier Intel 8008 microprocessor, although without binary compatibility.'' Electronic News'' was a weekly trade newspa ...

, or their relations, the

Zilog Z80 The Zilog Z80 is an 8-bit computing, 8-bit microprocessor designed by Zilog that played an important role in the evolution of early personal computing. Launched in 1976, it was designed to be Backward compatibility, software-compatible with the ...

range). *

Motorola 6800 The 6800 ("''sixty-eight hundred''") is an 8-bit microprocessor designed and first manufactured by Motorola in 1974. The MC6800 microprocessor was part of the M6800 Microcomputer System (later dubbed ''68xx'') that also included serial and parall ...

* Motorola 6801 (includes RAM and ROM)http://datasheets.chipdb.org/Motorola/mc6801_3.pdf * Motorola 6802 (includes RAM and an internal clock oscillator) * Motorola 6803 (includes RAM) * Motorola 6805 *

Motorola 6808 The 6800 ("''sixty-eight hundred''") is an 8-bit microprocessor designed and first manufactured by Motorola in 1974. The MC6800 microprocessor was part of the M6800 Microcomputer System (later dubbed ''68xx'') that also included serial and parall ...

(6802 that had failed production test of its internal RAM; Its RAM enable pin was designated GND) *

Motorola 6809 The Motorola 6809 ("''sixty-eight-oh-nine''") is an 8-bit microprocessor with some 16-bit features. It was designed by Motorola's Terry Ritter and Joel Boney and introduced in 1978. Although source compatible with the earlier Motorola 6800, the ...

* Hitachi 6301 used in the

Psion Organiser Psion Organiser was the brand name of a range of pocket computers developed by the British company Psion in the 1980s. The Organiser I (launched in 1984) and Organiser II (launched in 1986) had a characteristic hard plastic sliding cover prot ...

I * Hitachi HD6303 used in the

II,

Yamaha Yamaha may refer to: People * Torakusu Yamaha, a Japanese businessman and founder of the Yamaha Corporation Companies * Yamaha Corporation, a Japanese musical instrument and audio equipment manufacturer ** Yamaha Music Foundation, an organi ...

's KX88

MIDI keyboard A MIDI keyboard or controller keyboard is typically a piano-style electronic musical keyboard, often with other buttons, wheels and sliders, used as a MIDI controller for sending Musical Instrument Digital Interface (MIDI) commands over a USB ...

and

Yamaha DX7 The Yamaha DX7 is a synthesizer manufactured by Yamaha Corporation from 1983 to 1989. It was the first successful digital synthesizer and is one of the best-selling synthesizers in history, selling more than 200,000 units. In the early 1980s, th ...

synthesizer and

Roland TR-707 The Roland TR-707 Rhythm Composer is a drum machine released by Roland Corporation in 1985. Features The TR-707 has 15 digitally sampled sound and 10-voice polyphony. The alternate bass drum, snare, and hi-hat sounds cannot be triggered simult ...

drum machine *

Hitachi 6309 The 6309 is Hitachi's CMOS version of the Motorola 6809 microprocessor, released in late 1982. It was initially marketed as a low-power version of the 6809, without reference to its many internal improvements. While in "Emulation Mode" it is ...

Motorola 68HC05 The 68HC05 (also abbreviated as HC05) is a broad family of 8-bit microcontrollers from Motorola, Motorola Semiconductor (later Freescale Semiconductor, Freescale then NXP Semiconductors, NXP). Like all Motorola processors that share lineage from ...

Freescale 68HC08 The 68HC08 (also abbreviated as HC08) is a broad family of 8-bit microcontrollers from Motorola Semiconductor (later from Freescale then NXP). HC08's are fully code-compatible with their predecessors, the Motorola 68HC05. Like all Motorola proc ...

Freescale 68HC11 The 68HC11 (also abbreviated as 6811 or HC11) is an 8-bit microcontroller family introduced by Motorola Semiconductor in 1984 (later from Freescale then NXP). It descended from the Motorola 6800 microprocessor by way of the 6801. The 68HC11 d ...

Freescale 68HC12 The 68HC12 (also abbreviated as 6812 or HC12) is a microcontroller family from Motorola Semiconductor (later from Freescale then NXP). Originally introduced in the mid-1990s, the architecture is an enhancement of the Freescale 68HC11. Programs ...

(16-bit) *

Motorola 68HC16 The 68HC16 (also abbreviated as HC16) is a highly modular microcontroller family based on the CPU16 16-bit core from Motorola Semiconductor (later from Freescale then NXP). The CPU16 core is a true 16-bit design, with an architecture that is very f ...

(16-bit)

References

{{microcompu-stub Motorola microprocessors

See also

References