Computer architecture bit widths |
---|
Bit |
Application |
|
Manufacturer | Processor | Year | Comment |
---|---|---|---|
Intel | 8008 | 1972 | Datapoint 2200 compatible |
Signetics | 2650 | 1973 | |
Intel | 8080 | 1974 | 8008 source compatible |
Motorola | 6800 | 1974 | |
Fairchild | F8 | 1975 | |
MOS | 6502 | 1975 | Similar to 6800, but incompatible |
Microchip | PIC | 1975 | Harvard architecture microcontroller |
Electronic Arrays | EA9002 | 1976 | 8-bit data, 12-bit addressing |
RCA | 1802 | 1976 | |
Zilog | Z80 | 1976 | 8080 binary compatible |
Intel | 8085 | 1977 | 8080 binary compatible |
Zilog | Z8 | 1978 | Harvard architecture microcontroller |
Motorola | 6809 | 1978 | 6800 source compatible |
Intel | 8051 | 1980 | Harvard architecture microcontroller |
Motorola | 68008 | 1982 | 32-bit registers, 20-bit or 22-bit addressing, three 16-bit ALUs, 8-bit data bus; Motorola 68000 software-compatible, 6809 hardware-compatible |
MOS | 6510 | 1982 | Enhanced 6502 custom-made for use in the Commodore 64 |
Ricoh | 2A03 | 1982 | 6502 clone minus BCD instructions for the Nintendo Entertainment System |
Zilog | Z180 | 1985 | Z80 binary compatible |
Motorola | 68HC11 | 1985 | |
Atmel | AVR | 1996 | |
Zilog | EZ80 | 1999 | Z80 binary compatible |
Infineon | XC800 | 2005 | |
Freescale | 68HC08 | ||
Hudson | HuC6280 | 65C02 binary compatible | |
Motorola | 6803 | ||
NEC | 78K0[2] |