8-bit
From bildr
In computer architecture, 8-bit integers, memory addresses, or other data units are those that are at most 8 bits (1 octet) wide. Also, 8-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size. 8-bit is also a term given to a generation of computers in which 8-bit processors were the norm.
00000000 = 0 ... 11111111 = 255
A CPU can be classified on the basis of the data it can access in a single operation. An 8-bit processor can access 8 bits of data in a single operation, as opposed to a 16-bit processor, which can access 16 bits of data in a single operation.
Examples of 8-bit processors (very incomplete)
- Intel 8008
- Intel 8080 (8008 source compatible)
- Intel 8085 (8080 binary compatible)
- Intel 8051 (Harvard architecture)
- Zilog Z80 (8080 binary compatible)
- Zilog Z180 (Z80 binary compatible)
- Zilog Z8
- Zilog eZ80 (Z80 binary compatible)
- Motorola 6800
- Motorola 6803
- Motorola 6809 (partially 6800 compatible)
- MOS Technology 6502
- Microchip PIC10
- Microchip PIC12
- Microchip PIC16
- Microchip PIC18
- Atmel AVR family microcontrollers
- NEC 78K0 series microcontrollers
References
- Wikipedia link - http://en.wikipedia.org/wiki/8-bit
This page is an Article on bildr. Articles are pages that define or explain a concept, method, or generic item.