The 8-bit computer architecture is a microprocessor architecture that has a datapath width or a highest operand width of 8 bits or an octet. These architectures typically have a matching register file with registers width of 8 bits.

Applications

As a departure from the older 4-bit microprocessors, 8-bit CPUs were used in many military applications, instrumentation, and complex control and processing systems.

8-bit microprocessor

• Fairchild F8
• Hitachi 6309
• Intel 8008
• Intel 8080
• Intel 8085
• Mostek 5065
• Mostek 6100
• Mostek 6500
• Motorola 6800
• Motorola 6809
• National IMP-8
• National NSC800
• National SC/MP
• National SC/MP II
• NEC V20
• NEC V40
• RCA 1802
• Rockwell PPS8
• Scientific Microsystems SMS300
• Signetics 2650
• Signetics 8X300
• TI TMX1795
• WD MCP-1600
• Zilog Z80
• Zilog Z180

8-bit microcontrollers

• GI PIC1650
• Intel 2920
• Intel 8048
• Intel 8051
• Intel 8751H
• Intel 8751H-8
• Mitsubishi M37409
• Mitsubishi M58850
• Mostek 3870
• Motorola 6805
• RCA 1804
• Rockwell 6500
• Philips 7C522
• PIC16C56
• National COP820