Intel 8080 family

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8008
  • » 8-bit microprocessor
  • » Up to 800 KHz
  • » 16 KB memory
  • » 7-level deep stack
  • » 8 In / 24 Out ports
18-pin DIP
8080
  • » 8-bit microprocessor
  • » Up to 4 MHz
  • » 64 KB RAM
  • » Stack in RAM
  • » 256 I/O ports
40-pin DIP
6800
  • » Up to 2 MHz
  • » No I/O ports
Z80
  • » Up to 33 MHz
  • » Single voltage
  • » 8080 compatibility mode
8085
  • » 8-bit microprocessor
  • » Up to 8 MHz
  • » 64 KB RAM
  • » Single voltage
  • » On-chip peripherals
  • » 256 I/O ports
  • » 8080 object-code compatible
40-pin DIP
44-pin PLCC
Intel 8080 microprocessor is a successor to the Intel 8008 CPU. The 8080 was designed by Federico Faggin and Masatoshi Shima. Stan Mazor contributed to chip design. The work on 8080 microprocessor was started at the end of 1972, and the CPU was released in April of 1974. Original version of the 8080 had a flaw - it could only drive low-power TTL devices. After the flaw was discovered Intel released updated version of the CPU - 8080A, which could drive standard TTL devices.

The Intel 8080/8080A was not object-code compatible with the 8008, but it was source-code compatible with it. The 8080 CPU had the same interrupt processing logic as the 8008, which made porting of old applications easier. Maximum memory size on the Intel 8080 was increased from 16 KB to 64 KB. The number of I/O ports was increased to 256. In addition to all 8008 instructions and addressing modes the 8080 processor included many new instructions and direct addressing mode. The 8080 also included new Stack Pointer (SP) register. The SP was used to specify position of external stack in CPU memory, and the stack could grow as large as the size of memory. Thus, the CPU was no longer limited to 7-level internal stack, like the 8008 did.

The Intel 8080 microprocessor was very popular and was second-sourced by many manufacturers. Clones of the 8080 processor were made in USSR, Poland, CSSR, Hungary and Romania.

Computers
Altair 8800, IMSAI 8080, CompuColor II, Byte Computers Byt-8

Die pictures:
Use the filter below to display manufacturers that have specific feature(s) incorporated:

List of 8080 manufacturers

AMD C8080

First AMD 8080-compatible microprocessors were reverse-engineered versions of Intel 8080A. These processors received part number 9080A, had enhanced electrical characteristics and lower power dissipation than original Intel parts. First samples of 9080A were shipped in the middle of 1975, and full production started in September - October 1975. In 1976 AMD signed cross-license agreement with Intel, which gave AMD status of authorized second-source company. AMD manufactured full line of 8080 microprocessors in plastic and ceramic packages, in 4 speed grades - from 2 MHz to 4 MHz, and operating in commercial, industrial and military temperature ranges.

Picture of: AMD C8080

Intel 8080A

2 MHz
40-pin ceramic DIP
White ceramic/gold top/gold pins

Customer sample
No "C" prefix

Picture of: Intel 8080A

Mitsubishi M5L8080AP

2 MHz
40-pin plastic DIP

Picture of: Mitsubishi M5L8080AP

National Semiconductor INS8080AD

2 MHz
40-pin ceramic DIP
White ceramic/gold top/gold pins

Picture of: National Semiconductor INS8080AD

NEC D8080A

2 MHz
40-pin ceramic DIP
White ceramic/silver top/gold pins

Picture of: NEC D8080A

NTE NTE8080A

2 MHz
40-pin plastic DIP
Remarked National Semiconductor 8080 processor

Picture of: NTE NTE8080A

OKI MSM8080A

2 MHz
40-pin side-brazed ceramic DIP
White ceramic/gold lid/gold pins

Picture of: OKI MSM8080A

Poland MCY7880

40-pin plastic DIP

Polish clone of Intel 8080 processor

Picture of: Poland MCY7880

Siemens SAB8080A-C

2 MHz
40-pin ceramic DIP
White ceramic/silver top/tin pins

Picture of: Siemens SAB8080A-C

Signetics MP8080AI

2 MHz
40-pin ceramic DIP
White ceramic/black top/tin pins

Picture of: Signetics MP8080AI

Texas Instruments TMS8080JL

40-pin ceramic DIP
White ceramic/gold lid/gold pins

Picture of: Texas Instruments TMS8080JL

Tesla MHB8080A

40-pin plastic DIP

Czechoslovakian clone of Intel 8080A processor.

Picture of: Tesla MHB8080A

Toshiba TMP9080AP

2 MHz
40-pin plastic DIP

Picture of: Toshiba TMP9080AP

USSR 580VM80

2 MHz
40-pin ceramic DIP
White ceramic/silver top/gold pins

Soviet clone of Intel 8080 processor. Manufactured by "Qvazar" plant.

Picture of: USSR 580VM80

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At a glance

Type:
8-bit microprocessor
Introduction:
1974
Technology (micron):
6
Frequency (MHz):
2 - 4
Sockets:
DIP40