Intel 8080


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Intel 8080

(processor)
The successor to the Intel 8008. The 8080 had a 16-bit address bus and an 8-bit data bus. It had seven 8-bit registers (six which could also be combined as three 16-bit registers), a 16-bit stack pointer to memory which replaced the 8008's internal stack and a 16-bit program counter. It also had 256 I/O ports (so I/O devices could be connected without needing to allocate any addressing space as is required for memory mapped devices) and a signal pin that allowed the stack to occupy a separate bank of memory.

Shortly after the 8080, the Motorola 6800 was introduced.

References in periodicals archive ?
Shaking hands on this partnership represents a rare moment of harmony in an often bitter rivalry that began when AMD reverse-engineered the Intel 8080 microchip in 1975.
For instance, in 1974, the Intel 8080 microprocessor delivered one million instructions per second (1 MIPS) for $1,250.
The threat to the mainframe empire began in 1975 with the Altair 8800, a microcomputer kit featuring the Intel 8080.
This design was later improved and simplified to create the Intel 8080 in 1974.
He persuaded his bank to loan him an additional $65,000 on the strength of the promised Popular Electronics cover, and he negotiated a volume deal for Intel 8080 microprocessors--$75 apiece instead of the usual $360 each.
He also co-invented and designed the world's first microprocessor, the Intel 4004 and conceived and supervised the design of the Intel 8080, the first high-performance microprocessor.
He also co-invented and designed the world's first microprocessor, the Intel 4004, and conceived and supervised the design of the Intel 8080, the first high-performance microprocessor.
He also co-invented and designed the world's first microprocessor, the Intel 4004, and, conceived and architected the Intel 8080, the first high-performance microprocessor.
Ungermann is a pioneer of Local Area Networking and worked on breakthroughs like the Intel 8080, one of the world's first microprocessors.