4004

Intel 4004 was the first commercially available single-chip microprocessor in history.

Micro Processor Name: INTEL 4004

Intel 4004 Processor

Intel 4004 Processor Architecture

Ø 4-bit microprocessor
Ø  740 KHz
Ø  92,000 single word instructions per second
Ø  4 KB program memory
Ø  640 bytes data memory (RAM)
Ø  The Intel 4004 was a part of MCS-4 chipset
Ø  3-level deep stack
Ø  No interrupts
Ø  16-pin DIP

Included the following chips:

Ø  4001 - 256-bit mask ROM and 4-bit I/O device,
Ø  4002 - 320-bit RAM and 4-bit I/O device,
Ø  4003 - 10-bit shift register,
Ø  4008 and 4009 - standard memory and I/O interface set.