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intel/mcs-4/4004
The Intel 4004 was the first commercially available microprocessor in history released by Intel Corporation in 1971. The 4004 was a 4-bit CPU designed for use in the Busicom 141-PF printing calculator[1]. The chip, which clocked at 740 KHz, employed a 10µm[2] process silicon-gate, capable of executing 92,000 instructions per second. The chip was capable of accessing 4KB of program memory and 640 bytes of RAM. The 4004 was part of the Intel MCS4 system.
The microprocessor had a limited architecture such as only 3-levels deep stack, a complex memory access scheme, and no interrupt support.
References
Facts about "4004 - Intel"
base frequency | 0.5 MHz (5.0e-4 GHz, 500 kHz) + and 0.74 MHz (7.4e-4 GHz, 740 kHz) + |
chipset | 4001 +, 4002 + and 4003 + |
core count | 1 + |
core voltage | 15 V (150 dV, 1,500 cV, 15,000 mV) + |
core voltage tolerance | 5% + |
designer | Intel +, Ted Hoff +, Federico Faggin +, Stan Mazor + and Masatoshi Shim + |
die area | 12 mm² (0.0186 in², 0.12 cm², 12,000,000 µm²) + |
die length | 4 mm (0.4 cm, 0.157 in, 4,000 µm) + |
die width | 3 mm (0.3 cm, 0.118 in, 3,000 µm) + |
family | MCS-4 + |
first announced | November 15, 1971 + |
first launched | December 1971 + |
full page name | intel/mcs-4/4004 + |
instance of | microprocessor + |
isa | 4004 + |
isa family | 4004 + |
last order | 1982 + |
ldate | December 1971 + |
main image | ![]() |
main image caption | 4004 in CerDIP + |
manufacturer | Intel + |
market segment | Commercial + and Industrial + |
max ambient temperature | 343.15 K (70 °C, 158 °F, 617.67 °R) + |
max memory address | 4 kB + |
max storage temperature | 398.15 K (125 °C, 257 °F, 716.67 °R) + |
microarchitecture | 4004 + |
min ambient temperature | 273.15 K (0 °C, 32 °F, 491.67 °R) + |
min storage temperature | 218.15 K (-55 °C, -67 °F, 392.67 °R) + |
model number | 4004 + |
name | 4004 + |
part number | C4004 +, D4004 + and P4004 + |
power dissipation | 1 W (1,000 mW, 0.00134 hp, 0.001 kW) + |
process | 10,000 nm (10 μm, 0.01 mm) + |
series | MCS + |
technology | pMOS + |
thread count | 1 + |
transistor count | 2,250 + |
word size | 4 bit (0.5 octets, 1 nibbles) + |