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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

  1. ↑ The Story of the Intel® 4004
  2. ↑ 4004 Datasheet
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Facts about "4004 - Intel"
RDF feed
base frequency0.5 MHz (5.0e-4 GHz, 500 kHz) + and 0.74 MHz (7.4e-4 GHz, 740 kHz) +
chipset4001 +, 4002 + and 4003 +
core count1 +
core voltage15 V (150 dV, 1,500 cV, 15,000 mV) +
core voltage tolerance5% +
designerTed Hoff +, Federico Faggin +, Stan Mazor +, Intel + and Masatoshi Shim +
die area12 mm² (0.0186 in², 0.12 cm², 12,000,000 µm²) +
die length4 mm (0.4 cm, 0.157 in, 4,000 µm) +
die width3 mm (0.3 cm, 0.118 in, 3,000 µm) +
familyMCS-4 +
first announcedNovember 15, 1971 +
first launchedDecember 1971 +
full page nameintel/mcs-4/4004 +
instance ofmicroprocessor +
isa4004 +
isa family4004 +
last order1982 +
ldateDecember 1971 +
main imageFile:intel 4004 chip.jpg +
main image caption4004 in CerDIP +
manufacturerIntel +
market segmentCommercial + and Industrial +
max ambient temperature343.15 K (70 °C, 158 °F, 617.67 °R) +
max memory address4 kB +
max storage temperature398.15 K (125 °C, 257 °F, 716.67 °R) +
microarchitecture4004 +
min ambient temperature273.15 K (0 °C, 32 °F, 491.67 °R) +
min storage temperature218.15 K (-55 °C, -67 °F, 392.67 °R) +
model number4004 +
name4004 +
part numberC4004 +, P4004 + and D4004 +
power dissipation1 W (1,000 mW, 0.00134 hp, 0.001 kW) +
process10,000 nm (10 μm, 0.01 mm) +
seriesMCS +
technologypMOS +
thread count1 +
transistor count2,250 +
word size4 bit (0.5 octets, 1 nibbles) +