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MC14500B - Motorola
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Motorola MC14500B
MC14500BCP.jpg
1-bit MC14500BCP
General Info
DesignerMotorola
ManufacturerMotorola
Model NumberMC14500B
Part NumberMC14500BCL,
MC14500BAL,
MC14500BCP
MarketIndustrial
Introduction1976 (announced)
1976 (launched)
General Specs
FamilyMC14500
Frequency1 MHz
Microarchitecture
TechnologyCMOS
Word Size1 bit
Electrical
Power dissipation500 mW
Vcore5 V ± 5 %
Tcase-55 °C – 125 °C
Tstorage-65 °C – 150 °C

The MC14500B or Industrial Control Unit (ICU) is a 1-bit microprocessor designed by Motorola and released in 1976. Production continued well into the 1990s. The MC14500B was designed as an extremely low cost programmable logic controller suited for implementing various ladder logic circuits as replacement for older relay-based systems.

Architecture[edit]

Main article: MC14500 Architecture

The MC14500B had a single 1-bit register to hold the result and supported 16 different operations.

Packaging[edit]

The MC14500B came in a few different packages for different specifications.

Part Temperature range
MC14500BCL Military
MC14500BAL Industrial
MC14500BCP Industrial

Documents[edit]

See also[edit]

Facts about "MC14500B - Motorola"
base frequency1 MHz (0.001 GHz, 1,000 kHz) +
core voltage5 V (50 dV, 500 cV, 5,000 mV) +
core voltage tolerance5 % +
designerMotorola +
familyMC14500 +
first announced1976 +
first launched1976 +
full page namemotorola/mc14500/mc14500b +
instance ofmicroprocessor +
ldate1976 +
main imageFile:MC14500BCP.jpg +
main image caption1-bit MC14500BCP +
manufacturerMotorola +
market segmentIndustrial +
max case temperature398.15 K (125 °C, 257 °F, 716.67 °R) +
max storage temperature423.15 K (150 °C, 302 °F, 761.67 °R) +
min case temperature218.15 K (-55 °C, -67 °F, 392.67 °R) +
min storage temperature208.15 K (-65 °C, -85 °F, 374.67 °R) +
model numberMC14500B +
nameMotorola MC14500B +
part numberMC14500BCL +, MC14500BAL + and MC14500BCP +
power dissipation0.5 W (500 mW, 6.705e-4 hp, 5.0e-4 kW) +
technologyCMOS +
word size1 bit (0.125 octets, 0.25 nibbles) +