Motorola MC14500B
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The Motorola MC14500B Industrial Control Unit (ICU) is a CMOS one-bit microprocessor designed for simple control applications. It is well-suited to the implementation of ladder logic, and thus could be used to replace relay systems and programmable logic controllers. The MC14500B unit does not include program counter, therefore the size of supported memory is dependent on the implementation of program counter.
The ICU architecture is similar to that of the DEC PDP-14 computer.
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