Motorola 14500B

processor (MC14500B) A 1-bit ICU from Motorola.

Probably the limit in small processors, the 14500B had a 4-bit

instruction and controlled a single data read/write line, used

for application control. It had no address bus - that was an

external unit that was added on. Another CPU could be used

to feed control instructions to the 14500B in an application.

It had only 16 pins, less than a typical RAM chip, and ran

at 1 MHz.

(1994-11-30)