MC14500B

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Industrial Control Unit The MC14500B Industrial Control Unit (ICU) is a single–bit CMOS processor. The ICU is designed for use in systems requiring decisions based on successive single–bit information. An external ROM stores the control program. With a program counter (and output latches and input multiplexers, if required) the ICU in a system forms a stored–program controller that replaces combinatorial logic. Applications include relay logic processing, serial data manipulation and control. The ICU also may control an MPU or be controlled by an MPU. 16 Instructions DC to 1.0 MHz Operation at VDD = 5 V On–Chip Clock (Oscillator) Executes One Instruction per Clock Cycle 3 to 18 V Operation Low Quiescent Current Characteristic of CMOS Devices Capable of Driving One Low–Power Schottky Load or Two Low–Power TTL Loads over Full Temperature Range DATA 3 D C IEN X1 14 X2 13 OSC I0 7 6 I1 INST I2 5 REG 4 I3 1...