7544 - SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7544 Features
* Basic machine-language instructions 71
* The minimum instruction execution time 0.25 µs (at 8 MHz oscillation frequency, double-speed mode for the shortest instruction)
* Memory size ROM 8 K bytes RAM 256 bytes
* Programmable I/O ports 25
* Interrupts
