M34556G8HFP - SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
The 4556 Group is a 4-bit single-chip microcomputer designed with CMOS technology.
Its CPU is that of the 4500 series using a simple, high-speed instruction set.
The computer is equipped with two 8-bit timers (each timer has one or two reload registers), a 16bit timer for clock count, interrupts, an
M34556G8HFP Features
* qMinimum instruction execution time Mask ROM version 0.5 µs (at 6 MHz oscillation frequency, in high-speed through-mode) One Time PROM version 0.68 µs (at 4.4 MHz oscillation frequency, in high-speed through-mode) qSupply voltage Mask ROM version 1.8 to 5.5 V One Time PROM version 1.8 to 3.6 V (
