EM78P257 Overview
EM78P257A/B is an 8-bit microprocessors with low-power, high speed CMOS technology.
EM78P257 Key Features
- Operating voltage range: 2.3V~5.5V
- Operating temperature range: 0°C~70°C
- Operating frequency range: (Base on 2 clocks)
- Crystal mode: DC ~ 20MHz/2clks,5V; DC ~ 8MHz/2clks,3V
- RC mode: DC ~ 4MHz/2clks,5V; DC ~ 4MHz/2clks,3V
- Low power consumption
- less then 1.5 mA at 5V/4MHz
- typical of 15 µ A, at 3V/32KHz
- typical of 1 µ A, during the sleep mode
- Built-in RC oscillator(4MHz,1MHz,455KHz,32.768KHz)