• Instruction execution time • Many interrupts
1.78 ms (with fX = 4.5-MHz crystal oscillator) External : 6 sources
• PLL frequency synthesizer Internal : 6 sources
Dual modulus prescaler (130 MHz MAX.), • Power-ON reset, CE reset, and power failure
programmable divider, phase comparator, charge detection circuit
pump • Supply voltage: VDD = 5 V ± 10 %
• Abundant peripheral hardware units
General-purpose I/O ports, serial interfaces, A/D
converter, D/A converter (PWM output), BEEP
output, frequency counter