FEATURES

• Internal high-capacity ROM and RAM

• Instruction Cycle: 0.44 ms (4.5-MHz crystal oscillator used)

• Large array of on-chip peripheral hardware

General-purpose input/output port, A/D converter, serial interface, timer, frequency counter, power-ON clear circuits.

• On-chip hardware for a PLL frequency synthesizer.

Dual modulus pre-scaler, programmable divider, phase comparator, charge pump.

• Vector interrupt sources: 17

• Supply Voltage: VDD = 4.5 to 5.5 V (during PLL operation)

VDD = 3.5 to 5.5 V (during CPU operation, when the system clock is fX/2 or lower)

VDD = 4.5 to 5.5 V (during CPU operation, when the system clock is fX)