The µPD178004, 178006, 178016 and 178018 are 8-bit single-chip CMOS microcontrollers that incorporate hardware for digital tuning systems.

The CPU uses the 78K/0 architecture and high-speed access to internal memory and control of peripheral hardware are easy to implement. Also, the instructions used are the high-speed 78K/0 instructions, suitable for system control.

The rich assortment of peripheral hardware includes an input/output port, 8-bit timer, A/D converter, serial interface, power-ON clear circuits, as well as a pre-scaler for digital tuning, a PLL frequency synthesizer and a frequency counter.

The µPD178P018, one-time PROM or EPROM versions which can be operated in the same supply voltage range as for the mask ROM versions, and various development tools, are also available.

FEATURES

• Internal high-capacity ROM and RAM

• Instruction Cycle: 0.44 µs (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 Interrupts: 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)