8-BIT SINGLE-CHIP MICROCONTROLLERS The µPD178002 and 178003 are 8-bit single-chip CMOS microcontrollers that incorporate hardware for digital tuning systems. The CPU uses the 78K/0 architecture, which makes it easy to implement high-speed access to internal memory and control of peripheral hardware. Also, the instructions used are the high-speed 78K/0 instructions, suitable for system control. The 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 µPD178P018A, one-time PROM or EPROM versions that can be operated in the same supply voltage range as for the mask ROM versions, and various development tools, are also available. FEATURES • Program memory (ROM) capacity µPD178002: 16 Kbytes µPD178003: 24 Kbytes • Data memory (RAM) capacity: 512 bytes • Instruction cycle: 0.44 µs (4.5 MHz crystal resonator used) • Selected peripheral hardware of the µPD178018A Subseries General-purpose I/O ports, 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: 8 • 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) APPLICATIONS Car stereo, home stereo systems.
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