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UPD178003 Datasheet 8-bit Single-chip Microcontrollers

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µ PD178002, 178003 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.

General Description

s are provided in the following user’s manuals.

Be sure to read them before designing.

µPD178003 Subseries User’s Manual: U13033E 78K/0 Series User’s Manual — Instructions: U12326E

Key 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 comparat.

UPD178003 Distributor