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UPD75218 Datasheet 4-BIT MICROCOMPUTER

Manufacturer: NEC (now Renesas Electronics)

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General Description

of the functions of the µPD75218.

Be sure to read this manual when you design an application system.

µPD75218 User’s Manual: IEU-692

Overview

DATA SHEET MOS INTEGRATED CIRCUIT µPD75218 4-BIT SINGLE-CHIP MICROCOMPUTER The µPD75218 is a microcomputer with a CPU capable of 1-, 4-, and 8-bit-wise data processing, ROM, RAM, I/O ports, an FIP controller/driver, a watch timer, a timer/pulse generator capable of outputting 14-bit PWM pulses, a serial interface and a vectored interrupt function integrated on a single chip.

It is most suitable for applications which use fluorescent display tubes as display devices and require the timer/ watch function and high-speed interrupt servicing, such as VCR, CD and ECR.

It can help to provide the unit with many functions and to decrease performance costs.

Key Features

  • On-chip large-capacity ROM and RAM.
  • Program memory (ROM) : 32K × 8 bits.
  • Data memory (RAM) : 1K × 4 bits.
  • Architecture equal to that of an 8-bit microcomputer.
  • High-speed operation: Minimum instruction execution time : 0.67 µs (when the microcomputer operates at 6.0 MHz).
  • Instruction execution time variable function realizing a wide range of operating voltages.
  • On-chip programmable fluorescent indication panel (FIP) controller/drive.

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