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UPD75238 Datasheet 4-BIT MICROCOMPUTER

Manufacturer: NEC (now Renesas Electronics)

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Overview

DATA SHEET MOS INTEGRATED CIRCUIT ELECTRON DEVICE µPD75238 4 BIT SINGLE-CHIP MICROCOMPUTER The µPD75238 is a single-chip microcomputer which contains a CPU capable of 1-, 4-, and 8-bit data processing, ROM, RAM, and I/O ports.

In addition, it contains a fluorescent display tube (FIP;) controller/driver, A/D converter, clock timer, timer/pulse generator capable of 14-bit PWM output, serial interface, and vectored interrupt function.

In comparison with the µ PD75217, the µPD75238 has larger ROM and RAM capacity and has been enhanced in such peripheral facilities as the display function of the FIP controller/driver, I/O ports, A/D converter, serial interface.

Key Features

  • Mass-storage built-in ROM and RAM.
  • Program memory (ROM) : 32K × 8.
  • Data memory (RAM) to FIP) : 1K × 4.
  • I/O port: 64 lines (excluding pins dedicated.
  • Minimum instruction execution time: 0.67 µs (at 6.0 MHz).
  • 8-bit A/D converter: 8 channels Enhanced timer/counter function: 5 channels 8-bit serial interface: 2 channels.

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