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UPD75P308 - 4-BIT SINGLE-CHIP MICROCOMPUTER

General Description

The µPD75P308 is a model of the µPD75308 equipped with a one-time PROM or EPROM instead of an internal mask ROM.

Two types are available as the µ PD75P308.

Key Features

  • µ PD75308 compatible Memory capacity.
  • Program memory (PROM): 8064 x 8 bits.
  • Data memory (RAM): 512 x 4 bits.
  • Can be connected to a pull-up resistor through software: Ports 0-3, 6, 7 Open-drain input/output: Ports 4 and 5 Single power source: 5V ± 5%.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DATA SHEET MOS INTEGRATED CIRCUIT µPD75P308 4-BIT SINGLE-CHIP MICROCOMPUTER DESCRIPTION The µPD75P308 is a model of the µPD75308 equipped with a one-time PROM or EPROM instead of an internal mask ROM. Two types are available as the µ PD75P308. The one-time PROM type is ideal for production of a small quantity of many different types of application systems as data can only be written once to the one-time PROM of this type. Programs can be written and rewritten to the built-in EPROM type making it ideal for system evaluation. Detailed functions are described in the followig user's manual. Be sure to read it for designing.