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UPD17P228 - 4-BIT SINGLE-CHIP MICROCONTROLLER

General Description

The µPD17P228 is a model of the µPD17228 with a one-time PROM instead of an internal mask ROM.

Since the user can write programs to the µPD17P228, it is ideal for experimental production or small-scale production of the µPD17225, 17226, 17227 or 17228 systems.

Key Features

  • Pin compatible with µPD17225, 17226, 17227 and 17228 (except PROM programming function).
  • Carrier generator circuit for infrared remote controller (REM output).
  • 17K architecture: General-purpose register method.
  • Program memory (one-time PROM): 16 Kbytes (8192 × 16).
  • Data memory (RAM): 223 × 4 bits.
  • Pull-up resistor can be connected to RESET pin.
  • Low-voltage detection circuit (WDOUT output).
  • Supply voltage: VDD = 2.2 to 3.6 V.

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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 µPD17P228 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER DESCRIPTION The µPD17P228 is a model of the µPD17228 with a one-time PROM instead of an internal mask ROM. Since the user can write programs to the µPD17P228, it is ideal for experimental production or small-scale production of the µPD17225, 17226, 17227 or 17228 systems. When reading this document, also read the documents related to the µPD17225, 17226, 17227 and 17228. Detailed functions are described in the following user's manual. Read this manual when designing your system.