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UPD17P228 Datasheet 4-bit Single-chip Microcontroller

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD17P228 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE.

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.

When reading this document, also read the documents related to the µPD17225, 17226, 17227 and 17228.

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.

UPD17P228 Distributor