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DATA SHEET

2000

MOS INTEGRATED CIRCUIT

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.

µPD172×× Series User's Manual: U12795E

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)

•

µs)

µs)

APPLICATIONS

Preset remote controllers, toys, and portable systems

ORDERING INFORMATION

Part Number

Package

µPD17P228MC-5A4

30-pin plastic SSOP (7.62 mm (300))

Document No. U14542EJ1V0DS00 (1st edition)

Date Published April 2000 N CP(K)

Printed in Japan

4-BIT SINGLE-CHIP MICROCONTROLLER

FOR SMALL GENERAL-PURPOSE INFRARED

REMOTE CONTROLLER

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for availability

and additional information.