UPD17P228 Datasheet, PDF (1/28 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER

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.
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)
• Supply voltage: VDD = 2.2 to 3.6 V (fx = 4 MHz: high-speed mode, 4 µs)
VDD = 3.0 to 3.6 V (fx = 8 MHz: high-speed mode, 2 µs)
APPLICATIONS
Preset remote controllers, toys, and portable systems
ORDERING INFORMATION
Part Number
µPD17P228MC-5A4
Package
30-pin plastic SSOP (7.62 mm (300))
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.
Document No. U14542EJ1V0DS00 (1st edition)
Date Published April 2000 N CP(K)
Printed in Japan
©
2000