UPD17225, UPD Datasheet - NEC

UPD17225 4-BIT SINGLE-CHIP MICROCONTROLLER

µPD17225, 17226, 17227, 17228 (hereafter called µPD17225 subseries) are 4-bit single-chip microcontrollers for small general-purpose infrared remote control transmitters. It employs a 17K architecture of general-purpose register type devices for the CPU, and can directly execute operations between m.

UPD17225 Features

* Infrared remote controller carrier generator circuit (REM output)

* 17K architecture: General-purpose register system

* Program memory (ROM), Data memory (RAM) µPD17225 Program memory (ROM) 4 K bytes (2048 × 16) Data memory (RAM) µPD17226 8 K bytes (4096 × 16) µPD17227 1

UPD-1722.pdf