Overview

Description

The R2A20150NP/SA is a CMOS 8-bit I/O expander, which has serial to parallel and parallel to serial data converting functions. It can communicate with a microcontroller via few wiring thanks to the adoption of the 2-wire I²C BUS. Maximum 8 ICs can be connected to a bus by using 3-chip select pins, so that it is possible to handle up to 64 bits data.

Features

  • Simple 2-wire (SCL and SDA) communication with a microcontroller.
  • 8-bit data conversion between serial and parallel by I²C BUS.
  • Corresponds to Fast mode (400kHz) of I²C BUS specification.
  • Possible to set input and output each bit separately.
  • By using three chip select pins (CS0,CS1,CS2), R2A20150 can connect with the same BUS line to maximum 8 pieces.
  • Very small package line-up QFN-16 and TSSOP-16.

Comparison

Applications

Documentation

Type Title Date
Datasheet PDF 377 KB 日本語
End Of Life Notice PDF 2.17 MB 日本語
2 items

Design & Development

Models