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R2A20150SA Datasheet 8-bit I/O Expander

Manufacturer: Renesas

Download the R2A20150SA datasheet PDF. This datasheet also includes the R2A20150NP variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (R2A20150NP-Renesas.pdf) that lists specifications for multiple related part numbers.

General 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.

Overview

New Product R2A20150NP/SA 8-bit I/O Expander for I2C BUS (Corresponds to Fast mode) R03DS0012EJ0100 Rev.1.00 2011.09.

Key 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.

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