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R2A20150SA - 8-bit I/O Expander

Download the R2A20150SA datasheet PDF. This datasheet also covers the R2A20150NP variant, as both devices belong to the same 8-bit i/o expander family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

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

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
New Product R2A20150NP/SA 8-bit I/O Expander for I2C BUS (Corresponds to Fast mode) R03DS0012EJ0100 Rev.1.00 2011.09.05 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.
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