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PCA9674A - Remote 8-bit I/O expander

Download the PCA9674A datasheet PDF. This datasheet also covers the PCA9674 variant, as both devices belong to the same remote 8-bit i/o expander family and are provided as variant models within a single manufacturer datasheet.

General Description

The PCA9674/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).

Key Features

  • I2C-bus to parallel port expander.
  • 1 MHz I2C-bus interface (Fast-mode Plus I2C-bus).
  • SDA with 30 mA sink capability for 4000 pF buses.
  • Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to VDD with 100 A current source.
  • 8-bit remote I/O pins that default to inputs at power-up.
  • Latched outputs with 25 mA sink capability for directly driving LEDs.
  • Total package sink capability of 200 mA NXP Semiconductors PCA9674; PCA9674A Remote 8-bit I/O.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (PCA9674_NXPSemiconductors.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
PCA9674AD Remote 8-bit I/O expander NXP
PCA9674D Remote 8-bit I/O expander NXP
PCA9670 Remote 8-bit I/O expander NXP
PCA9670D Remote 8-bit I/O expander NXP
PCA9671 Remote 16-bit I/O expander NXP

Other Datasheets by NXP Semiconductors

Part Number Description
PCA9674 Remote 8-bit I/O expander
PCA9673 Remote 16-bit I/O expander
PCA9675 Remote 16-bit I/O expander
PCA9617A Level translating Fm I2C-bus repeater
PCA9620 Universal LCD driver

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
PCA9674; PCA9674A Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt Rev. 7 — 30 May 2013 Product data sheet 1. General description The PCA9674/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)). The devices consist of eight quasi-bidirectional ports, 1 MHz I2C-bus Fast-mode Plus (Fm+) family interface, with high speed data transfer it can support PWM dimming of LEDs, and higher I2C-bus drive 30 mA for more devices can be on the bus without the need for bus buffers. Three hardware address inputs and interrupt output operating between 2.3 V and 5.5 V.