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PCA9674D - Remote 8-bit I/O expander

Download the PCA9674D datasheet PDF (PCA9674 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for remote 8-bit i/o expander.

Description

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

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.

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Full PDF Text Transcription

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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.
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