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PCA9670D - Remote 8-bit I/O expander

Download the PCA9670D datasheet PDF. This datasheet also covers the PCA9670 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 PCA9670 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.
  • Active LOW reset input.
  • Sixty-four programmab.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (PCA9670_PhilipsSemiconductors.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
PCA9673 Remote 16-bit I/O expander NXP Semiconductors
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PCA9674A Remote 8-bit I/O expander NXP Semiconductors
PCA9675 Remote 16-bit I/O expander NXP Semiconductors
PCA9617A Level translating Fm I2C-bus repeater NXP Semiconductors

Other Datasheets by NXP Semiconductors

Part Number Description
PCA9670 Remote 8-bit I/O expander
PCA9671 Remote 16-bit I/O expander
PCA9671D Remote 16-bit I/O expander
PCA9671PW Remote 16-bit I/O expander
PCA9672 Remote 8-bit I/O expander

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
PCA9670 Remote 8-bit I/O expander for Fm+ I2C-bus with reset Rev. 3 — 30 May 2013 Product data sheet 1. General description The PCA9670 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 30 mA drive I2C-bus interface, three hardware address inputs and a reset input operating between 2.3 V and 5.5 V. 1 MHz I2C-bus Fast-mode Plus (Fm+) can support PWM dimming of LEDs, and higher I2C-bus drive 30 mA allows more devices to be on the bus without the need for bus buffers. The quasi-bidirectional port can be independently assigned as an input to monitor interrupt status or keypads, or as an output to activate indicator devices such as LEDs.