PCA9673PW - NXP

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

PCA9673PW
Manufacturer

NXP
ChipWorker Part#

CW160930727
Package

SOT-355
Description

I2C GPIO Expander 5.5V 24Pin TSSOP
Documentation

Datasheet

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PCA9673PW Specifications

Attribute	Attribute Value

Part Number	PCA9673PW
Manufacturer	NXP
ChipWorker Part#	CW160930727
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	SOT-355
	expand all
Product Lifecycle Status	Unknown
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

Overview
The PCA9673 provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I²C-bus) and is a part of the Fast-mode Plus family.
The PCA9673 is a drop in upgrade for the PCF8575 providing higher Fast-mode Plus (Fm+) I²C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM dimming of LEDs, higher I²C-bus drive (30 mA versus 3 mA) so that many more devices can be on the bus without the need for bus buffers, higher total package sink capacity (400 mA versus 100 mA) that supports having all 25 mA LEDs on at the same time and more device addresses (16 versus 8) are available to allow many more devices on the bus without address conflicts.
The difference between the PCA9673 and the PCF8575 is that the A2 address pin is replaced by a RESET input on the PCA9673.
The device consists of a 16-bit quasi-bidirectional port and an I²C-bus interface. The PCA9673 has a low current consumption and includes latched outputs with 25 mA high current drive capability for directly driving LEDs.
It also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I²C-bus.
The internal Power-On Reset (POR), hardware reset pin (RESET) or software reset sequence initializes the I/Os as inputs.
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## Features
* 1 MHz I²C-bus interface
* Compliant with the I²C-bus Fast and Standard modes
* SDA with 30 mA sink capability for 4000 pF buses
* 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
* 16-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 400 mA
* Active LOW open-drain interrupt output
* 16 programmable slave addresses using 2 address pins
* Readable device ID (manufacturer, device type, and revision)
* Low standby current
* -40 °C to +85 °C operation
* ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
* Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
* Packages offered: SO24, TSSOP24, HVQFN24, DHVQFN24
## Target Applications
* LED signs and displays
* Servers
* Industrial control
* Medical equipment
* PLCs
* Cellular telephones
* Gaming machines
* Instrumentation and test measurement
## Features

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