PCA9672PW - NXP

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

Part No

PCA9672PW
Manufacturer

NXP
ChipWorker Part#

CW354244828
RoHS

Lead free / RoHS Compliant
Description

Interface - I/O Expanders 8Bit I2C FM+ QB GPIO INT-RS PU
Documentation

Datasheet

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PCA9672PW Specifications

Attribute	Attribute Value

Part Number	PCA9672PW
Manufacturer	NXP
ChipWorker Part#	CW354244828
Documentation	Datasheet
Mounting Style	Surface Mount
Case/Package	SOT-403
	expand all
Product Lifecycle Status	Unknown
Packaging	Tube
RoHS	RoHS Compliant

Product Description

Overview
The PCA9672 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. The system master can read from the input port or write to the output port through a single register.
The low current consumption of 2.5 μA (typical, static) is great for mobile applications and the latched output ports have 25 mA high current sink drive capability for directly driving LEDs.
The PCA9672 has two hardware address pins, allowing sixteen of each device to be on the same I²C‑bus without the need for bus buffers, so there can be supporting up to 128 I/Os (for example, 128 LEDs).
The active LOW open-drain interrupt output (INT) can be connected to the interrupt logic of the microcontroller and is activated when any input state differs from its corresponding input port register state. It is used to indicate to the microcontroller that an input state has changed and the device needs to be interrogated without the microcontroller continuously polling the input register via the I²C‑bus.
The internal Power-On Reset (POR) and active LOW hardware reset pin (RESET) initialize the I/Os as inputs with a weak internal pull-up 100 μA current source.
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## Features
* I²C-bus to parallel port expander
* 1 MHz I²C‑bus interface (Fast-mode Plus I²C-bus)
* Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to VDD with 100 μA current source
* 8-bit remote I/O pins that default to inputs at power-up
* Latched outputs with 25 mA sink capability directly drive LEDs
* Total package sink capability of 200 mA
* Active LOW reset input
* Active LOW open-drain interrupt output
* Sixteen programmable slave addresses using two address pins
* Readable device ID (manufacturer, device type, and revision)
* -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: SO16, TSSOP16, HVQFN16
## Target Applications
* LED signs and displays
* Servers
* Keypads
* Industrial control
* Medical equipment
* PLCs
* Cellular telephones
* Mobile devices
* Gaming machines
* Instrumentation and test measurement
## Features

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