PCAL9554CPW,118 datasheet, PDF

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PCAL9554CPW,118: DescriptionIC gpio expander 16tssop; Categorysemiconductor Analog mixed-signal IC; File Size3MB，42 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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PCAL9554CPW,118 Overview

IC gpio expander 16tssop

PCAL9554CPW,118 Parametric

Parameter Name	Attribute value
Datasheets
PCAL9554B/C
Product Photos
16-TSSOP
Product Training Modules
Introduction to GPIO Expanders
Video File
Low-voltage I2C Agile I/O expanders from NXP
Featured Produc
Agile I/O GPIO Expander Family
Standard Package	1
Category	Integrated Circuits (ICs)
Family	Interface - I/O Expanders
Packaging	Digi-Reel®
Number of I/O	8
Interface	I²C, SMBus
Interrupt Outpu	Yes
Features	POR
Output Type	Open Drain, Push-Pull
Current - Output Source/Sink	10mA, 25mA
Frequency - Clock	400kHz
Voltage - Supply	1.65 V ~ 5.5 V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mou
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package	16-TSSOP
Dynamic Catalog	I/O Expanders
Other Names	568-11451-6568-11451-6-ND568-9927-6

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PCAL9554B; PCAL9554C

Low-voltage 8-bit I

C-bus and SMBus low power I/O port with

interrupt, weak pull-up and Agile I/O

Rev. 3 — 5 August 2013

Product data sheet

1. General description

The PCAL9554B and PCAL9554C are a low-voltage 8-bit General Purpose Input/Output

(GPIO) expanders with interrupt and weak pull-up for I

C-bus/SMBus applications. The

only difference between the PCAL9554B and PCAL9554C is their I

C-bus fixed address,

allowing a larger number of the same device on the I

C-bus with no chance of address

conflicts. NXP I/O expanders provide a simple solution when additional I/Os are needed

while keeping interconnections to a minimum, for example, in ACPI power switches,

sensors, push buttons, LEDs, fan control, etc.

In addition to providing a flexible set of GPIOs, the wide V

range of 1.65 V to 5.5 V

allows the PCAL9554B/PCAL9554C to interface with next-generation microprocessors

and microcontrollers where supply levels are dropping down to conserve power.

The PCAL9554B/PCAL9554C contains the PCA9554A register set of four 8-bit

Configuration, Input, Output, and Polarity Inversion registers, and additionally, the

PCAL9554B/PCAL9554C has Agile I/O, which are additional features specifically

designed to enhance the I/O. These additional features are: programmable output drive

strength, latchable inputs, programmable pull-up/pull-down resistors, maskable interrupt,

interrupt status register, programmable open-drain or push-pull outputs.

The PCAL9554B is a pin-for-pin replacement for the PCA9554, while the PCAL9554C

replaces the PCA9554A, however both versions power-up with all I/O interrupted masked.

This mask default allows for a board bring-up free of spurious interrupts at power-up.

The PCAL9554B/PCAL9554C open-drain interrupt (INT) output is activated when any

input state differs from its corresponding Input Port register state and is used to indicate to

the system master that an input state has changed.

INT can be connected to the interrupt input of a 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 I

C-bus. Thus, the PCAL9554B or

PCAL9554C can remain a simple slave device.

The device outputs have 25 mA sink capabilities for directly driving LEDs while consuming

low device current.

Three hardware pins (A0, A1, A2) select the fixed I

C-bus address and allow up to eight

devices to share the same I

C-bus/SMBus. The PCAL9554B and PCAL9554C differ only

in their base I

C-bus addresses permitting a total of 16 of the same devices on the

C-bus, minimizing the chance of address conflict, even in the most complex system.

PCAL9554CPW,118 Related Products

	PCAL9554CPW,118	PCAL9554BPW,118	PCAL9554BBS,128
Description	IC gpio expander 16tssop	IC gpio expander 16tssop	IC I/O expander 8bit 16hvqfn
Standard Package	1	2,500	6,000
Category	Integrated Circuits (ICs)	Integrated Circuits (ICs)	Integrated Circuits (ICs)
Family	Interface - I/O Expanders	Interface - I/O Expanders	Interface - I/O Expanders
Packaging	Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)
Number of I/O	8	8	8
Interface	I²C, SMBus	I²C, SMBus	I²C, SMBus
Interrupt Outpu	Yes	Yes	Yes
Features	POR	POR	POR
Output Type	Open Drain, Push-Pull	Open Drain, Push-Pull	Open Drain, Push-Pull
Current - Output Source/Sink	10mA, 25mA	10mA, 25mA	10mA, 25mA
Frequency - Clock	400kHz	400kHz	400kHz
Voltage - Supply	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mou	Surface Mou	Surface Mou
Package / Case	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)	16-VFQFN Exposed Pad
Supplier Device Package	16-TSSOP	16-TSSOP	16-HVQFN (3x3)
Dynamic Catalog	I/O Expanders	I/O Expanders	I/O Expanders
Other Names	568-11451-6568-11451-6-ND568-9927-6	568-11449-2568-11449-2-ND568-9926-2935299392118PCAL9554BPW118PCAL9554BPWJPCAL9554BPWJ-ND	568-11448-2568-11448-2-ND568-9950-2935299393128PCAL9554BBS128PCAL9554BBSHPPCAL9554BBSHP-ND

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