Integrated Circuits (ICs)

PCA9554ADB

Obsolete

Texas Instruments

8-BIT 2.3- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT, WEAK PULL-UP & CONFIG REGISTERS

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Search across all available documentation for this part.

DocumentsDatasheet Logic Guide (Rev. AB)+9

Integrated Circuits (ICs)

PCA9554ADB

Obsolete

Texas Instruments

8-BIT 2.3- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT, WEAK PULL-UP & CONFIG REGISTERS

Deep-Dive with AI

DocumentsDatasheet Logic Guide (Rev. AB)+9

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	PCA9554ADB

Clock Frequency	400 kHz
Current - Output Source/Sink [custom]	10 mA
Current - Output Source/Sink [custom]	25 mA
Features	POR
Interface	I2C, SMBus
Interrupt Output	True
Mounting Type	Surface Mount
Number of I/O	8
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Push-Pull
Package / Case	16-SSOP
Package / Case [custom]	0.209 in
Package / Case [custom]	5.3 mm
Supplier Device Package	16-SSOP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.3 V

PCA9554A Series

8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers

Part	Package / Case [x]	Package / Case	Package / Case [y]	Clock Frequency	Features	Voltage - Supply [Min]	Voltage - Supply [Max]	Current - Output Source/Sink [custom]	Current - Output Source/Sink [custom]	Output Type	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Interface	Supplier Device Package	Number of I/O	Package / Case [custom]	Package / Case [custom]
Texas Instruments PCA9554PWRG4	0.173 in	16-TSSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TSSOP	8
Texas Instruments PCA9554DWR	0.295 in	16-SOIC	7.5 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-SOIC	8
Texas Instruments PCA9554DGVR	0.173 in	16-TFSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TVSOP	8
Texas Instruments PCA9554PW	0.173 in	16-TSSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TSSOP	8
Texas Instruments PCA9554ADGVR	0.173 in	16-TFSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TVSOP	8
Texas Instruments PCA9554PWG4	0.173 in	16-TSSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TSSOP	8
Texas Instruments PCA9554ADB		16-SSOP		400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-SSOP	8	0.209 in	5.3 mm
Texas Instruments PCA9554APWRG4	0.173 in	16-TSSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TSSOP	8
Texas Instruments PCA9554APWG4	0.173 in	16-TSSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TSSOP	8
Texas Instruments PCA9554APW	0.173 in	16-TSSOP	4.4 mm	400 kHz	POR	2.3 V	5.5 V	10 mA	25 mA	Push-Pull	Surface Mount	85 °C	-40 °C	I2C SMBus	16-TSSOP	8

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Texas Instruments	TUBE	1	$ 1.53
		100	$ 1.26
		250	$ 0.91
		1000	$ 0.68

Description

General part information

PCA9554A Series

The PCA9554A 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.

INTcan 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 I2C bus. Thus, the PCA9554A can remain a simple slave device.

The device’s outputs (latched) have high-current drive capability for directly driving LEDs and low current consumption.