Integrated Circuits (ICs)

PCA9539PWRE4

Unknown

Texas Instruments

IC XPND 400KHZ I2C SMBUS 24TSSOP

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Integrated Circuits (ICs)

PCA9539PWRE4

Unknown

Texas Instruments

IC XPND 400KHZ I2C SMBUS 24TSSOP

Deep-Dive with AI

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	PCA9539PWRE4

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	16
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Push-Pull
Package / Case	24-TSSOP
Package / Case	0.173 in, 4.4 mm
Supplier Device Package	24-TSSOP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.3 V

PCA9539 Series

16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Part	Clock Frequency	Package / Case [custom]	Package / Case	Package / Case [custom]	Output Type	Current - Output Source/Sink [custom]	Current - Output Source/Sink [custom]	Features	Voltage - Supply [Min]	Voltage - Supply [Max]	Interface	Mounting Type	Number of I/O	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [y]
Texas Instruments PCA9539DWR	400 kHz	7.5 mm	24-SOIC	0.295 in	Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-SOIC
Texas Instruments PCA9539PWG4	400 kHz		24-TSSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TSSOP	0.173 in 4.4 mm
Texas Instruments PCA9539PWE4	400 kHz		24-TSSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TSSOP	0.173 in 4.4 mm
Texas Instruments PCA9539PWRG4	400 kHz		24-TSSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TSSOP	0.173 in 4.4 mm
Texas Instruments PCA9539DW	400 kHz	7.5 mm	24-SOIC	0.295 in	Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-SOIC
Texas Instruments PCA9539PW	400 kHz		24-TSSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TSSOP	0.173 in 4.4 mm
Texas Instruments PCA9539DBQR	400 kHz	0.154 " 3.9 mm	24-SSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-SSOP
Texas Instruments PCA9539PWR	400 kHz		24-TSSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TSSOP	0.173 in 4.4 mm
Texas Instruments PCA9539DGVR	400 kHz		24-TFSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TVSOP		4.4 mm	0.173 in
Texas Instruments PCA9539PWRE4	400 kHz		24-TSSOP		Push-Pull	10 mA	25 mA	POR	2.3 V	5.5 V	I2C SMBus	Surface Mount	16	85 °C	-40 °C	24-TSSOP	0.173 in 4.4 mm

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2000	$ 1.80

Description

General part information

PCA9539 Series

The system master can reset the PCA9539 in the event of a time-out or other improper operation by asserting a low in theRESETinput. The power-on reset puts the registers in their default state and initializes the I2C/SMBus state machine. AssertingRESETcauses the same reset/initialization to occur without de-powering the part.

The PCA9539 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 PCA9539 can remain a simple slave device.

Documents

Technical documentation and resources

No documents available