Specification	PCA9538PW

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-TSSOP
Package / Case [x]	0.173 in
Package / Case [y]	4.4 mm
Supplier Device Package	16-TSSOP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.3 V

PCA9538 Series

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

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Interface	Features	Number of I/O	Output Type	Clock Frequency	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Current - Output Source/Sink [custom]	Current - Output Source/Sink [custom]	Package / Case	Package / Case [custom]	Package / Case [custom]	Package / Case [x]	Package / Case [y]
Texas Instruments PCA9538DBR	2.3 V	5.5 V	16-SSOP	I2C SMBus	POR	8	Push-Pull	400 kHz	85 °C	-40 °C	Surface Mount	10 mA	25 mA	16-SSOP	0.209 in	5.3 mm
Texas Instruments PCA9538PWG4	2.3 V	5.5 V	16-TSSOP	I2C SMBus	POR	8	Push-Pull	400 kHz	85 °C	-40 °C	Surface Mount	10 mA	25 mA	16-TSSOP			0.173 in	4.4 mm
Texas Instruments PCA9538DWR	2.3 V	5.5 V	16-SOIC	I2C SMBus	POR	8	Push-Pull	400 kHz	85 °C	-40 °C	Surface Mount	10 mA	25 mA	16-SOIC			0.295 in	7.5 mm
Texas Instruments PCA9538PW	2.3 V	5.5 V	16-TSSOP	I2C SMBus	POR	8	Push-Pull	400 kHz	85 °C	-40 °C	Surface Mount	10 mA	25 mA	16-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	$

General part information

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

Technical documentation and resources