PCA9538 Series

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

Catalog

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

Catalog

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

Key Features

• Low standby current consumption of 1 µA maxI2C to parallel port expanderOpen-drain active-low interrupt outputActive-low reset inputOperating power-supply voltage range of 2.3 V to 5.5 V5-V Tolerant I/O ports400-kHz Fast I2C busTwo hardware address pins allow up to four devices on the I2C/SMBusInput and output configuration registerPolarity inversion registerPower-up with all channels configured as inputsNo glitch on power upNoise filter on SCL/SDA inputsLatched outputs with high-current drive maximum capability for directly driving LEDsLatch-up performance exceeds 100 mA Per JESD 78, class IIESD protection exceeds JESD 222000-V Human-body model (A114-A)200-V Machine model (A115-A)1000-V Charged-device model (C101)Low standby current consumption of 1 µA maxI2C to parallel port expanderOpen-drain active-low interrupt outputActive-low reset inputOperating power-supply voltage range of 2.3 V to 5.5 V5-V Tolerant I/O ports400-kHz Fast I2C busTwo hardware address pins allow up to four devices on the I2C/SMBusInput and output configuration registerPolarity inversion registerPower-up with all channels configured as inputsNo glitch on power upNoise filter on SCL/SDA inputsLatched outputs with high-current drive maximum capability for directly driving LEDsLatch-up performance exceeds 100 mA Per JESD 78, class IIESD protection exceeds JESD 222000-V Human-body model (A114-A)200-V Machine model (A115-A)1000-V Charged-device model (C101)