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See Technical Specifications

TCA9538PWR +BOM

8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Manufacturer:

TI
Mfr.Part #:

TCA9538PWR
Datasheet:

TCA9538PWR Datasheet (PDF)
Number of I/Os:

8
Features:

Configuration registers, Interrupt pin, Reset pin
Supply voltage (min) (V):

1.65
Supply voltage (max) (V):

5.5
EDA/CAD Models:

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TCA9538PWR General Description

One of the standout features of the TCA9538PWR is its hardware reset pin, enabling easy device reset when needed. Additionally, the programmable I2C-bus address allows for seamless integration with multiple devices, enhancing compatibility and scalability. With a remarkably low standby current consumption of only 1 uA, this I/O expander ensures efficient power management and reduced energy consumption

Key Features

Low Standby Current Consumption
I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
Active-Low Reset Input
Operating Power-Supply Voltage Range of 1.65 V to 5.5 V
5-V Tolerant I/O Ports
400-kHz Fast I²C Bus
Two Hardware Address Pins Allow up to Four Devices on the I²C/SMBus
Input and Output Configuration Register
Polarity Inversion Register
Power-Up With All Channels Configured as Inputs
No Glitch on Power Up
Noise Filter on SCL/SDA Inputs
Latched Outputs With High-Current Drive Maximum Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)

Specifications

Number of I/Os	8	Features	Configuration registers, Interrupt pin, Reset pin
Supply voltage (min) (V)	1.65	Supply voltage (max) (V)	5.5
Addresses	4	Rating	Catalog
Frequency (max) (MHz)	0.4	Operating temperature range (°C)	-40 to 85