Texas Instruments TCA9539QPWRQ1

Manufacturer: Texas Instruments
SEMICON NO.: TCA9539QPWRQ1
Package: 24-TSSOP
Stock: In stock
Description: IC XPND 400KHZ I2C SMBus 24TSSOP

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Mfr	Texas Instruments
Interface	I²C/SMBus
I/O Pins	16-bit
Voltage Range	1.65 V to 3.6 V
Input Voltage Tolerance	5.5 V
Clock Frequency	100 kHz(Standard mode), 400 kHz(Fast mode)
Standby Current	≤ 10 µA (typical)
Operating Temperature	-40 °C to +125 °C
Package	24-TSSOP
Mounting Type	Surface Mount (SMD)
RoHS Compliance	Yes (Lead-Free)

TCA9539QPWRQ1 I2C expander, 16-bit SMBus expander
The TCA9539QPWRQ1 is an automotive-grade, low-voltage 16-bit I2C and SMBus low-power I/O expander with an interrupt output, reset pin, and configuration registers. It is designed for applications requiring robust and reliable I/O expansion in automotive environments. This device is AEC-Q100 qualified, ensuring high reliability and performance in harsh conditions.
Features and Applications
The TCA9539QPWRQ1 offers a wide range of features that make it suitable for demanding automotive applications. It supports a supply voltage range of 1.65 V to 3.6 V and features 5V-tolerant I/O ports, ensuring compatibility with various microcontrollers and systems. The device includes two sets of 8-bit quasi-bidirectional ports (P0 and P1) that can be configured as inputs or outputs. It also features an open-drain active-low interrupt output (INT) and an active-low reset input (RESET) for easy system control. Additionally, the TCA9539QPWRQ1 includes a polarity inversion register, allowing the output polarity to be inverted for greater flexibility. The device supports a 400 kHz Fast I2C bus and provides internal power-on reset, ensuring glitch-free operation during power-up.
The TCA9539QPWRQ1 is ideal for a variety of automotive applications, including infotainment systems, advanced driver-assistance systems (ADAS), body electronics, hybrid electric vehicles (HEV), and electric vehicles (EV). Its robust design and high reliability make it suitable for industrial automation, factory automation, building automation, test and measurement equipment, and electronic point-of-sale (EPOS) systems. The device can also be used as a general-purpose I2C GPIO expander in various embedded systems.
AlternativeI2C expander Models
● TCA9539PWR: This variant is a standard industrial version of the TCA9539, offering similar features but without the automotive-grade AEC-Q100 qualification.
● TCA9538PWR: An 8-bit version of the I2C I/O expander, providing a smaller footprint and lower pin count while maintaining similar functionality.
● TCA9534APWR: Another 8-bit I2C I/O expander with a smaller pin count, suitable for applications requiring fewer I/O lines.