Texas Instruments TCA9539QPWRQ1
| Parameters | |
|---|---|
| Series | Automotive, AEC-Q100 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Interface | I²C, SMBus |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Output Type | Push-Pull |
| Supplier Device Package | 24-TSSOP |
| Number of I/O | 16 |
| Voltage - Supply | 1.65V ~ 3.6V |
| Clock Frequency | 400 kHz |
| Current - Output Source/Sink | 10mA, 25mA |
| Interrupt Output | Yes |
| Features | POR |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TCA9539 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TCA9539QPWRQ1 - Automotive-Grade I/O Expander with I2C Interface
The TCA9539QPWRQ1 is a high-performance, automotive-qualified I/O expander designed to provide flexible general-purpose input/output (GPIO) expansion via the I2C interface. It is part of Texas Instruments' AEC-Q100 qualified portfolio, ensuring reliability for harsh automotive environments. With 16 configurable I/O pins, this IC enables efficient system control and sensor interfacing while minimizing microcontroller pin usage.
Key Features
The TCA9539QPWRQ1 supports bidirectional voltage-level translation between 1.8V and 5.5V, making it compatible with a wide range of microcontrollers and peripherals. It includes programmable pull-up resistors, interrupt output for event detection, and low standby current consumption, optimizing power efficiency. Its robust ESD protection (up to 4kV HBM) ensures durability in automotive and industrial applications.
Applications
This I/O expander is ideal for automotive systems such as infotainment, body control modules, and lighting control. It is also suitable for industrial automation, consumer electronics, and IoT devices requiring additional GPIOs with minimal power consumption.
Alternative I2C GPIO expander Models
•PCA9539PW (NXP): Similar 16-bit I/O expander with I2C interface, lacking automotive-grade certification.
•MAX7313AUG+ (Analog Devices): 16-bit I/O expander with interrupt output, optimized for industrial use.
•MCP23017-E/SP (Microchip): 16-bit I/O expander with SPI/I2C interface, suitable for general-purpose applications.
