TCA9534ADWT
- Mfr.Part #
- TCA9534ADWT
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16SOIC
- Stock
- 541
- In Stock :
- 541
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- RoHS Status :
- ROHS3 Compliant
- Number of Pins :
- 16
- Supply Current-Max :
- 0.04mA
- Pbfree Code :
- yes
- Factory Lead Time :
- 6 Weeks
- Clock Frequency :
- 400kHz
- Voltage - Supply :
- 1.65V~5.5V
- Terminal Form :
- Gull wing
- Number of Bits :
- 8
- Terminal Pitch :
- 1.27mm
- Number of Ports :
- 1
- Width :
- 7.5mm
- Packaging :
- Tape and Reel (TR)
- Number of I/O :
- 8
- Length :
- 10.3mm
- Terminal Position :
- Dual
- Height :
- 2.65mm
- Interrupt Output :
- yes
- JESD-609 Code :
- e4
- Base Part Number :
- CA9534
- Output Type :
- Push-Pull
- Mounting Type :
- Surface Mount
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Thickness :
- 2.35mm
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Surface Mount :
- yes
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- Interface :
- I2C
- Operating Temperature :
- -40°C~85°C
- Number of Terminations :
- 16
- Supply Voltage :
- 1.8V
- Package / Case :
- 16-SOIC (0.295, 7.50mm Width)
- uPs/uCs/Peripheral ICs Type :
- PARALLEL IO PORT, GENERAL PURPOSE
- Datasheets
- TCA9534ADWT

I/O Expanders Texas Instruments TCA9534ADWT Overview
The Texas Instruments TCA9534ADWT is a highly versatile and efficient I/O Expander, designed to enhance the functionality of microcontroller-based systems while minimizing the need for additional components. This device allows a host processor to control up to eight additional I/Os via the I2C bus, making it an ideal solution for expanding input/output capabilities without sacrificing valuable board space. The TCA9534ADWT is particularly suitable for applications where pins are at a premium and flexibility is required. Its integration into various systems makes it a top choice for designers looking to optimize their embedded solutions.
TCA9534ADWT Features
This I/O expander integrates several key features that ensure it meets the rigorous demands of modern electronics. It operates across a wide voltage range, from 2.3V to 5.5V, making it adaptable to various logic levels and suitable for battery-operated devices. The device supports interrupt generation, providing a means to respond to input changes without requiring the host to continuously poll the expander, thereby reducing power consumption and enhancing efficiency. With its low standby current, the TCA9534ADWT is also an excellent choice for power-sensitive applications.
TCA9534ADWT Applications
- Smart Home Devices: Utilized in systems to manage additional sensors and actuators, enhancing device functionality and user interactivity.
- Industrial Automation: Facilitates the integration of more control elements on machinery without the need for extensive rewiring or hardware modifications.
- Mobile Devices: Expands I/O capabilities in space-constrained environments like smartphones and tablets, allowing for additional features without compromising on form factor.
- Server Management: Used in server farms to monitor status indicators and manage system inputs and outputs more efficiently.
- Wearable Technology: Helps integrate more functionality into compact wearable devices, such as fitness trackers and smartwatches, supporting additional sensors and output options.
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