Description
The Texas Instruments TCA9534APWR is an I2C-bus-controlled, 8-bit parallel port expander designed for low-power applications. It features eight open-drain outputs that can be used as general-purpose inputs or outputs, with a maximum sink current of 25 mA per output. The device also includes three hardware address pins, allowing up to eight devices on the same I2C bus.
The TCA9534APWR has a low standby current consumption and operates from a single power supply voltage range of 1.65 V to 5.5 V. Its I/O ports are 5-V tolerant, making it suitable for use in a wide range of applications. The device also features an open-drain active-low interrupt output, which can be used to signal events or errors.
The TCA9534APWR is commonly used in embedded systems, industrial automation, consumer electronics, and automotive applications where GPIO expansion and control are required.
Features
The TCA9534APWR features:
- Low standby current consumption
- I2C to parallel port expander
- Open-drain active-low interrupt output
- Operating power-supply voltage range of 1.65 V to 5.5 V
- 5-V tolerant I/O ports
- 400-kHz fast I2C bus
- Three hardware address pins for up to eight devices on the I2C/SMBus
- Input and output configuration register
- Polarity inversion register
- Internal power-on reset
- 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 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 and 1000-V charged-device model)
Package
The package type of TCA9534APWR is 16-TSSOP, which is a 0.173" (4.40mm) width surface-mount device (SMD) package.
Pinout
The TCA9534APWR has a pin count of 16, packaged in a TSSOP-16 (0.173", 4.40mm Width). The functions of the pins are:
- 8 I/O ports for input/output expansion
- 3 hardware address pins for up to eight devices on the I2C/SMBus
- 1 interrupt output pin (open-drain, active-low)
- 4 configuration and control registers
These pins allow for the expansion of GPIO capabilities beyond the main microcontroller or processor, making it suitable for various applications such as embedded systems, industrial automation, consumer electronics, and automotive applications.
Manufacturer
The manufacturer of the TCA9534APWR is Texas Instruments (TI). Texas Instruments is a leading semiconductor company that designs, manufactures, tests, and sells analog and embedded processing chips. The company was founded in 1930 and is headquartered in Dallas, Texas. TI is known for its wide range of products, including microcontrollers, processors, amplifiers, sensors, and more.
Applications
According to the product information, the application areas of TCA9534APWR include:
- Embedded systems
- Industrial automation
- Consumer electronics
- Automotive applications
This IC is commonly used in various applications requiring I/O expansion and control, facilitating GPIO expansion and providing additional input/output control beyond the capabilities of the main microcontroller or processor.
Equivalent
The equivalent products of TCA9534APWR are:
- PCA9541A
- PCA9542A
- PCA9543A
- PCA9544A
These products offer similar I/O expansion and control capabilities, with slight variations in features and specifications.
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