PCA9554PWG4
- Mfr.Part #
- PCA9554PWG4
- Manufacturer
- Texas Instruments
- Package / Case
- 16-TSSOP (0.173, 4.40mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16TSSOP
- Stock
- 34,732
- In Stock :
- 34,732
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Surface Mount :
- yes
- Width :
- 4.4mm
- Number of Ports :
- 1
- Peak Reflow Temperature (Cel) :
- 260
- Clock Frequency :
- 400kHz
- Feature :
- POR
- Interface :
- I2C, SMBus
- Voltage - Supply :
- 2.3V~5.5V
- ECCN Code :
- EAR99
- Power Supplies :
- 2.5/5V
- Terminal Form :
- Gull wing
- Length :
- 5mm
- Base Part Number :
- CA9554
- Height :
- 1.2mm
- Operating Temperature :
- -40°C~85°C
- Operating Supply Voltage :
- 5.5V
- Package / Case :
- 16-TSSOP (0.173, 4.40mm Width)
- Mounting Type :
- Surface Mount
- Supply Voltage :
- 3V
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Position :
- Dual
- Output Current :
- 25mA
- Number of Bits :
- 8
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Lifecycle Status :
- NRND (Last Updated: 1 week ago)
- Current - Output Source/Sink :
- 10mA 25mA
- Pbfree Code :
- yes
- RoHS Status :
- ROHS3 Compliant
- Supply Current-Max :
- 0.175mA
- Interrupt Output :
- yes
- Qualification Status :
- Not Qualified
- Output Type :
- Push-Pull
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Packaging :
- Tube
- Pin Count :
- 16
- JESD-609 Code :
- e4
- Number of Pins :
- 16
- Weight :
- 61.887009mg
- Lead Free :
- Lead Free
- Number of Terminations :
- 16
- Thickness :
- 1mm
- Number of I/O :
- 8
- Datasheets
- PCA9554PWG4

I/O Expanders Texas Instruments PCA9554PWG4 Overview
The I/O Expanders Texas Instruments PCA9554PWG4 is a highly efficient and versatile 8-bit I/O expander, designed to effectively manage the interface challenges in microcontroller-based systems without sufficient I/O ports. Utilizing the I2C bus interface, this IC allows for significant expansion of I/O capabilities while minimizing the pin requirements on the main processor. Its compact 16-TSSOP package is engineered for streamlined integration into a variety of electronic assemblies, making it ideal for space-constrained applications. The PCA9554PWG4 stands out for its robustness and adaptability, making it a preferred choice for developers looking to enhance their system’s I/O handling capacity.
PCA9554PWG4 Features
This product boasts several key features that enhance its utility and efficiency in expanding I/O capabilities. These include low standby current, which is crucial for power-sensitive applications, and an interrupt output feature that ensures timely response to input changes. Additionally, the PCA9554PWG4 supports both standard (100 kHz) and fast (400 kHz) I2C modes, allowing for flexible integration into different system architectures. Its ability to operate across a wide voltage range from 2.3V to 5.5V also adds to its versatility, accommodating various logic levels and power supplies.
PCA9554PWG4 Applications
- Smart Home Devices: The PCA9554PWG4 can be used to expand input/output options for home automation systems, allowing for the integration of additional sensors and actuators without overloading the central controller.
- Industrial Control Systems: In industrial environments, this IC helps to manage multiple input and output signals, which is essential for monitoring and controlling machinery with precision and reliability.
- Mobile Devices: It assists in extending the I/O capabilities of compact devices where space and power efficiency are critical, improving functionality without significant power draw.
- Server Management: By facilitating the addition of more I/O ports, the PCA9554PWG4 is ideal for server applications where extensive monitoring and control of hardware is necessary.
- Wearable Technology: This expander is also suitable for wearables, contributing to miniaturization efforts by reducing the need for numerous discrete components.
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