PCA9554ADWR
- Mfr.Part #
- PCA9554ADWR
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16SOIC
- Stock
- 2,679
- In Stock :
- 2,679
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Operating Temperature :
- -40°C~85°C
- Package / Case :
- 16-SOIC (0.295, 7.50mm Width)
- Width :
- 7.5mm
- Factory Lead Time :
- 6 Weeks
- Lead Free :
- Lead Free
- Surface Mount :
- yes
- Interface :
- I2C, SMBus
- Terminal Form :
- Gull wing
- Pbfree Code :
- yes
- Height :
- 2.65mm
- Peak Reflow Temperature (Cel) :
- 260
- Current - Output Source/Sink :
- 10mA 25mA
- Number of Terminations :
- 16
- Interrupt Output :
- yes
- Number of I/O :
- 8
- Terminal Position :
- Dual
- Packaging :
- Tape and Reel (TR)
- Pin Count :
- 16
- Number of Ports :
- 1
- Weight :
- 420.395078mg
- Thickness :
- 2.35mm
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- ECCN Code :
- EAR99
- Feature :
- POR
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Terminal Pitch :
- 1.27mm
- Length :
- 10.3mm
- RoHS Status :
- ROHS3 Compliant
- Qualification Status :
- Not Qualified
- Supply Current-Max :
- 0.175mA
- Voltage - Supply :
- 2.3V~5.5V
- Number of Pins :
- 16
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- Number of Bits :
- 8
- Clock Frequency :
- 400kHz
- Power Supplies :
- 2.5/5V
- Supply Voltage :
- 5V
- Output Type :
- Push-Pull
- Contact Plating :
- Gold
- Base Part Number :
- CA9554
- Operating Supply Voltage :
- 5.5V
- JESD-609 Code :
- e4
- Mounting Type :
- Surface Mount
- Datasheets
- PCA9554ADWR

I/O Expanders Texas Instruments PCA9554ADWR Overview
The I/O Expanders Texas Instruments PCA9554ADWR is a versatile and efficient solution for expanding I/O capabilities via the I2C bus interface. This integrated circuit, housed in a compact 16SOIC package, is designed to provide 8-bit parallel input/output expansion for I2C-bus/SMBus applications. It is particularly useful in situations where board space is at a premium and a minimal number of I/O pins are available. The PCA9554ADWR from Texas Instruments features built-in oscillator, filters, and power-on reset to ensure reliable operation, making it an ideal choice for developers looking to enhance system capabilities with additional I/O options.
PCA9554ADWR Features
This IC offers several notable features that make it appealing for a wide range of applications. It supports eight I/O ports that can be configured as inputs or outputs, allowing for a versatile expansion of the host controller’s capabilities. Furthermore, it includes polarity inversion registers and programmable outputs for added flexibility in interfacing. Enhanced with power-up reset, it ensures that all registers are initialized correctly on power-up, contributing to the robustness of your design.
PCA9554ADWR Applications
- Industrial Control Systems: The PCA9554ADWR can be integrated into industrial control systems to manage additional sensors and actuators, expanding system functionality without needing major hardware changes.
- Home Automation: In home automation, this IC allows for the control of lighting, heating, and other systems through additional input and output management, facilitating smarter and more connected environments.
- Server Management: Used in server systems, the PCA9554ADWR helps manage system status indicators and power sequencing, enhancing monitoring and control capabilities in dense server environments.
- Portable Devices: For portable devices, it offers an effective way to expand available hardware controls for user interfaces or additional device features, enhancing user interaction and functionality without significant redesign.
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