PCA9544ADWR
- Mfr.Part #
- PCA9544ADWR
- Manufacturer
- Texas Instruments
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC INTERFACE SPECIALIZED 20SOIC
- Stock
- 2,796
- In Stock :
- 2,796
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- Manufacturer :
- Texas Instruments
- Product Category :
- Specialized
- Resistance :
- 16Ohm
- Supply Voltage :
- 2.5V
- Throw Configuration :
- 4PST
- Mounting Type :
- Surface Mount
- Pbfree Code :
- yes
- Nominal Supply Current :
- 3μA
- Applications :
- Translating Switch
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Voltage - Supply :
- 2.3V~5.5V
- Terminal Position :
- Dual
- Number of Functions :
- 1
- ECCN Code :
- EAR99
- Factory Lead Time :
- 6 Weeks
- Thickness :
- 2.35mm
- RoHS Status :
- ROHS3 Compliant
- Power Dissipation :
- 400mW
- Bandwidth :
- 400 kHz
- Peak Reflow Temperature (Cel) :
- 260
- Logic Function :
- Multiplexer
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Output Polarity :
- TRUE
- Width :
- 7.5mm
- Terminal Form :
- Gull wing
- Propagation Delay :
- 1 ns
- Lifecycle Status :
- ACTIVE (Last Updated: 5 days ago)
- Temperature Grade :
- Industrial
- Packaging :
- Tape and Reel (TR)
- Packing Method :
- TR
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Base Part Number :
- CA9544
- JESD-609 Code :
- e4
- Supply Voltage-Max (Vsup) :
- 5.5V
- Radiation Hardening :
- No
- Max Frequency :
- 400kHz
- Number of Pins :
- 20
- Min Operating Temperature :
- -40°C
- Height :
- 2.65mm
- Length :
- 12.8mm
- Number of Terminations :
- 20
- Lead Free :
- Lead Free
- Number of Circuits :
- 4
- Mount :
- Surface Mount
- Max Operating Temperature :
- 85°C
- Pin Count :
- 20
- Number of Outputs :
- 1
- Supply Voltage-Min (Vsup) :
- 2.3V
- Weight :
- 500.709277mg
- Interface :
- I2C, SMBus
- Datasheets
- PCA9544ADWR

Specialized Texas Instruments PCA9544ADWR Overview
The Specialized Texas Instruments PCA9544ADWR is a high-performance, 4-channel I2C-bus switch with an interrupt logic, housed in a compact 20-SOIC package. This specialized interface IC allows multiple I2C devices to be connected to the same bus, providing seamless communication and enhanced control functionalities. The PCA9544ADWR is ideal for applications requiring multiple I2C devices or different bus configurations, making it a vital component in sophisticated electronics where space and reliable performance are critical. Its capacity to handle multiple device interactions efficiently makes it perfect for advanced system developments, significantly streamlining the design process and enhancing system reliability in high-demand environments.
PCA9544ADWR Features
The PCA9544ADWR includes several notable features that enhance its utility and effectiveness in complex electronic systems:
- Four independently selectable I2C-bus channels.
- 2.5V to 5.5V operation voltage, suitable for various power environments.
- Low standby current which enhances power efficiency.
- Interrupt input for all channels, facilitating better control and response to connected devices.
- Channel selection via I2C bus, allowing for flexible and dynamic configuration adjustments.
PCA9544ADWR Applications
- Server Motherboards: Utilized for expanding I2C bus connections, allowing for comprehensive monitoring and control of system parameters.
- Industrial Automation Systems: Enhances communication between different sensors and actuators, simplifying integration and control processes in complex machinery.
- Consumer Electronics: Applied in devices like smart televisions and home automation hubs to manage multiple device communications on a single bus.
- Telecommunications Equipment: Critical in managing signal integrity and routing information efficiently across multiple components.
- Medical Devices: Ensures reliable data transmission between various diagnostic equipment, improving patient care through advanced technology integration.
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