PCA9539DB
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- Mfr.Part #
- PCA9539DB
- Manufacturer
- Texas Instruments
- Package / Case
- 24-SSOP (0.209, 5.30mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 16B 24SSOP
- Stock
- 5,358
- In Stock ：
- 5,358
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Contact Plating :
- Gold
- Width :
- 5.3mm
- Packaging :
- Tape and Reel (TR)
- Number of Bits :
- 16
- Pbfree Code :
- yes
- Output Type :
- Push-Pull
- Peak Reflow Temperature (Cel) :
- 260
- Feature :
- POR
- Pin Count :
- 24
- Voltage - Supply :
- 2.3V~5.5V
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- Qualification Status :
- Not Qualified
- Number of Ports :
- 2
- Interface :
- I2C, SMBus
- Surface Mount :
- yes
- Operating Temperature :
- -40°C~85°C
- Current - Output Source/Sink :
- 10mA 25mA
- Weight :
- 172.39345mg
- Terminal Form :
- Gull wing
- Number of Pins :
- 24
- Number of Outputs :
- 2
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Interrupt Output :
- yes
- Number of I/O :
- 16
- Length :
- 8.2mm
- Terminal Position :
- Dual
- JESD-609 Code :
- e4
- Thickness :
- 1.95mm
- Factory Lead Time :
- 6 Weeks
- Package / Case :
- 24-SSOP (0.209, 5.30mm Width)
- Lead Free :
- Lead Free
- RoHS Status :
- ROHS3 Compliant
- Mounting Type :
- Surface Mount
- Clock Frequency :
- 400kHz
- Supply Voltage :
- 3V
- Number of Terminations :
- 24
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Pitch :
- 0.65mm
- Base Part Number :
- CA9539
- ECCN Code :
- EAR99
- Operating Supply Voltage :
- 5.5V
- Height :
- 2mm
- Output Current :
- 25mA
- Datasheets
- PCA9539DB
I/O Expanders Texas Instruments PCA9539DB Overview
The PCA9539DB from Texas Instruments represents a robust solution in the realm of I/O expanders, designed to enhance the functionality of systems requiring additional I/O ports. This 16-bit expander uses the I2C bus to communicate with the host controller, encapsulated in a 24-SSOP package that ensures a minimal footprint on PCBs. Its design is particularly suited for applications where space and power are at a premium. The integration of this I/O expander can significantly simplify system design by reducing the number of wires and improving overall reliability and scalability. Utilizing the I/O Expanders Texas Instruments PCA9539DB allows for efficient management and expansion of input/output operations without overloading the main processor, making it an indispensable tool for developers and engineers in complex electronic environments.
PCA9539DB Features
The PCA9539DB is equipped with numerous features that make it a versatile choice for expanding I/O capabilities. Key features include 16 I/O ports that can be individually set as input or output, low standby current, and compatibility with I2C bus speeds up to 400 kHz. Additionally, it offers polarity inversion registers to simplify the interface logic, and its wide operating voltage range (2.3V to 5.5V) allows for flexible integration into various system designs. Its enhanced ESD protection ensures robustness and longevity in demanding applications.
PCA9539DB Applications
- Industrial Automation: In factory automation equipment, the PCA9539DB can be used to manage additional sensors and actuators, streamlining production processes by allowing more complex control systems to be centralized and simplified.
- Server Farms: This I/O expander helps in monitoring server performance and managing server I/O efficiently, providing additional ports for sensors and control interfaces, crucial in large data centers.
- Consumer Electronics: Used in devices like smart home systems, the PCA9539DB expands the number of available I/O ports for controlling various household items, enhancing user interfaces and connectivity.
- Mobile and Portable Devices: The expander can also be integrated into mobile devices, where space is limited and additional I/Os are necessary for auxiliary functions such as button management and indicator LEDs.
- Healthcare Equipment: In medical devices, it is used to increase the number of sensor interfaces and control outputs without requiring significant additional power, crucial for patient monitoring systems and diagnostic equipment.
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