PCA9557DR
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- Mfr.Part #
- PCA9557DR
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16SOIC
- Stock
- 18,098
- In Stock ：
- 18,098
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Length :
- 9.9mm
- Height :
- 1.75mm
- Feature :
- POR
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Number of Bits :
- 8
- Current - Output Source/Sink :
- 10mA 25mA
- Factory Lead Time :
- 16 Weeks
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 16
- Supply Current-Max :
- 0.025mA
- Terminal Form :
- Gull wing
- Thickness :
- 1.58mm
- Output Type :
- Open Drain, Push-Pull
- Packaging :
- Tape and Reel (TR)
- Terminal Pitch :
- 1.27mm
- Operating Supply Voltage :
- 6V
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Pbfree Code :
- yes
- Power Supplies :
- 2.5/5V
- Terminal Position :
- Dual
- Clock Frequency :
- 400kHz
- Peak Reflow Temperature (Cel) :
- 260
- Surface Mount :
- yes
- Pin Count :
- 16
- Package / Case :
- 16-SOIC (0.154, 3.90mm Width)
- Number of I/O :
- 8
- ECCN Code :
- EAR99
- Base Part Number :
- CA9557
- Supply Voltage :
- 2.5V
- RoHS Status :
- ROHS3 Compliant
- Operating Temperature :
- -40°C~85°C
- Interface :
- I2C, SMBus
- Width :
- 3.91mm
- Voltage - Supply :
- 2.3V~5.5V
- Interrupt Output :
- No
- Lead Free :
- Lead Free
- Number of Ports :
- 1
- JESD-609 Code :
- e4
- Number of Pins :
- 16
- Datasheets
- PCA9557DR
I/O Expanders Texas Instruments PCA9557DR Overview
The I/O Expanders Texas Instruments PCA9557DR is a highly versatile and efficient solution for expanding the I/O capabilities of microcontroller systems via the I2C bus interface. This integrated circuit, housed in a compact 16SOIC package, offers 8 bits of configurable input/output options. The PCA9557DR by Texas Instruments stands out for its ability to operate over a broad voltage range and its built-in features that enhance system reliability and functionality, making it an essential component for engineers looking to optimize their digital systems.
PCA9557DR Features
The PCA9557DR includes several key features that make it particularly useful for complex digital systems. These include polarity inversion register to allow inversion of the input register bits, low standby current, and an interrupt output that facilitates enhanced I2C bus communication. Its capability to function within a wide range of temperatures (-40 to +85 degrees Celsius) makes it suitable for industrial applications where robustness is critical.
PCA9557DR Applications
- Industrial Control Systems: Integrates with microcontrollers to manage inputs and outputs, enhancing the control and flexibility of automation processes.
- Automotive Applications: Used in car electronics for expanding control over various subsystems within vehicles, improving functionality and responsiveness.
- Server Management: Utilized in server farms for managing signal lines efficiently, thus optimizing physical space and reducing operational costs.
- Home Automation Systems: Implements additional I/O points for smart home devices, allowing for more sophisticated home automation setups.
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