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
- Number of Ports :
- 1
- Output Type :
- Open Drain, Push-Pull
- Pin Count :
- 16
- Lead Free :
- Lead Free
- Packaging :
- Tape and Reel (TR)
- Package / Case :
- 16-SOIC (0.154, 3.90mm Width)
- Width :
- 3.91mm
- Supply Current-Max :
- 0.025mA
- Feature :
- POR
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 16
- Height :
- 1.75mm
- Length :
- 9.9mm
- Power Supplies :
- 2.5/5V
- Peak Reflow Temperature (Cel) :
- 260
- Current - Output Source/Sink :
- 10mA 25mA
- Surface Mount :
- yes
- Operating Temperature :
- -40°C~85°C
- Terminal Position :
- Dual
- Base Part Number :
- CA9557
- RoHS Status :
- ROHS3 Compliant
- Supply Voltage :
- 2.5V
- Interrupt Output :
- No
- Number of I/O :
- 8
- ECCN Code :
- EAR99
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Number of Bits :
- 8
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Interface :
- I2C, SMBus
- Pbfree Code :
- yes
- Number of Pins :
- 16
- Terminal Pitch :
- 1.27mm
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Voltage - Supply :
- 2.3V~5.5V
- Terminal Form :
- Gull wing
- Factory Lead Time :
- 16 Weeks
- JESD-609 Code :
- e4
- Thickness :
- 1.58mm
- Operating Supply Voltage :
- 6V
- Clock Frequency :
- 400kHz
- 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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