PCA9555DW
- Mfr.Part #
- PCA9555DW
- Manufacturer
- Texas Instruments
- Package / Case
- 24-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 16B 24SOIC
- Stock
- 2,608
- In Stock :
- 2,608
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Lead Free :
- Lead Free
- Operating Temperature :
- -40°C~85°C
- Number of Outputs :
- 2
- Voltage - Supply :
- 2.3V~5.5V
- Operating Supply Voltage :
- 5.5V
- Clock Frequency :
- 400kHz
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Number of Pins :
- 24
- Lifecycle Status :
- ACTIVE (Last Updated: 1 week ago)
- Pin Count :
- 24
- Peak Reflow Temperature (Cel) :
- 260
- Supply Voltage :
- 3V
- Packaging :
- Tube
- Height :
- 2.65mm
- Number of I/O :
- 16
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Pbfree Code :
- yes
- Mounting Type :
- Surface Mount
- Number of Bits :
- 16
- Interface :
- I2C, SMBus
- Weight :
- 624.398247mg
- Output Type :
- Push-Pull
- ECCN Code :
- EAR99
- Radiation Hardening :
- No
- Number of Ports :
- 2
- RoHS Status :
- ROHS3 Compliant
- Factory Lead Time :
- 6 Weeks
- Width :
- 7.5mm
- Base Part Number :
- CA9555
- JESD-609 Code :
- e4
- Current - Output Source/Sink :
- 10mA 25mA
- Feature :
- POR
- Terminal Position :
- Dual
- Package / Case :
- 24-SOIC (0.295, 7.50mm Width)
- Number of Terminations :
- 24
- Interrupt Output :
- yes
- Thickness :
- 2.35mm
- Surface Mount :
- yes
- Length :
- 15.4mm
- Terminal Form :
- Gull wing
- Datasheets
- PCA9555DW

I/O Expanders Texas Instruments PCA9555DW Overview
The I/O Expanders Texas Instruments PCA9555DW is an advanced 16-bit I2C compatible I/O expander designed to maximize the efficiency of the system by increasing the GPIO expandability. This powerful component is housed in a 24SOIC package, making it an ideal solution for applications that require additional I/O capabilities without the need to increase the processor workload. The PCA9555DW is highly valued for its ability to operate over a wide voltage range and its robust interfacing capabilities, making it a top choice for designers aiming to enhance their system's performance with reliable and scalable I/O solutions.
PCA9555DW Features
This I/O expander integrates several features that make it a versatile component for many electronic applications. Key features include:
- 16-bit I/O ports which can be configured as inputs or outputs.
- Low standby current which enhances power efficiency.
- Polarity inversion register to configure the polarity of the input port data.
- Three hardware address pins to allow up to eight devices on the same bus.
- High noise immunity and low power consumption.
PCA9555DW Applications
- Automated Test Equipment: Utilizes the PCA9555DW for enhanced I/O port control, allowing for detailed testing procedures and increased device interface capabilities.
- Industrial Control Systems: Employs the PCA9555DW to add more I/O points which are crucial for managing multiple sensors and actuators in complex automation setups.
- Server Motherboards: Incorporates the PCA9555DW to expand GPIO capabilities which is essential for advanced server management and monitoring functions.
- Portable Electronics: Uses the PCA9555DW for its low power consumption and small package size, ideal for expanding I/O in space-constrained designs like tablets and mobile phones.
- Building Automation: The PCA9555DW is applied to enhance system control and monitoring, integrating more sensors and controls without overloading the main processor.
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