PCA9557DB
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- Mfr.Part #
- PCA9557DB
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SSOP (0.209, 5.30mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16SSOP
- Stock
- 3,395
- In Stock ：
- 3,395
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Weight :
- 128.593437mg
- Number of Bits :
- 8
- Number of Terminations :
- 16
- Surface Mount :
- yes
- JESD-609 Code :
- e4
- Current - Output Source/Sink :
- 10mA 25mA
- Factory Lead Time :
- 12 Weeks
- Interface :
- I2C, SMBus
- Height :
- 2mm
- Lead Free :
- Lead Free
- ECCN Code :
- EAR99
- Number of I/O :
- 8
- Terminal Form :
- Gull wing
- Operating Temperature :
- -40°C~85°C
- Interrupt Output :
- No
- Lifecycle Status :
- ACTIVE (Last Updated: 5 days ago)
- Number of Ports :
- 1
- RoHS Status :
- ROHS3 Compliant
- Voltage - Supply :
- 2.3V~5.5V
- Base Part Number :
- CA9557
- Terminal Pitch :
- 0.65mm
- Feature :
- POR
- Pbfree Code :
- yes
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Thickness :
- 1.95mm
- Peak Reflow Temperature (Cel) :
- 260
- Packaging :
- Tube
- Mounting Type :
- Surface Mount
- Clock Frequency :
- 400kHz
- Terminal Position :
- Dual
- Number of Pins :
- 16
- Power Supplies :
- 2.5/5V
- Output Current :
- -10mA
- Width :
- 5.3mm
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Pin Count :
- 16
- Package / Case :
- 16-SSOP (0.209, 5.30mm Width)
- Length :
- 6.2mm
- Output Type :
- Open Drain, Push-Pull
- Supply Voltage :
- 2.5V
- Supply Current-Max :
- 0.025mA
- Datasheets
- PCA9557DB
I/O Expanders Texas Instruments PCA9557DB Overview
The Texas Instruments PCA9557DB is a highly versatile I/O Expander, part of the robust PCA9557 series. This integrated circuit is engineered to enhance the functionality of microcontroller systems, enabling the addition of more input/output ports through a simple I2C interface. Its small footprint, housed in a 16SSOP package, makes it ideal for space-constrained applications, while offering reliable performance in a wide range of environmental conditions. The I/O Expanders Texas Instruments PCA9557DB is designed to meet the needs of complex digital systems, ensuring efficient communication and expandability, thus optimizing system performance and scalability.
PCA9557DB Features
The PCA9557DB offers several key features that make it a suitable choice for system expansion:
- 8-bit I/O expander with an I2C-bus interface for seamless integration.
- Includes eight I/O pins that can be individually configured as inputs or outputs.
- Polarity inversion register for adapting signal polarity.
- Three hardware address pins allowing up to eight devices on the same bus.
- Operating voltage range of 2.3V to 5.5V, accommodating various logic levels and power supplies.
- Interrupt output for capturing input changes without needing to poll the device, enhancing system efficiency.
PCA9557DB Applications
- Server Management: Utilized to increase the number of status indicators and controls within server hardware without requiring additional GPIOs on the main processor.
- Consumer Electronics: Integrated into devices such as TVs and remote controls, expanding the number of controls available to the user without increasing the complexity of the primary microcontroller.
- Industrial Automation: Facilitates the management of multiple input and output configurations in automated production lines, enhancing operational flexibility.
- Home Automation Systems: Acts as a key component in smart home devices, enabling more inputs and outputs for device controls and sensors, contributing to more responsive and capable home automation ecosystems.
- Portable Devices: Used in mobile devices to expand control options while maintaining a compact size, suitable for products requiring a dense configuration of controls.
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