PCA9557D
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- Mfr.Part #
- PCA9557D
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16SOIC
- Stock
- 6,734
- In Stock ：
- 6,734
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Factory Lead Time :
- 6 Weeks
- Number of Bits :
- 8
- Current - Output Source/Sink :
- 10mA 25mA
- Supply Voltage :
- 2.5V
- Base Part Number :
- CA9557
- Number of Terminations :
- 16
- Terminal Position :
- Dual
- Operating Temperature :
- -40°C~85°C
- Number of I/O :
- 8
- Lead Free :
- Lead Free
- Number of Pins :
- 16
- Power Supplies :
- 2.5/5V
- Output Type :
- Open Drain, Push-Pull
- Terminal Pitch :
- 1.27mm
- Interrupt Output :
- No
- Number of Ports :
- 1
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- RoHS Status :
- ROHS3 Compliant
- Feature :
- POR
- Width :
- 3.91mm
- Pin Count :
- 16
- Interface :
- I2C, SMBus
- Height :
- 1.75mm
- ECCN Code :
- EAR99
- Pbfree Code :
- yes
- Clock Frequency :
- 400kHz
- Package / Case :
- 16-SOIC (0.154, 3.90mm Width)
- Weight :
- 665.986997mg
- JESD-609 Code :
- e4
- Length :
- 9.9mm
- Supply Current-Max :
- 0.025mA
- Packaging :
- Tube
- Voltage - Supply :
- 2.3V~5.5V
- Mounting Type :
- Surface Mount
- Surface Mount :
- yes
- Lifecycle Status :
- ACTIVE (Last Updated: 5 days ago)
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Form :
- Gull wing
- Thickness :
- 1.58mm
- Peak Reflow Temperature (Cel) :
- 260
- Datasheets
- PCA9557D
I/O Expanders Texas Instruments PCA9557D Overview
The I/O Expanders Texas Instruments PCA9557D is a highly versatile 8-bit I2C-bus I/O expander designed for microcontroller system applications requiring additional I/O capabilities. This IC provides effective solutions for enhancing system performance and functionality in compact form factors. It operates over a broad voltage range, making it suitable for a variety of applications across different industries. Its easy integration and scalability help streamline product development processes, significantly reducing time to market and overhead costs, making it an ideal choice for businesses looking to purchase in bulk.
PCA9557D Features
The PCA9557D IC features include 8 I/O pins that can be configured individually as inputs or outputs. It offers an I2C interface that facilitates serial communication with microprocessors or microcontrollers in a system. The IC also includes three hardware address pins to allow up to eight devices on the same bus, enhancing the flexibility and scalability of system design. Additionally, it supports both 400 kHz I2C Fast-mode and 100 kHz I2C Standard-mode and is available in a 16-SOIC package, providing a compact solution for space-constrained applications.
PCA9557D Applications
- Industrial Automation: In complex industrial systems, the PCA9557D can be used to expand the number of control inputs and outputs, facilitating enhanced monitoring and control of automated processes.
- Consumer Electronics: This expander is utilized in consumer electronics to manage additional buttons or LEDs without requiring more pins from the primary controller, optimizing device functionality and user interface.
- Server Management: It is applied in server systems for managing status indicators, sensor inputs, and control signals, improving system reliability and performance monitoring.
- Home Automation Systems: The PCA9557D helps increase the number of I/Os available for smart home devices, enabling more complex system configurations and greater control over home automation routines.
- Automotive Applications: Used in automotive environments to control features such as lighting and dashboards, where additional I/Os are necessary for enhanced functionality.
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