PCF8574DW
- Mfr.Part #
- PCF8574DW
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16SOIC
- Stock
- 82,522
- In Stock :
- 82,522
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- REACH SVHC :
- No SVHC
- Feature :
- POR
- Number of Ports :
- 1
- Thickness :
- 2.35mm
- Number of I/O :
- 8
- Terminal Position :
- Dual
- Length :
- 10.3mm
- Power Supplies :
- 3/5V
- Pin Count :
- 16
- ECCN Code :
- EAR99
- Current - Output Source/Sink :
- 1mA 25mA
- JESD-609 Code :
- e4
- Radiation Hardening :
- No
- Peak Reflow Temperature (Cel) :
- 260
- Weight :
- 420.395078mg
- Number of Pins :
- 16
- Number of Outputs :
- 8
- Height :
- 2.65mm
- Width :
- 7.5mm
- Supply Voltage :
- 5V
- Voltage - Supply :
- 2.5V~6V
- Supply Current-Max :
- 0.1mA
- Clock Frequency :
- 100kHz
- Lifecycle Status :
- ACTIVE (Last Updated: 1 day ago)
- Terminal Pitch :
- 1.27mm
- Number of Terminations :
- 16
- Factory Lead Time :
- 6 Weeks
- Lead Free :
- Lead Free
- Output Type :
- Push-Pull
- Mounting Type :
- Surface Mount
- Package / Case :
- 16-SOIC (0.295, 7.50mm Width)
- Surface Mount :
- yes
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Packaging :
- Tube
- Interface :
- I2C
- Number of Bits :
- 8
- Pbfree Code :
- yes
- Interrupt Output :
- yes
- Base Part Number :
- PCF8574
- Operating Temperature :
- -40°C~85°C
- RoHS Status :
- ROHS3 Compliant
- Terminal Form :
- Gull wing
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Datasheets
- PCF8574DW

I/O Expanders Texas Instruments PCF8574DW Overview
The I/O Expanders Texas Instruments PCF8574DW is an essential component designed to expand the input/output capabilities of microcontrollers via the two-wire I2C bus. This device offers a flexible solution for systems requiring additional I/O ports, particularly where board space is at a premium. The PCF8574DW allows for the connection of multiple devices to a microcontroller without the need for multiple pins, thus simplifying design and reducing hardware costs. With its ability to operate over a wide voltage range and robust interrupt features, the PCF8574DW is an excellent choice for designers looking to enhance their system's scalability and functionality.
PCF8574DW Features
The PCF8574DW from Texas Instruments comes packed with features that make it a versatile choice for expanding I/O capabilities. It includes an 8-bit remote I/O expander for I2C-bus with interrupt, which allows for both polled and interrupt-driven configurations. Its wide operating voltage range (2.5V to 6V) and low stand-by current make it suitable for battery-operated applications. Each I/O can be configured as an input or output without the use of additional components, making this device not only efficient but also cost-effective.
PCF8574DW Applications
- Home Automation Systems: Utilized to control lighting, security, and other household devices, allowing for centralized control of multiple inputs and outputs from a single controller.
- Industrial Automation: Integrates into sensor networks, control systems, and data collection modules to manage and monitor industrial equipment effectively.
- Server Farms: Employed to enhance server management capabilities by monitoring various status inputs like power and cooling, thus improving reliability and performance.
- Consumer Electronics: Used in devices such as TV sets, sound systems, and other peripherals, enabling enhanced functionality and connectivity with minimal hardware modifications.
- Portable Devices: Optimizes space and power in compact devices such as handheld gaming consoles or personal medical devices.
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