PCF8574RGTR
- Mfr.Part #
- PCF8574RGTR
- Manufacturer
- Texas Instruments
- Package / Case
- 16-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C 8B 16VQFN
- Stock
- 8,701
- In Stock :
- 8,701
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- Manufacturer :
- Texas Instruments
- Product Category :
- I/O Expanders
- Length :
- 3mm
- JESD-609 Code :
- e4
- Interrupt Output :
- yes
- Surface Mount :
- yes
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Output Type :
- Push-Pull
- Width :
- 3mm
- ECCN Code :
- EAR99
- Factory Lead Time :
- 6 Weeks
- Lead Free :
- Lead Free
- Power Supplies :
- 3/5V
- REACH SVHC :
- No SVHC
- Number of Bits :
- 8
- Number of Terminations :
- 16
- Terminal Pitch :
- 0.5mm
- Base Part Number :
- PCF8574
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Height :
- 1mm
- RoHS Status :
- ROHS3 Compliant
- Pin Count :
- 16
- Feature :
- POR
- Mounting Type :
- Surface Mount
- Operating Temperature :
- -40°C~85°C
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Supply Voltage :
- 5V
- Pbfree Code :
- yes
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Voltage - Supply :
- 2.5V~6V
- Number of Ports :
- 1
- Terminal Position :
- QUAD
- Number of Pins :
- 16
- Interface :
- I2C
- Number of I/O :
- 8
- Peak Reflow Temperature (Cel) :
- 260
- Current - Output Source/Sink :
- 1mA 25mA
- Thickness :
- 900μm
- Terminal Form :
- NO LEAD
- Package / Case :
- 16-VFQFN Exposed Pad
- Qualification Status :
- Not Qualified
- Clock Frequency :
- 100kHz
- Supply Current-Max :
- 0.1mA
- Packaging :
- Tape and Reel (TR)
- Weight :
- 24.097095mg
- Datasheets
- PCF8574RGTR

I/O Expanders Texas Instruments PCF8574RGTR Overview
The I/O Expanders Texas Instruments PCF8574RGTR is a highly efficient and versatile 8-bit I2C I/O expander designed to enhance the input/output capabilities of your microcontroller systems with minimal overhead and simplicity. Manufactured by Texas Instruments, this device uses a two-wire I2C interface, which makes it ideal for applications where pins on a microcontroller are limited. The PCF8574RGTR facilitates robust serial communication with various devices by providing additional I/O ports that are configurable either as inputs or outputs. This component is especially beneficial in applications requiring interface with multiple non-volatile memories, sensors, and other peripherals without demanding significant hardware complexity or additional space.
PCF8574RGTR Features
This compact 16-VQFN packaged I/O expander offers key features to enhance its utility and performance in various applications:
- 8-bit remote I/O expander for I2C-bus/SMBus applications
- Low standby current consumption of 10 µA max, ideal for power-sensitive applications
- Operating voltage range from 2.5V to 6V, supporting a wide array of devices
- Interrupt output, providing a direct, hardware-driven notification to the host controller upon input changes
- Three hardware address pins to configure up to eight devices on the same bus, allowing for significant expansion of I/O points without additional pins
PCF8574RGTR Applications
- Smart Home Systems: Enhances connectivity by adding more I/O ports to control devices like lighting, security alarms, and thermostats.
- Industrial Automation: Facilitates the management of sensor data integration into control systems with minimal input/output points.
- Consumer Electronics: Used in devices requiring additional buttons or indicators such as media players, gaming consoles, and TVs.
- Mobile and Wearable Devices: Supports the development of compact, feature-rich wearable tech by providing additional I/O without significant power consumption.
- Robotics: Enables efficient communication and control between the central microcontroller and various sensors, actuators, or other peripheral devices in robotic systems.
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