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PCF8575CRGER from TI,Texas Instruments

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PCF8575CRGER

Manufacturer: TI

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-VQFN -40 to 85

Partnumber Manufacturer Quantity Availability
PCF8575CRGER TI 28 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-VQFN -40 to 85 # Introduction to the PCF8575CRGER  

The PCF8575CRGER is a versatile 16-bit I/O expander designed for I²C-bus applications. This CMOS integrated circuit provides general-purpose remote I/O expansion, allowing microcontrollers to efficiently control multiple peripheral devices with minimal wiring.  

Featuring a bidirectional I²C interface, the PCF8575CRGER supports both input and output operations, making it ideal for applications requiring additional GPIO pins. Each of its 16 I/O ports can be independently configured, offering flexibility in system design. The device includes interrupt functionality, reducing the need for continuous polling and improving overall efficiency.  

With a wide operating voltage range (2.5V to 5.5V), the PCF8575CRGER is compatible with various logic levels, ensuring seamless integration into different microcontroller environments. Its compact VQFN-24 package makes it suitable for space-constrained designs.  

Common applications include industrial control systems, LED displays, keypad interfaces, and sensor hubs. The PCF8575CRGER simplifies circuit complexity while enhancing scalability, making it a reliable choice for expanding I/O capabilities in embedded systems.  

Engineers value its ease of use, low power consumption, and robust performance, making it a practical solution for modern electronic designs.

Application Scenarios & Design Considerations

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-VQFN -40 to 85

Alternative Part Number

  • TCA9535PWR --: 16-bit I2C I/O expander with interrupt output, same function and bus interface as PCF8575, in TSSOP package; different series name makes it easy to distinguish.
  • PCA9555PW --: 16-bit I2C/SMBus I/O expander with interrupt, pin-compatible function to PCF8575, widely available and from a different manufacturer/series.
  • MAX7311AUG+ --: 16-bit I2C I/O port expander with interrupt and reset, suitable functional replacement when PCF8575 is unavailable, from a distinct series.

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