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PCA9698BS from PHILIS,Philips

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PCA9698BS

Manufacturer: PHILIS, NXP

40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT

Partnumber Manufacturer Quantity Availability
PCA9698BS PHILIS, NXP 462 In Stock

Description and Introduction

40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT The **PCA9698BS** from Philips is a versatile **I²C-bus controlled 40-bit I/O expander** designed to enhance system flexibility in applications requiring additional general-purpose input/output (GPIO) ports. This component is particularly useful in scenarios where microcontroller I/O pins are limited, enabling efficient expansion through a simple two-wire serial interface.  

Featuring **40 quasi-bidirectional I/O pins**, the PCA9698BS supports both input and output operations with minimal external components. Each I/O can be individually configured, allowing for precise control in complex systems. The device operates at a **voltage range of 2.3V to 5.5V**, making it compatible with a wide variety of logic levels.  

Key features include **high noise immunity**, **low standby current consumption**, and **hot insertion capability**, ensuring reliable performance in industrial, automotive, and consumer electronics applications. The built-in **interrupt output** pin further enhances functionality by signaling changes on input pins, reducing the need for continuous polling.  

With its **I²C-bus interface**, the PCA9698BS supports fast-mode (400 kHz) communication, facilitating seamless integration into existing designs. Its compact package and robust performance make it an ideal choice for space-constrained and power-sensitive applications.  

In summary, the PCA9698BS offers a scalable, efficient solution for expanding digital I/O capabilities while maintaining system simplicity and reliability.

Application Scenarios & Design Considerations

40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT

Alternative Part Number

  • TCA9698BS --: Pin-compatible 40-bit I2C GPIO expander from the same NXP family, directly interchangeable in most designs.
  • MAX7318AUG+ --: Similar I2C GPIO expander functionality with comparable drive strength, suitable as a functional substitute with minor firmware changes.
  • PCF8575TS --: Widely available I2C 16-bit I/O expander that can replace the PCA9698 in lower-channel-count applications with straightforward software adaptation.
  • TCA9548APWR --: 8-channel I2C switch/multiplexer in TSSOP, functionally similar I2C bus expansion role and widely available alternative to the PCA9698 I/O expander.
  • PCF8575CTS --: 16-bit I2C I/O expander from a different NXP series, covers similar GPIO expansion needs with broad availability.
  • MCP23017-E/SS --: 16-bit I2C I/O expander in SSOP, popular cross-manufacturer alternative for GPIO expansion applications.

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