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PCA9535D from PHLIPS,Philips

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PCA9535D

Manufacturer: PHLIPS, PHILIPS

16-bit I2C-bus and SMBus, low power I/O port with interrupt

Partnumber Manufacturer Quantity Availability
PCA9535D PHLIPS, PHILIPS 65 In Stock

Description and Introduction

16-bit I2C-bus and SMBus, low power I/O port with interrupt The **PCA9535D** from Philips is a versatile **16-bit I/O expander** designed to enhance the input/output capabilities of microcontrollers and other digital systems. Utilizing the **I²C-bus interface**, this component allows for efficient communication with minimal wiring, making it ideal for space-constrained applications.  

Featuring **low standby current consumption**, the PCA9535D is well-suited for power-sensitive designs. It supports both **input and output configurations**, with each I/O port individually programmable. The device includes **internal pull-up resistors**, simplifying circuit design by reducing external component requirements.  

Key features include **interrupt output functionality**, which alerts the host controller of input state changes, improving system responsiveness. The PCA9535D operates across a **wide voltage range (2.3V to 5.5V)**, ensuring compatibility with various logic levels.  

Common applications include **industrial control systems, consumer electronics, and embedded devices**, where expanding I/O ports without increasing microcontroller complexity is essential. Its robust design and reliable performance make it a preferred choice for engineers seeking a scalable I/O solution.  

With its **high noise immunity** and **low power consumption**, the PCA9535D balances efficiency and functionality, making it a dependable component for modern digital systems.

Application Scenarios & Design Considerations

16-bit I2C-bus and SMBus, low power I/O port with interrupt

Alternative Part Number

  • TCA9535DWR --: Pin-compatible 16-bit I2C/SMBus I/O expander with the same register map and function, widely available and a direct drop-in replacement.
  • PCF8575DW --: 16-bit I2C I/O expander in the same SOIC package family, functionally similar with interrupt output, from the original Philips/NXP lineage.
  • MAX7311AUG+ --: 16-bit I2C port expander with interrupt and reset, comparable feature set and package options, suitable when PCA9535D is unavailable.
  • TCA9535PWR --: Pin-compatible 16-bit I2C/SMBus I/O expander with the same register map and address scheme, widely available and a direct functional drop-in for the PCA9535D.
  • PCF8575CPW --: 16-bit I2C I/O expander from the original Philips/NXP lineage with similar interrupt and reset features, suitable when a close architectural match is preferred.
  • MAX7311AAG+ --: 16-bit I2C port expander with interrupt output and configurable addressing, offering comparable functionality for designs needing a second-source option.

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