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PCA9535PW from TI,Texas Instruments

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PCA9535PW

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
PCA9535PW TI 35 In Stock

Description and Introduction

16-bit I2C-bus and SMBus, low power I/O port with interrupt # Introduction to the PCA9535PW from Texas Instruments  

The PCA9535PW is a versatile 16-bit I/O expander designed to enhance the input/output capabilities of microcontrollers and embedded systems. Utilizing the I²C-bus interface, this component allows for efficient communication with minimal pin usage, making it ideal for space-constrained applications.  

With two programmable I²C addresses, the PCA9535PW supports multiple devices on the same bus, enabling scalable system designs. Each of its 16 I/O pins can be independently configured as an input or output, providing flexibility for interfacing with sensors, switches, LEDs, and other peripherals. The device also features internal pull-up resistors, simplifying circuit design by reducing external component count.  

Operating at a voltage range of 2.3V to 5.5V, the PCA9535PW is compatible with both 3.3V and 5V logic levels, ensuring broad applicability across various systems. Its low standby current consumption makes it suitable for power-sensitive applications.  

Key features include interrupt output for efficient event monitoring, polarity inversion for logic-level adjustment, and robust ESD protection. These attributes make the PCA9535PW a reliable choice for industrial control, consumer electronics, and IoT applications requiring expanded I/O functionality.  

For detailed specifications, refer to the official datasheet.

Application Scenarios & Design Considerations

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

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