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PCA9532PW,112
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PCA9532PW,112

Product Overview

Category

The PCA9532PW,112 belongs to the category of I/O expanders.

Use

It is used to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface.

Characteristics

  • Package: TSSOP
  • Essence: 16-bit I2C-bus and SMBus I/O port with interrupt
  • Packaging/Quantity: Tape and Reel (3,000 units per reel)

Specifications

The PCA9532PW,112 features: - 5V tolerant I/Os - Operating power supply voltage range of 2.3 V to 5.5 V - Low standby current consumption of 1 µA (max) - Open-drain active-low interrupt output - Polarity inversion register to configure the polarity of the input port data

Detailed Pin Configuration

The PCA9532PW,112 has a total of 20 pins, including 16 I/O pins and 4 control pins. The pin configuration is as follows: - A0, A1: Address inputs for the device - SDA, SCL: I2C-bus serial data and clock lines - INT: Interrupt output - P0-P7: I/O ports

Functional Features

The functional features of PCA9532PW,112 include: - Input/Output Configuration - Polarity Inversion - Quasi-bidirectional I/Os - Software Reset

Advantages and Disadvantages

Advantages

  • Simplifies I/O expansion of microcontrollers
  • Low standby current consumption
  • 5V tolerant I/Os

Disadvantages

  • Limited number of I/O ports
  • Requires I2C interface support from the microcontroller

Working Principles

The PCA9532PW,112 operates by providing a simple solution when additional I/Os are needed while minimizing pin count and reducing I/O complexity.

Detailed Application Field Plans

The PCA9532PW,112 is commonly used in applications such as: - LED dimming control - Push button inputs - Keypad scanning - I/O expansion for microcontrollers

Detailed and Complete Alternative Models

Some alternative models to PCA9532PW,112 include: - PCA9555PW,118 - MCP23017-E/SP - MAX7311ATG+

In conclusion, the PCA9532PW,112 is a versatile I/O expander with various features and applications, making it an essential component for expanding the I/O capabilities of microcontrollers.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng PCA9532PW,112 trong giải pháp kỹ thuật

  1. What is PCA9532PW,112?

    • PCA9532PW,112 is a 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers.

  2. What is the operating voltage range for PCA9532PW,112?

    • The operating voltage range for PCA9532PW,112 is 2.3V to 5.5V.

  3. How many I/O pins does PCA9532PW,112 have?

    • PCA9532PW,112 has 16 I/O pins.

  4. Can PCA9532PW,112 be used for LED dimming control?

    • Yes, PCA9532PW,112 can be used for LED dimming control as it supports PWM output.

  5. What is the maximum frequency for the PWM output of PCA9532PW,112?

    • The maximum frequency for the PWM output of PCA9532PW,112 is 30Hz.

  6. Is PCA9532PW,112 suitable for battery-powered applications?

    • Yes, PCA9532PW,112 is suitable for battery-powered applications due to its low operating voltage range.

  7. Does PCA9532PW,112 support hardware addressing?

    • Yes, PCA9532PW,112 supports hardware addressing through its A0, A1, and A2 pins.

  8. Can PCA9532PW,112 be cascaded with other I2C devices?

    • Yes, PCA9532PW,112 can be cascaded with other I2C devices as it has a unique address.

  9. What is the typical quiescent current consumption of PCA9532PW,112?

    • The typical quiescent current consumption of PCA9532PW,112 is 400μA.

  10. Is there a thermal shutdown feature in PCA9532PW,112?

    • No, PCA9532PW,112 does not have a thermal shutdown feature.