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PCA9530D,112
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PCA9530D,112

Product Overview

Category

The PCA9530D,112 belongs to the category of I2C-bus controlled 8-bit I/O expander for open-drain outputs.

Use

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

Characteristics

  • Package: TSSOP8
  • Essence: I2C-bus interface, 5 V tolerant I/O ports
  • Packaging/Quantity: Tape and Reel (3,000 units per reel)

Specifications

The PCA9530D,112 features: - 5 V tolerant I/O ports - 400 kHz Fast-mode I2C-bus - Internal power-on reset - Noise filter on SDA/SCL inputs

Detailed Pin Configuration

The pin configuration for PCA9530D,112 is as follows:

| Pin Number | Name | Description | |------------|------|-------------| | 1 | A0 | I2C-bus slave address LSB | | 2 | A1 | I2C-bus slave address middle bit | | 3 | A2 | I2C-bus slave address MSB | | 4 | P0 | I/O port 0 | | 5 | P1 | I/O port 1 | | 6 | GND | Ground | | 7 | SCL | Serial Clock Line | | 8 | SDA | Serial Data Line |

Functional Features

The functional features of PCA9530D,112 include: - Open-drain output - Polarity inversion register - Active-low interrupt output - Power-on reset

Advantages and Disadvantages

Advantages

  • Simplifies I/O expansion of microcontrollers
  • 5 V tolerant I/O ports
  • Noise filter on SDA/SCL inputs

Disadvantages

  • Limited number of I/O ports (only 2)

Working Principles

The PCA9530D,112 operates by providing a simple solution when additional I/Os are needed while minimizing pin count and complexity. It communicates with the microcontroller through the I2C-bus interface, allowing for easy integration into various applications.

Detailed Application Field Plans

The PCA9530D,112 can be utilized in various applications including: - LED dimming control - Push button input expansion - Sensor node expansion - General digital I/O expansion

Detailed and Complete Alternative Models

Some alternative models to PCA9530D,112 include: - PCA9530DB,118 - PCA9530DP,118 - PCA9530D,118

In conclusion, the PCA9530D,112 is a versatile I/O expander that offers a simple and efficient solution for expanding the I/O capabilities of microcontrollers. Its 5 V tolerant I/O ports and ease of integration make it suitable for a wide range of applications.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng PCA9530D,112 trong giải pháp kỹ thuật

  1. What is PCA9530D,112?

    • PCA9530D,112 is an I2C-bus controlled 4-bit I/O expander with interrupt output and configuration registers.

  2. How many I/O pins does PCA9530D,112 have?

    • PCA9530D,112 has 4 I/O pins.

  3. What is the supply voltage range for PCA9530D,112?

    • The supply voltage range for PCA9530D,112 is 2.3V to 5.5V.

  4. Can PCA9530D,112 be used for LED dimming control?

    • Yes, PCA9530D,112 can be used for LED dimming control through its PWM functionality.

  5. Does PCA9530D,112 support hardware addressing?

    • Yes, PCA9530D,112 supports hardware addressing through its A0 and A1 pins.

  6. What is the maximum frequency for the PWM output of PCA9530D,112?

    • The maximum frequency for the PWM output of PCA9530D,112 is 30Hz.

  7. Is PCA9530D,112 suitable for battery-powered applications?

    • Yes, PCA9530D,112 is suitable for battery-powered applications due to its low power consumption.

  8. Can PCA9530D,112 be cascaded with other I2C devices?

    • Yes, PCA9530D,112 can be cascaded with other I2C devices as it supports the I2C-bus protocol.

  9. What is the typical quiescent current consumption of PCA9530D,112?

    • The typical quiescent current consumption of PCA9530D,112 is 400nA.

  10. Are there any application notes or reference designs available for PCA9530D,112?

    • Yes, application notes and reference designs for PCA9530D,112 are available from the manufacturer's website and technical documentation.