PCA9539DGVR

Product Overview

• Category: Integrated Circuit (IC)
• Use: I/O Expander
• Characteristics: 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers
• Package: VSSOP-24
• Essence: The PCA9539DGVR is a versatile I/O expander that provides 16 bits of general-purpose parallel input/output expansion for the two-line bidirectional I2C-bus (I2C) and SMBus applications.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.3V to 5.5V
• Input/Output Voltage Range: 0V to VDD
• Maximum Output Current: ±10mA
• Operating Temperature Range: -40°C to +85°C
• I2C-bus Frequency: 100kHz, 400kHz, or 1MHz
• Interrupt Output: Active-Low Open-Drain
• RoHS Compliant: Yes

Detailed Pin Configuration

The PCA9539DGVR has a total of 24 pins in the VSSOP package. The pin configuration is as follows:

1. SDA - Serial Data Input/Output
2. SCL - Serial Clock Input
3. A0 - Address Input Bit 0
4. A1 - Address Input Bit 1
5. RESET - Reset Input
6. INT - Interrupt Output
7. P00-P07 - General Purpose I/O Pins
8. P10-P17 - General Purpose I/O Pins
9. GND - Ground
10. VDD - Supply Voltage

Functional Features

• 16 programmable I/O pins
• Individual direction control for each I/O pin
• Internal power-on reset
• Noise filter on SDA/SCL inputs
• Active-low interrupt output
• Programmable interrupt polarity
• Input and output configuration registers

Advantages and Disadvantages

Advantages: - Versatile I/O expander for I2C and SMBus applications - Wide supply voltage range allows compatibility with various systems - Individual direction control provides flexibility in I/O pin usage - Internal power-on reset ensures reliable operation - Noise filter enhances signal integrity - Programmable interrupt polarity allows customization

Disadvantages: - Limited maximum output current may restrict certain applications - VSSOP package may require careful handling during assembly

Working Principles

The PCA9539DGVR operates as an I/O expander by communicating with a microcontroller or other devices through the I2C-bus or SMBus. It can be used to expand the number of available I/O pins, providing additional input or output capabilities.

The device features 16 programmable I/O pins that can be individually configured as inputs or outputs. The direction of each pin can be controlled using the internal registers. The PCA9539DGVR also includes a noise filter on the SDA and SCL inputs, which helps to improve signal integrity in noisy environments.

The interrupt output of the PCA9539DGVR is active-low and can be programmed to trigger on specific events. This allows the microcontroller to be notified when a particular condition occurs, reducing the need for continuous polling.

Detailed Application Field Plans

The PCA9539DGVR can be used in various applications where additional I/O pins are required. Some potential application fields include:

1. Industrial Automation: The device can be used to interface with sensors, actuators, and other peripheral devices in industrial automation systems.
2. Home Automation: It can be utilized in home automation systems to control lights, appliances, and other connected devices.
3. Automotive Electronics: The PCA9539DGVR can be employed in automotive electronics for controlling various functions such as lighting, climate control, and power windows.
4. Internet of Things (IoT): It can be integrated into IoT devices to expand the number of available I/O pins for sensor inputs or actuator outputs.

Detailed and Complete Alternative Models

1. PCA9555PW: 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers. Package: TSSOP-24.
2. MCP23017-E/SP: 16-Bit I/O Expander with Serial Interface. Package: DIP-28.
3. MAX7313ATE+: 16-Port I/O Expander with LED Intensity Control. Package: TQFN-16.

These alternative models offer similar functionality to the PCA9539DGVR and can be considered as alternatives based on specific requirements and preferences.

Word count: 596 words