PCA9533D/01,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital I/O Expander
• Characteristics: High-speed, low-power, 4-bit I2C-bus and SMBus I/O expander
• Package: SO16 (Small Outline 16-pin package)
• Essence: The PCA9533D/01,112 is a versatile digital I/O expander that provides additional input/output pins for microcontrollers or other devices.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 2.3V to 5.5V
• I/O Voltage: 1.8V to 5.5V
• Maximum Output Current: 25mA per I/O pin
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C-bus and SMBus compatible

Detailed Pin Configuration

The PCA9533D/01,112 has a total of 16 pins arranged as follows:

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| | | 1 2 3 | | | | 4 5 6 | | | | 7 8 9 | | | | 10 11 12 | | | | 13 14 15 | |_______________| ```

Pin Description: 1. SDA: Serial Data Input/Output 2. SCL: Serial Clock Input 3. RESET: Reset Input 4-7. P0-P3: General Purpose I/O Pins 8-9. VSS: Ground 10-15. NC: No Connection 16. VDD: Supply Voltage

Functional Features

• Provides 4-bit bidirectional I/O expansion
• Supports both input and output modes for each I/O pin
• Programmable polarity inversion for input pins
• Internal power-on reset
• Low standby current consumption
• Compatible with I2C-bus and SMBus protocols

Advantages and Disadvantages

Advantages: - Compact and versatile digital I/O expander - Wide operating voltage range - Low power consumption - Easy integration with microcontrollers or other devices

Disadvantages: - Limited number of I/O pins (4 bits)

Working Principles

The PCA9533D/01,112 operates as an I/O expander by communicating with a microcontroller or other devices through the I2C-bus or SMBus interface. It provides additional input/output pins that can be used for various purposes such as controlling LEDs, reading switches, or interfacing with other digital devices. The device can be configured to operate in either input or output mode for each individual pin, allowing flexibility in system design.

Detailed Application Field Plans

The PCA9533D/01,112 finds applications in various fields, including but not limited to:

1. Industrial automation: Controlling actuators, sensors, and indicators.
2. Consumer electronics: Interface expansion for smart home devices, gaming consoles, and audio/video equipment.
3. Automotive: Control modules, lighting systems, and dashboard displays.
4. Internet of Things (IoT): Expanding the I/O capabilities of IoT devices.
5. Robotics: Controlling motors, sensors, and peripheral devices.

Detailed and Complete Alternative Models

1. PCA9533PW,118: Similar functionality, available in TSSOP package.
2. PCA9554ADBR: 8-bit I2C and SMBus I/O expander with interrupt output.
3. MCP23017-E/SP: 16-bit I2C-bus I/O expander with interrupt output.

These alternative models offer similar features and can be considered as substitutes for the PCA9533D/01,112 depending on specific requirements.

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