MAX732MJA/883B

Product Overview

• Category: Integrated Circuit
• Use: Digital I/O Expander
• Characteristics: High-performance, 8-bit I/O expander with I2C interface
• Package: Ceramic DIP (Dual In-line Package)
• Essence: Expand the number of available I/O pins in a microcontroller-based system
• Packaging/Quantity: Tube packaging, 1 piece per tube

Specifications

• Supply Voltage: 2.7V to 5.5V
• Number of I/O Pins: 8
• I2C Bus Compatibility: Standard-mode, Fast-mode, Fast-mode Plus
• Operating Temperature Range: -55°C to +125°C
• Input/Output Logic Levels: CMOS/TTL compatible
• Interrupt Output Pin: Yes
• Address Selection Pins: Yes

Detailed Pin Configuration

The MAX732MJA/883B has a total of 20 pins. The pin configuration is as follows:

1. VCC - Supply Voltage
2. GND - Ground
3. SDA - Serial Data Input/Output
4. SCL - Serial Clock Input
5. A0 - Address Selection Bit 0
6. A1 - Address Selection Bit 1
7. INT - Interrupt Output
8. P0 - General Purpose I/O Pin 0
9. P1 - General Purpose I/O Pin 1
10. P2 - General Purpose I/O Pin 2
11. P3 - General Purpose I/O Pin 3
12. P4 - General Purpose I/O Pin 4
13. P5 - General Purpose I/O Pin 5
14. P6 - General Purpose I/O Pin 6
15. P7 - General Purpose I/O Pin 7
16. NC - No Connection
17. NC - No Connection
18. NC - No Connection
19. NC - No Connection
20. NC - No Connection

Functional Features

• Expand the number of I/O pins available in a microcontroller-based system
• Controlled via I2C interface, allowing easy integration with various microcontrollers
• Supports standard-mode, fast-mode, and fast-mode plus I2C bus compatibility
• Interrupt output pin for efficient event-driven processing
• Address selection pins enable multiple devices to coexist on the same I2C bus

Advantages and Disadvantages

Advantages

• Provides additional I/O pins without requiring extra microcontroller pins
• Easy integration with existing microcontroller systems
• Supports different I2C bus modes for flexibility
• Interrupt output pin allows efficient event handling

Disadvantages

• Limited to 8 additional I/O pins
• Requires I2C communication protocol implementation

Working Principles

The MAX732MJA/883B is an I/O expander that communicates with a microcontroller using the I2C interface. It acts as a bridge between the microcontroller and external devices by expanding the number of available I/O pins. The microcontroller sends commands and data to the MAX732MJA/883B through the I2C bus, which then controls the state (input or output) of its I/O pins accordingly.

Detailed Application Field Plans

The MAX732MJA/883B can be used in various applications where additional I/O pins are required. Some potential application fields include:

1. Industrial automation systems
2. Home automation systems
3. Internet of Things (IoT) devices
4. Robotics
5. Sensor interfacing
6. Display control
7. Keypad scanning
8. LED matrix control

Detailed and Complete Alternative Models

1. MAX7312AUG+ - 8-bit I/O expander with push-pull outputs
2. MCP23008-E/SO - 8-bit I/O expander with I2C interface
3. PCF8574T/3,118 - Remote 8-bit I/O expander for I2C-bus applications

These alternative models provide similar functionality and can be considered as alternatives to the MAX732MJA/883B.

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