MMA5212WR2

Product Overview

The MMA5212WR2 belongs to the category of motion sensors and is commonly used in various electronic devices for detecting orientation, acceleration, and tilt. This sensor is known for its compact size, high accuracy, and low power consumption. The package includes a single sensor unit with essential documentation and support materials.

Basic Information

• Category: Motion Sensor
• Use: Detecting orientation, acceleration, and tilt in electronic devices
• Characteristics: Compact size, high accuracy, low power consumption
• Package Contents: Single sensor unit, documentation, support materials
• Packaging/Quantity: Individual units

Specifications

• Dimensions: 3mm x 3mm x 1mm
• Operating Voltage: 1.8V - 3.6V
• Output Data Rate: 100 Hz
• Sensitivity: ±2g, ±4g, ±8g, ±16g
• Interface: I2C, SPI

Detailed Pin Configuration

The MMA5212WR2 features a standard pin configuration with specific pins designated for power, ground, and communication interfaces. The detailed pinout is as follows:

| Pin Name | Function | |----------|---------------| | VDD | Power Supply | | GND | Ground | | SDA | I2C Data Line | | SCL | I2C Clock Line | | CS | Chip Select | | INT1 | Interrupt 1 | | INT2 | Interrupt 2 |

Functional Features

• High Accuracy: Provides precise measurement of orientation and acceleration.
• Low Power Consumption: Ensures minimal energy usage, suitable for battery-powered devices.
• Small Form Factor: Compact size enables integration into space-constrained designs.
• Multiple Sensitivity Options: Offers flexibility with selectable sensitivity ranges.

Advantages and Disadvantages

Advantages

• Accurate measurement of orientation and acceleration
• Low power consumption
• Compact size for easy integration

Disadvantages

• Limited to specific sensitivity ranges
• Requires careful handling during installation due to its small size

Working Principles

The MMA5212WR2 operates based on the principles of microelectromechanical systems (MEMS) technology. It utilizes internal structures that respond to external forces, enabling the detection of orientation and acceleration. When subjected to movement or tilt, the sensor generates corresponding electrical signals, which are then processed to determine the device's spatial positioning.

Detailed Application Field Plans

The MMA5212WR2 finds extensive application in various fields, including: - Consumer Electronics: Used in smartphones, tablets, and gaming devices for screen orientation and motion-based controls. - Automotive: Integrated into vehicle navigation systems and stability control mechanisms. - Industrial Automation: Employed in machinery monitoring and safety systems for detecting sudden movements or tilts.

Detailed and Complete Alternative Models

• MMA8452Q: Offers similar functionality with additional features such as tap detection and freefall detection.
• ADXL345: Provides comparable performance with a wider sensitivity range and enhanced digital output capabilities.

In conclusion, the MMA5212WR2 motion sensor serves as a reliable solution for detecting orientation and acceleration in electronic devices, offering high accuracy and low power consumption. Its compact size and multiple sensitivity options make it suitable for diverse applications across consumer electronics, automotive, and industrial automation sectors.

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