The MMA7660FCRA is a 3-axis accelerometer from Freescale Semiconductor, now NXP. This is a low-power, capacitive micromachined accelerometer featuring low g-cell technology. It is designed for use in mobile devices, gaming, and other applications requiring motion sensing and tilt detection.

Applications

• Mobile phones and tablets: Used for screen rotation, motion-based gaming, and activity monitoring.
• Gaming controllers: Employed to detect motion and orientation in gaming applications.
• Navigation devices: Provides tilt compensation for accurate navigation.
• Portable media players: Used for tap to control or shake to shuffle functionality.
• E-readers: Used for automatic page orientation and motion-based control.

Features

• 3-axis sensing: Measures acceleration along three orthogonal axes (X, Y, and Z).
• Low power consumption: Designed for extended battery life in portable devices.
• Digital output (I2C): Provides a digital output that is easily interfaced with microcontrollers.
• Small size: Compact design allows for easy integration into space-constrained applications.
• Tap detection: Detects single and double taps for user interface control.
• Orientation detection: Detects portrait and landscape orientation.

Benefits

• Accurate motion sensing: Provides reliable and precise acceleration data in three dimensions.
• Extended battery life: Low power consumption enables long-lasting operation in portable devices.
• Easy integration: Digital I2C interface simplifies connection to microcontrollers.
• Enhanced user experience: Enables intuitive motion-based control and user interface features.
• Reduced system cost: Integrated functionality reduces the need for external components.

Additional Details

The MMA7660FCRA operates from a 2.4V to 3.6V power supply. The sensitivity is programmable and typically around 21.33 counts/g. The output data rate is adjustable. The operating temperature range is typically -40°C to +85°C. The device is available in a small QFN package. The device is commonly used in smartphones, tablets, and wearable devices. The I2C address is configurable. It also includes a sleep mode to further reduce power consumption. Software libraries are often available to simplify integration with different microcontrollers and operating systems. The MMA7660FCRA is functionally equivalent to the MMA7660FCR with minor packaging or marking differences.