The MMA7660FCR 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 MMA7660FCR 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.