MMA845X Triaxial Accelerometer Sensor Module

The MMA8451 is a smart low-power, three-axis, capacitive micromachined accelerometer with 14 bits of resolution. This accelerometer is packed with embedded functions with flexible user programmable options, configurable to two interrupt pins. Embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data. There is access to both low pass filtered data as well as high pass filtered data, which minimizes the data analysis required for jolt detection and faster transitions. The device can be configured to generate inertial wake-up interrupt signals from any combination of the configurable embedded functions allowing the MMA8451Q to monitor events and remain in a low power mode during periods of inactivity.

Specifications:

• Supply voltage: 1.95V o 3.6V
• Interface voltage: 1.6V To 3.6V
• Dynamic range: ±2g / ±4g / ±8g optional
• The output data rate (ODR) Range: 1.56Hz To 800Hz
• Noise: 99μg/√Hz
• Digital output: 12 And 8
• Digital outputs : I2C (pull-up resistor 4.7 kΩ, The highest frequency up to 2.25MHz)
• Free fall motion detection: 1 Channel
• Pulse detection: 1 Channel
• Shake detection: 1 Channel
• Power consumption: 6μA - 165μA