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发表于 2020-8-4 10:57:37 2929 浏览 0 回复

MMA845_datasheet

3-Axis, 12-bit/8-bit Digital Accelerometer
The MMA8452Q is a smart low-power, three-axis, capacitive micromachined accelerometer with 12 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.
The MMA8452Q has user selectable full scales of ±2g/±4g/±8g with high-pass filter filtered data as well as non-filtered data available real-time. The device can be configured to generate inertial wakeup interrupt signals from any combination of the configurable embedded functions allowing the MMA8452Q to monitor events and remain in a low power mode during periods of inactivity. The MMA8452Q is available in a 3 mm by 3 mm by 1 mm QFN package.


Features
> 1.95V to 3.6V supply voltage
> 1.6V to 3.6V interface voltage
> ±2g/±4g/±8g dynamically selectable full-scale
>  Output Data Rates (ODR) from 1.56 Hz to 800 Hz
> 99 μg/√Hz noise
>  12-bit and 8-bit digital output
>  I2C digital output interface
>  Two programmable interrupt pins for six interrupt sources

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