MMA8451QT中文资料Accelerometer, I2C, 1.91-3.6V, XYZ, 2/4/8g, 14bit, QFN 16数据手册恩XP规格书

描述 Description

The NXP® MMA8451Q is a low-power, three-axis capacitive micromachined accelerometer with 14 bits of resolution, featuring:
Embedded functions with flexible user-programmable options, configurable to two interrupt pins
Embedded interrupt functions for overall power savings relieving the host processor from continuously polling data
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
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

特性 Features

• 1.95 to a 3.6-volt supply voltage
• 1.6 to 3.6-volt interface voltage
• ±2g/±4g/±8g dynamically selectable full-scale
• Output data rates (ODR) from 1.56 Hz to 800 Hz
• 99 μg/√Hz noise
• 14-bit and 8-bit digital output
• I²C digital output interface (operates to 2.25 MHz with 4.7 kΩ pull-ups)
• Two programmable interrupt pins for seven interrupt sources
• Three embedded channels of motion detection
• Freefall or motion detection: one channel
• Pulse detection: one channel
• Jolt detection: one channel
• Orientation (portrait/landscape) detection with programmable hysteresis
• Automatic ODR change for auto-wake and return to sleep
• 32 sample FIFO
• High pass filter data available per sample and through the FIFO
• Self-test
• RoHS compliant
• Current consumption: 6 μA–165 μA
• This product is included in NXP®.s product longevity program, with assured supply for a minimum of 10 years after launch

应用 Application

Industrial
•Blood Pressure Monitors
•Powered Patient Beds