MMA8451QR1
ACCELEROMETER 2-8G I2C 16QFN
型号
MMA8451QR1
制造商/品牌
系列
-
零件状态
Active
包装
Tape & Reel (TR)
工作温度
-40°C ~ 85°C (TA)
安装类型
Surface Mount
特征
Adjustable Bandwidth, Selectable Scale, Sleep Mode
封装/箱体
16-VFQFN
类型
Digital
输出类型
I²C
供应商器件封装
16-QFN (3x3)
电压 - 电源
1.95 V ~ 3.6 V
带宽
0.78Hz ~ 400Hz
轴
X, Y, Z
加速度范围
±2g, 4g, 8g
灵敏度（LSB/g）
4096 (±2g) ~ 1024 (±8g)
灵敏度（mV/g）
-
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有货 27423 PCS
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About Freescale Semiconductor, Inc
Freescale Semiconductor was an American semiconductor company that was founded in 1948.
The company was a leading provider of microcontrollers, sensors, and other semiconductor products for various applications in the automotive, industrial, and consumer markets.
Freescale's products were known for their high performance, low power consumption, and small form factor.
The company was acquired by NXP Semiconductors in 2015, and its products and technologies continue to be developed and sold under the NXP brand.
*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.
Freescale Semiconductor was an American semiconductor company that was founded in 1948.
The company was a leading provider of microcontrollers, sensors, and other semiconductor products for various applications in the automotive, industrial, and consumer markets.
Freescale's products were known for their high performance, low power consumption, and small form factor.
The company was acquired by NXP Semiconductors in 2015, and its products and technologies continue to be developed and sold under the NXP brand.
*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.
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NXP - MMA8451QR1 - ACCELEROMETER, 3-AXIS, 8G, 14BIT, 16QFN
Pin Count--------16
Part Category--------Integrated Circuit
Package Category--------Other
Footprint Name--------Other - 16-pin QFN 3 mm x 3 mm x 1 mm
Pin Count--------16
Part Category--------Integrated Circuit
Package Category--------Other
Footprint Name--------Other - 16-pin QFN 3 mm x 3 mm x 1 mm
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MMA8451QR1 Frequently Asked Questions (FAQs)
What is the recommended power-on sequence for the MMA8451QR1?
The recommended power-on sequence is to apply VDD first, followed by VDDIO, and then assert the reset pin (RST) low. This ensures proper initialization of the device.
How do I configure the MMA8451QR1 for low-power mode?
To configure the MMA8451QR1 for low-power mode, set the LPEN bit in the CTRL_REG1 register to 1. This reduces the current consumption to approximately 10 μA.
What is the purpose of the self-test feature in the MMA8451QR1?
The self-test feature in the MMA8451QR1 is used to verify the integrity of the sensor and the analog-to-digital converter (ADC). It applies a known stimulus to the sensor and checks the resulting output to ensure the device is functioning correctly.
How do I interpret the output data from the MMA8451QR1?
The MMA8451QR1 outputs 14-bit signed integer values representing the acceleration in each axis (x, y, z). The values are in units of mg (milli-g), with a sensitivity of 1 mg per LSB (least significant bit).
What is the maximum sampling rate of the MMA8451QR1?
The maximum sampling rate of the MMA8451QR1 is 800 Hz. However, the actual sampling rate can be adjusted by configuring the ODR (output data rate) register.
What is the recommended power-on sequence for the MMA8451QR1?
The recommended power-on sequence is to apply VDD first, followed by VDDIO, and then assert the reset pin (RST) low. This ensures proper initialization of the device.
How do I configure the MMA8451QR1 for low-power mode?
To configure the MMA8451QR1 for low-power mode, set the LPEN bit in the CTRL_REG1 register to 1. This reduces the current consumption to approximately 10 μA.
What is the purpose of the self-test feature in the MMA8451QR1?
The self-test feature in the MMA8451QR1 is used to verify the integrity of the sensor and the analog-to-digital converter (ADC). It applies a known stimulus to the sensor and checks the resulting output to ensure the device is functioning correctly.
How do I interpret the output data from the MMA8451QR1?
The MMA8451QR1 outputs 14-bit signed integer values representing the acceleration in each axis (x, y, z). The values are in units of mg (milli-g), with a sensitivity of 1 mg per LSB (least significant bit).
What is the maximum sampling rate of the MMA8451QR1?
The maximum sampling rate of the MMA8451QR1 is 800 Hz. However, the actual sampling rate can be adjusted by configuring the ODR (output data rate) register.
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