MMA7361LCR1 datasheet by Freescale Semiconductor

MMA7361LCR1 Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the MMA7361LCR1?
  The recommended power-on sequence is to apply VDD first, followed by VSS, and then the input voltage on the CS pin. This ensures proper device operation and prevents latch-up.
• How do I configure the MMA7361LCR1 for different g-ranges?
  The MMA7361LCR1 has a fixed g-range of ±1.5g. However, you can adjust the sensitivity by changing the value of the external resistor connected to the G-SEL pin. Refer to the datasheet for the recommended resistor values for different g-ranges.
• What is the purpose of the SELFTEST pin, and how do I use it?
  The SELFTEST pin is used to perform a self-test of the accelerometer. When the SELFTEST pin is pulled high, the device performs an internal self-test, which can help diagnose any issues with the sensor. The self-test result is indicated by the ST output pin.
• How do I interface the MMA7361LCR1 with a microcontroller?
  The MMA7361LCR1 has a 3-wire serial interface (SPI) that can be easily interfaced with a microcontroller. The CS pin is used as the chip select, the SCL pin is used as the clock, and the SDI pin is used as the data input/output.
• What is the operating temperature range of the MMA7361LCR1?
  The MMA7361LCR1 has an operating temperature range of -40°C to +85°C. However, the device can be calibrated for optimal performance over a specific temperature range.