KIT3109MMA7260QE FREESCALE | Alldatasheet
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Technical content
© Freescale Semiconductor, Inc., 2006. All rights reserved. product with provided board mounting points. accelerometer output, are included on the evaluation board. necessary to use the evaluation board. the values of the g-Select pins correspond to.
- The “T” signifies parts shipped in trays. “R2” signifies parts shipped
- The “E” signifies a RoHS compliant development tool.
Table 1. g-Select Pin Descriptions for MMA7260QT, Table 2. g-Select Pin Descriptions for MMA7261QT,
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device “on” when VDD is applied to that pin (pin 12). Figure 1. Evaluation Board Components for KIT3109
- Connect the external power source to the Evaluation
(VDD) and Ground (VSS) using the solder pads.
- Note that the Main Power LED will turn on when the
Main Board Switch is thrown.
- Next use a pointed object to turn the Sleep Mode
Dipswitch to the ‘ON’ position.
- You will notice that the Sleep Mode LED will light up once the Sleep Mode Dip Switch is turned to the “ON” position. This means that the device will have X, Y, and Z outputs on the output pads. Sleep mode will actually be disabled and the device is now active.
- When “OFF”, no output voltages should be seen, and the LED will be off. This will mean the board is in Sleep Mode, in low power consumption. 4. Start to measure the voltages on the X, Y, and Z axes. Solder these pads to your microcontroller A/D terminals or other measuring devices. The evaluation board has pads for interfacing to a 3.3 V power source or battery. The pads on the side of the board also provide a means for connecting to the accelerometer analog output by soldering a wire from the evaluation board to another breadboard or system. The ON/OFF switch provides power to the accelerometer and helps preserve battery life if a battery is being used as the power source. S1 must be set towards the ON position for the accelerometer to function. The green LED labeled PWR is lit when power is supplied to the accelerometer. Main Board SwitchMain Power LED Sleep Mode LED Sleep Mode Dipswitch ON/OFF X,Y, ZOutput pads POWER Ground Accelerometer Output Signals
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Figure 8. Board Orientation Corresponding for the Figure 9. Board Orientation for the MMA6270QT Figure 10. Board Orientation for the MMA6280QT
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Table 3. Description of Output/Input Pads
3.3 V VDD Input voltage V DDfor Power Supply
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Figure 18. Orientation and Output Values for MMA7260QT, MMA6270QT and MMA6280QT Figure 19. Orientation and Output Values for MMA7261QT
- When positioned as shown, the Earth’s gravity will result in a positive 1g output.
- When positioned as shown, the Earth’s gravity will result in a positive 1g output.
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