MMA7260QR2 Freescale, MMA7260QR2 Datasheet - Page 16

• Manufacturer Part Number: MMA7260QR2
• Manufacturer: Freescale

Specifications of MMA7260QR2

• Package Type: QFN EP
• Operating Supply Voltage (min): 2.2V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 6mm
• Product Height (mm): 1.45mm
• Product Length (mm): 6mm
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Compliant

that the second channel (2.430 GHz) is now being used. Press SW2 on the PC_Radio board which will set
LED3 and thus match channels with the Accelerometer Board.
The PC_Radio and the Accelerometer Boards are required to be on the same channel to work correctly. If
communication problems exist, it is possible that one of the boards is on a different channel. Reset both
boards to ensure that both are on the first channel (2.405 GHz), or push button SW2 until both boards LEDs
match.
4.11
To switch between applications, press SW1 once on the Accelerometer Board. The buzzer chirps and the
LEDs momentarily display the current application number on the LEDs.
For example, if the Accelerometer Board is running Application One (default) and SW1 is pressed, the
buzzer on the Accelerometer Board chirps and the LEDs show that Application Two is running by setting
the LEDs as follows:
To switch from Application Two to Application Three press SW1 again. The buzzer on the Accelerometer
Board chirps and the LEDs are set as follows:
This process continues until users reach Application Six. The application then rolls back over to
Application 1 and the process continues.
No changes are required to the PC_Radio to switch between applications.
16
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LED1 OFF
LED2 OFF
LED3 ON
LED4 OFF
LED1 OFF
LED2 OFF
LED3 ON
LED4 ON
Changing the Application Number
There is no reason to change channels unless the system encounters an
interference issue or users want to simultaneously run multiple
demonstrations.
Accelerometer Demonstration Application Note, Rev. 1.1
NOTE
Freescale Semiconductor