MEMS for consumers

Freescale Semiconductor has developed a series of acceleration sensors specifically for the consumer market.

Freescale’s MMA62xxQ micro-electromechanical-systems (MEMS)-based sensors are designed for end products or embedded systems that need to measure small forces resulting from tilt, motion, positioning, shock or vibration. Designers can choose from a single family of devices featuring these five sensing functions to meet the needs of a variety of applications.

The low-g sensors range from 1.5 g to 10 g and detect movement in two directions (X and Y axes). The sensors are housed in a 6x6x1.98mm, Quad Flat No-Lead (QFN) package that is 73 percent smaller in footprint than the SOIC-20 package.

To help demonstrate the applications possible with the sensors, Freescale has developed the RD1986MMA6260Q TRIAX evaluation board. It includes two low-g accelerometers, the MC6908KX8 microcontroller (MCU), serial communication circuitry, EEPROM and a piezohorn.

The accelerometers are available now in production quantities. Suggested list price per unit in 1,000-piece quantities is $3.60 for all of the devices.

A reference design (part number RD1986MMA6260Q) is available now for $49.

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