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(April 15, 2008) GENEVA — STMocroelectronics, a supplier of the MEMS devices found in many gaming and mobile multimedia applications, announced the addition of two accelerometers to its ultra-compact portfolio of devices in 4 × 4 × 1.5 mm LGA packages, with full-scale range selectable between ±2g, or ±6g for super-small applications requiring high performance.
The LIS244ALH two-axis accelerometer and LIS344ALH for three-axis applications reportedly operate at low power with high performance and resolution in low-voltage and battery-operated systems. The devices' analog outputs provide direct measurements to external circuitry, so designers can optimize external filtering and analog/digital conversion. Output circuitry is factory calibrated for sensitivity and zero-g level. The devices also include an embedded self-test function that verifies both the MEMS sensor and the embedded electrical interface chip are working correctly, according to guaranteed specifications.
Both devices provide a low-footprint, low-profile solution to motion-detection challenges in space-constrained applications including mobile phones, portable media players, digital still or video cameras, and personal navigation devices, enabling features including freefall detection, smart user interfaces, and intelligent motion-based power management that could put the application in sleep mode depending upon its orientation on a surface. Additional applications could include interactive gaming terminals, anti-theft systems, sports equipment, and health-monitoring devices.
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