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STMicroelectronics : MEMS accelerometers sense motion in mobile multimedia applications



STMicroelectronics has added two new accelerometers to its ultra-compact portfolio of devices in 4 x 4 x 1.5mm LGA packages, with full-scale range selectable between ±2g, or ±6g for those super-small applications where high performance is required.

The LIS244ALH two-axis accelerometer and LIS344ALH for three-axis applications operate at low power with high performance and high resolution in low-voltage and battery-operated systems. The devices’ analog outputs provide direct measurements to external circuitry, and allow designers to optimize external filtering and analog/digital conversion. Output circuitry is factory calibrated for sensitivity and zero-g level, saving further recalibration when built into the end product. 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. These applications include 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. The wide operating temperature range from –40 to +85 degrees Celsius, combined with shock survivability up to 10,000g, ensures robust performance when operated in a variety of consumer and ISM environments.

The 16-pin LGA package uses ST’s ECOPACK® RoHS-compliant lead-free technology. Now in high-volume production, components are delivered in trays or tape and reel from $1.60 for the LIS344ALH and $1.30 for the LIS244ALH in high volumes.

About STMicroelectronics

STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2007, the Company's net revenues were $10 billion. Further information on ST can be found at www.st.com.

STMicroelectronics, Globe Park, Marlow, Bucks SL7 1YL
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Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.


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