Product Brief
ST sensor embeds complex motion-recognition capabilities
Ismini Scouras11/3/2011 2:51 PM EDT
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STMicroelectronics
is touting its latest sensor as the industry's first three-axis high-resolution accelerometer with two embedded finite-state
machines. These programmable blocks enable custom motion recognition inside the sensor, reducing system complexity and power consumption in motion-sensitive mobile phones and other smart consumer devices that let users answer calls, turn the ringer on or off, or launch applications like a pedometer, with a defined motion.
The embedded finite-state machines allow the user to implement customized motion-detection-based applications with a high level of flexibility, reducing the workload of the microprocessor by moving programming functionality inside the sensor. These basic programs identify specific motions or gestures, custom-defined in the instruction set that runs inside the sensor firmware, and initiate associated actions or applications.
ST's LIS3DSH accelerometer provides accurate output across full-scale ranges of ±2g/±4g/±8g/±16g and boasts excellent stability over time and temperature. Other features include power-down and sleep modes, an embedded FIFO (first-in first-out) memory block, a temperature sensor, and a self-test function.
Key highlights:
- Wide supply voltage, 1.71 V to 3.6 V
- Independent IOs supply (1.8 V) and supply voltage compatible
- Ultra low-power consumption
- ±2g/±4g/±6g/±8g/±16g dynamically selectable full-scale
- I2C/SPI digital output interface
- 16-bit data output
- Programmable embedded state machines
- Embedded temperature sensor
- Embedded self-test
- Embedded FIFO
- 10000 g high shock survivability
- ECOPACK ROHS compliant
Pricing: $1.20 in quantities of 1,000 pieces.
Availability: ST's LIS3DSH three-axis linear accelerometer with embedded finite-state machines will start mass production in Q1 2012.
Datasheet information can be found here.
This article originally appeared on EDN.
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