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FXLS8471Q Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc |
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FXLS8471Q Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc |
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1 / 75 page  Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. Freescale Semiconductor Document Number: FXLS8471Q Data Sheet: Technical Data Rev. 1.5, 06/2015 An Energy-Efficient Solution by Freescale © 2013-2015 Freescale Semiconductor, Inc. All rights reserved. FXLS8471Q, 3-Axis, Linear Accelerometer FXLS8471Q is a small, low-power, 3-axis, linear accelerometer in a 3 mm x 3 mm x 1 mm QFN package. FXLS8471Q has dynamically selectable acceleration full-scale ranges of ±2 g/±4 g/±8 g and 14 bits of resolution. Output data rates (ODR) are programmable from 1.563 Hz to 800 Hz. I2C and SPI serial digital interfaces are provided along with several user programmable event detection functions that can be used to reduce the overall system power consumption by off-loading the host processor. FXLS8471Q is guaranteed to operate over the extended temperature range of -40 °C to +85 °C. Features • 1.95 V to 3.6 V VDD supply voltage, 1.62 V to 3.6 V VDDIO voltage •±2 g/±4 g/±8 g dynamically selectable acceleration full-scale ranges • Output Data Rates (ODR) from 1.563 Hz to 800 Hz • Low noise: typically 99 μg/Hz in low-noise mode @ 200-Hz bandwidth • 14-bit ADC resolution: 0.244 mg/LSB in ±2 g, full-scale range • Embedded programmable acceleration event functions: — Freefall and Motion Detection — Transient Detection — Vector-Magnitude Change Detection — Pulse and Tap Detection (Single and Double) — Orientation Detection (Portrait/Landscape) • Programmable automatic ODR change using Auto-Wake and return to Sleep functions to save power. • 192-byte FIFO buffer, capable of storing up to 32 samples of X/Y/Z data • Supports 4-wire SPI interface at up to 1 MHz; I2C Normal (100 kHz) and Fast Modes (400 kHz) • Integrated accelerometer self-test function Target Markets • Industrial applications: vibration analysis, machine health monitoring, and platform stabilization • Smartphones, tablets, digital cameras, and personal navigation devices • Medical applications: patient monitoring, fall detection, and rehabilitation Applications • Shock and vibration monitoring (mechatronic compensation, shipping, and warranty usage logging) • User interface (menu scrolling by orientation change, tap detection for button replacement) • Orientation detection (portrait/landscape: up/down, left/right, back/front position identification) • Gaming and real-time activity analysis (pedometry, freefall and drop detection for hard disk drives and other devices) • Power management for mobile devices using inertial event detection 1 VDDIO 6 2 3 4 5 13 12 11 10 9 78 16 15 14 BYP Reserved SCL/SCLK GND Reserved GND INT1 SA1/CS_B INT2 16 LEAD QFN 3 mm x 3 mm x 1 mm FXLS8471Q Top View Pin Connections FXLS8471Q FX LS 84 71 Q |
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