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MMA7450LR2 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc |
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MMA7450LR2 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc |
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3 / 22 page  Sensors Freescale Semiconductor 3 MMA7450L Table 2. Operating Characteristics Unless otherwise noted: –20°C < TA < 65°C, 2.4 V < AVDD < 3.6 V, Acceleration = 0g, Loaded output Characteristic Symbol Min Typ Max Unit Analog Supply Voltage Standby Operation Mode Enable Bus Mode Digital I/O Pins Supply Voltage Standby Operation Mode Enable Bus Mode AVDD AVDD DVDD_IO DVDD_IO 2.4 1.71 1.71 2.8 0 1.8 1.8 3.6 AVDD 3.6 V V V V Supply Current Drain (AVDD/GND) Operation Mode Pulse Detect Function Mode Standby Mode (except data loading and I2C/SPI communication period) IDD IDD IDD — — — 400 550 5 TBD TBD TBD μA μA μA Operating Temperature Range TA -20 25 +85 °C Acceleration Range X-Axis, Y-Axis, Z-Axis gFS gFS gFS ±2 ±4 ±8 — — — — — — g g g Output Signal (TA=25°C, AVDD=2.8 V) Zero g ±2g range (25°C) 8bit ±4g range (25°C) 8bit ±8g range (25°C) 8bit ±8g range (25°C) 10bit VOFF VOFF VOFF VOFF -16 -8 -4 -16 — — — — +16 +8 +4 +16 LSB LSB LSB LSB Resolution (TA=25°C, AVDD=2.8 V) ±2g range (25°C) 8bit ±4g range (25°C) 8bit ±8g range (25°C) 8bit ±8g range (25°C) 10bit — — — — 15.6 31.2 62.4 15.6 — — — — mg mg mg mg Sensitivity (TA=25°C, AVDD=2.8 V) ±2g range (25°C) 8bit ±4g range (25°C) 8bit ±8g range (25°C) 8bit ±8g range (25°C) 10bit ΔVOUT ΔVOUT ΔVOUT ΔVOUT — — — — 64 32 16 64 — — — — LSB/g LSB/g LSB/g LSB/g Self Test Output Response Zout ΔSTZ —+64 — LSB Input High Voltage Input Low Voltage VIH VIL 0.85DVDD_io -0.3V — — DVDD_io + 0.3 0.3DVDD_io PSRR (AVDD) 0 to 20 kHz 0 to 50 kHz — — TBD TBD — — dB dB Internal Clock Frequency tCLK TBD 150 TBD kHz SPI Frequency DVDD_IO < 2.4 V DVDD_IO > 2.4 V — — 4 8 — — MHz MHz Output Data Rate (X, Y, Z set) — 125 or 250 — Hz Bandwidth for Data Measurement (User Selectable) — — 62.5 125 — — Hz Hz |
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