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MMA7455LR2 Datasheet(PDF) 4 Page - Freescale Semiconductor, Inc |
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MMA7455LR2 Datasheet(HTML) 4 Page - Freescale Semiconductor, Inc |
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4 / 27 page  Sensors 4 Freescale Semiconductor MMA7455L Table 2. Operating Characteristics Unless otherwise noted: –40°C < TA < 85°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 — — — 400 400 2.5 490 490 10 μA μA μA Operating Temperature Range TA -40 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) GLVL [1:0] Zero g ±2g range (25°C) 8bit 0 1 ±4g range (25°C) 8bit 1 0 ±8g range (25°C) 8bit 0 0 ±8g range (25°C) 10bit 0 0 VOFF VOFF VOFF VOFF 107 491 128 — — 512 149 533 count count count count 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 13.9 — — 13.9 15.6 31.2 62.4 15.6 17.3 — — 17.3 count/g count/g count/g count/g 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 58 — — 58 64 32 16 64 70 — — 70 LSB/g LSB/g LSB/g LSB/g Self Test Output Response Zout ΔSTZ +48 +64 +80 LSB Input High Voltage Input Low Voltage VIH VIL 0.7 x VDD — — — — 0.35 x VDD V V Internal Clock Frequency tCLK 140 150 160 kHz SPI Frequency DVDD_IO < 2.4 V DVDD_IO > 2.4 V — — 4 8 — — MHz MHz Bandwidth for Data Measurement (User Selectable) DFBW 0 DFBW 1 — — 62.5 125 — — Hz Hz Output Data Rate Output Data Rate is 125 Hz when 62.5 bandwidth is selected. Output Data rate is 250 Hz when 125Hz bandwidth is selected. — — 125 250 — — Hz Hz |
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