MMA7455 Parallax, Inc., MMA7455 Datasheet
MMA7455
Available stocks
Related parts for MMA7455
MMA7455 Summary of contents
Page 1
... Dimensions: 0.5 x 0.6 x 0.46 in (12.7 x 15.2 x 11.7 mm) • Operating temperature: -40 to +185 °F (-40 to +85 °C) Note: Demonstration software files may be downloaded from the 28526 product page at www.parallax.com. MMA7455 3-Axis Accelerometer Module (#28526) Office: (916) 624-8333 Fax: (916) 624-8003 Sales: (888) 512-1024 Tech Support: (888) 997-8267 2 C) ...
Page 2
... DATA Pin Input Voltage Pin Current Maximum Acceleration (all axes) Copyright © Parallax Inc Enable (1) For operational ranges, see the Operating Min 0 -40 -0.5 -50 -- MMA7455 3-Axis Accelerometer Module (#28526 Pin Type Power n/a Output Output Power Input Input/Output Input Typ Max Unit -- 6 ...
Page 3
... The CLK and CS pins operate exclusively as inputs, so simpler and cheaper level shifting circuits can be used. Only a resistor and Schottky diode are required for each pin. See the Module Schematic section for details. When an external device drives the CLK or CS pin low, the I/O pin on the MMA7455L is pulled Copyright © Parallax Inc. ...
Page 4
... Schottky diode to about 0.35 V. This is plenty low enough to be read as a logic low (0) by the MMA7455L accelerometer device. When the CLK or CS pin is driven high or left floating, it gets pulled up to the local V by the 2.2kΩ resistor. Meanwhile, the diode prevents the possibility of CC higher external voltages damaging the input pin on the MMA7455L ...
Page 5
... Quick Start Guide The following is a very basic procedure to get started initializing and reading values from the Digital 3- Axis Accelerometer module. All the features of the MMA7455L accelerometer are covered in full detail in the Freescale Semiconductor MMA7455L device datasheet. Example test code as well as more advanced code demonstrations of this device for the Propeller and Basic Stamp can be found on the 28526 product page at www ...
Page 6
... SPI 3-wire mode, ±2g measurement range, and puts the device in measurement mode rather than its default standby mode. Refer to the MMA7455L device datasheet for information on proper SPI or I send and receive data. 3. The device is ready to be read by the microcontroller. Be sure to read from the correct data registers depending on whether 8-bit (± ...
Page 7
... X.XXX ± 0.005 IN ANGLE TOLERANCES: X ± 10° X.X ± 5° .050 1.27 Accelerometer position on circuit board. 599 MENLO DRIVE www.PARALLAX.com ROCKLIN, CA 95765 (916) 624-8333 TITLE MMA7455 3-Axis Accelerometer SCALE: 3:1 DRAWN BY K. McCullough .100 2.54 .250 6.35 DATE 20090813 Part # 28526 REV A Parent Part # --- SHEET ...