PMMA7450LR2 Freescale Semiconductor, Inc, PMMA7450LR2 Datasheet

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... MMA7450LR1 –20 to +65°C MMA7450LR2 –20 to +65°C This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2007. All rights reserved. 2 C/SPI), low power, low profile Package Shipping LGA-14 ...

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Figure 2. Simplified Accelerometer Functional Block Diagram Table 1. Maximum Ratings (Maximum ratings are the limits to which the device can be exposed without causing permanent damage.) Rating Maximum Acceleration (all axes) Analog Supply Voltage Digital I/O pins Supply Voltage ...

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Table 2. Operating Characteristics Unless otherwise noted: –20°C < T < 65°C, 2.4 V < Characteristic Analog Supply Voltage Standby Operation Mode Enable Bus Mode Digital I/O Pins Supply Voltage Standby Operation Mode Enable Bus Mode Supply Current ...

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Table 2. Operating Characteristics (Continued) Unless otherwise noted: –20°C < T < 65°C, 2.4 V < Characteristic Control Timing Wait Time for IIC/SPI ready after power on Turn On Response Time (Standby to Normal Mode) Turn Off Response ...

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The Freescale accelerometer is a surface-micromachined integrated-circuit accelerometer. The device consists of a surface micromachined capacitive sensing cell (g-cell) and a signal conditioning ASIC contained in a single package. The sensing element is sealed hermetically at the wafer level using ...

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Measurement Mode During measurement mode, continuous measurements on all three axes enabled. The g-range for 2g, 4g are selectable with 8-bit data and the g-range selectable with 10-bit data. The sample rate during measurement mode ...

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Pulse Detection Mode In pulse detection mode, both 2g/4g and 8g range are available. Measurements for x, y and z in 2g/ mode are enabled. The level detection is also enabled in this mode. The pulse detected by ...

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Filtering The 3 axis accelerometer contains digital filtering. Figure 4. Single Pulse Detection MMA7450L 8 Figure 5. Double Pulse Detection Figure 6. Negative Pulse Detection Sensors Freescale Semiconductor ...

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DIGITAL INTERFACE 2 The MMA7450L has both and SPI digital output available for a communication interface. When CS pin is used for Slave Select, SPI communication is selected. When high communication is ...

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MULTIPLE BYTES WRITE The MMA7450L automatically increments the received register address commands after a write command is received. Therefore, after following the steps of a single byte Figure 10. Multiple Byte Writes - The Master (MCU) is writing to multiple ...

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Pin Descriptions Top View INT1/DRDY INT2 N/C Reserved SDO SDA/SDI/SDO Figure 14. Pinout Description Recommended PCB Layout for Interfacing Accelerometer to Microcontroller 100uF 100uF Sensors Freescale Semiconductor BASIC CONNECTIONS Table 6. Pin Descriptions Pin No. Pin Name 1 DVDD_IO 3, ...

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NOTES: 1. Use μA capacitor power source. 2. Physical coupling distance of the accelerometer to the microcontroller should be minimal. 3. Place a ground plane beneath the accelerometer to reduce noise, the ground ...

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Table 7. User Register Summary Address Name Definition $10 XOFFL Offset drift X value (LSB) $11 XOFFH Offset drift X value (MSB) $12 YOFFL Offset drift Y value (LSB) $13 YOFFH Offset drift Y value (MSB) $14 ZOFFL Offset drift ...

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REGISTER DEFINITIONS $00 : 10bits output value X LSB (Read only XOUT [7] XOUT [6] XOUT [5] XOUT [ Signed byte data (2’s compliment): Zero G = 10’h000 Reading low byte XOUTL ...

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Y (Read only YOUT[7] YOUT [6] YOUT [5] YOUT [ Signed byte data (2’s compliment): Zero G = 8’h00 $08: 8bits output value Z (Read only ...

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User Information (Read Only: Optional UI[7] UI[6] UI[5] UI[4] 0/OTP 0/OTP 0/OTP 0/OTP UI2[7:0]: User information $0F: “Who Am I” value (Read only: Optional ID[7] ID [6] ID [5] ID [4] ...

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Offset drift Z LSB (Read/Write ZOFF[7] ZOFF[6] ZOFF[5] ZOFF[ Signed byte data (2’s compliment): User level offset trim value for Z axis Bit ZOFF[7] ZOFF[6] ZOFF[5] Weight 64 LSB 32 LSB ...

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Interrupt latch reset (Read/Write CLR_INT1 1: Clear “INT1” and LDX/LDY/LDZ or PDX/PDY/PDZ bits in “Detection source” register depending on “Detection control” reg- ister setting not ...

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Level detection threshold limit value (Read/Write LDTH[7] LDTH[6] LDTH[5] LDTH[ LDTH[7:0]: Level detection threshold value. If THOPT bit in Detection Control Register is “0” unsigned 7 bits value and ...

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SENSING DIRECTION AND OUTPUT RESPONSE The following figure shows sensing direction and the output response for 2g mode +1g = 2.45 V OUT 1.65 V OUT Z ...

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MINIMUM RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS Surface mount board layout is a critical portion of the total design. The footprint for the surface mount packages must be the correct size to ensure proper solder connection interface between the board ...

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The following are the recommended guidelines to follow for mounting LGA sensors for consumer applications. PCB MOUNTING RECOMMENDATIONS 1. The PCB land should be designed with Non Solder Mask Defined (NSMD) as shown additional metal pattern underneath ...

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PCB landpad pad = 0.6x0.9mm 0.875mm 0.2875mm 0.575mm Figure 24. Stencil Design Guidelines (detailed dimensions for corner pads not place any components or vias at a distance less than 2mm from the package land area. This may cause ...

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MMA7450L 24 PACKAGE DIMENSIONS CASE 1881-04 ISSUE D 14-LEAD LGA Sensors Freescale Semiconductor ...

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Sensors Freescale Semiconductor PACKAGE DIMENSIONS CASE 1881-04 ISSUE D 14-LEAD LGA MMA7450L 25 ...

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... Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2007. All rights reserved. ...