MMA7660FCR1 Freescale, MMA7660FCR1 Datasheet

MMA7660FCR1

Manufacturer Part Number
MMA7660FCR1
Description
Manufacturer
Freescale
Datasheet

Specifications of MMA7660FCR1

Operating Supply Voltage (min)
2.4V
Operating Supply Voltage (typ)
2.8V
Operating Supply Voltage (max)
3.6V
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Product Depth (mm)
3mm
Product Height (mm)
1mm
Product Length (mm)
3mm
Mounting
Surface Mount
Pin Count
10
Lead Free Status / RoHS Status
Compliant

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Freescale Semiconductor
Technical Data
An Energy Efficient Solution by Freescale
© Freescale Semiconductor, Inc., 2009. All rights reserved.
3-Axis Orientation/Motion
Detection Sensor
(I
low pass filter, compensation for 0g offset and gain errors, and conversion to
6-bit digital values at a user configurable samples per second. The device can
be used for sensor data changes, product orientation, and gesture detection
through an interrupt pin (INT). The device is housed in a small 3mm x 3mm x
0.9mm DFN package.
Features
Typical Applications
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
2
MMA7660FCR1
MMA7660FCT
C). It is a very low power, low profile capacitive MEMS sensor featuring a
Part Number
The MMA7660FC is a ±1.5 g 3-Axis Accelerometer with Digital Output
Digital Output (I
3mm x 3mm x 0.9mm DFN Package
Low Power Current Consumption: Off Mode: 0.4 µA,
Standby Mode: 2 µA, Active Mode: 47 µA at 1 ODR
Configurable Samples per Second from 1 to 120 samples a second.
Low Voltage Operation:
– Analog Voltage: 2.4 V - 3.6 V
– Digital Voltage: 1.71 V - 3.6 V
Auto-Wake/Sleep Feature for Low Power Consumption
Tilt Orientation Detection for Portrait/Landscape Capability
Gesture Detection Including Shake Detection and Tap Detection
Robust Design, High Shocks Survivability (10,000 g)
RoHS Compliant
Halogen Free
Environmentally Preferred Product
Low Cost
Mobile Phone/ PMP/PDA: Orientation Detection (Portrait/Landscape),
Image Stability, Text Scroll, Motion Dialing, Tap to Mute
Laptop PC: Anti-Theft
Gaming: Motion Detection, Auto-Wake/Sleep For Low Power
Consumption
Digital Still Camera: Image Stability
2
Temperature Range
C)
–40 to +85°C
–40 to +85°C
ORDERING INFORMATION
Package
DFN-10
DFN-10
7” Tape & Reel
Shipping
Tray
RESERVED
Document Number: MMA7660FC
AVDD
AVSS
N/C
Figure 1. Pin Connections
INT
MMA7660FC: XYZ-AXIS
MMA7660FC
ACCELEROMETER
1
2
3
4
5
Bottom View
CASE 2002-03
Top View
10 LEAD
±1.5 g
DFN
Rev 7, 11/2009
10
9
8
7
6
N/C
DVDD
DVSS
SDA
SCL

Related parts for MMA7660FCR1

MMA7660FCR1 Summary of contents

Page 1

... Digital Still Camera: Image Stability ORDERING INFORMATION Part Number Temperature Range MMA7660FCT –40 to +85°C MMA7660FCR1 –40 to +85°C This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2009. All rights reserved. Package ...

Page 2

... APPENDIX A - PACKAGE REQUIREMENTS FOR MMA7660FC ............................................................................................. 25 Minimum Recommended Footprint for Surface Mounted Applications ............................................................................... 25 Soldering And Mounting Guidelines for the DFN Accelerometer Sensor Board .................................................... 25 Overview of Soldering Considerations ................................................................................................................................ 25 Halogen Content ................................................................................................................................................................. 25 PCB Mounting Recommendations ...................................................................................................................................... 25 APPENDIX B - SENSING DIRECTION ...................................................................................................................................... 27 APPENDIX C - MMA7660FC ACQUISITION CODE TABLE ..................................................................................................... 28 2 APPENDIX CHARACTERISTICS ............................................................................................................................ 30 Sensors Freescale Semiconductor MMA7660FC 2 ...

Page 3

... Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ESD And Latch-up Protection Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Modes Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Feature Summary Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Orientation Detection Logic of when Interrupt will Occur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Auto-Wake/Sleep Truth Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 User Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 ASE/AWE Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Sleep Counter Timeout Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Sensors Freescale Semiconductor MMA7660FC 3 ...

Page 4

... Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Single Byte Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Multiple Bytes Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Single Byte Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Multiple Bytes Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Package Footprint, PCB Land Pattern, and Stencil Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 PCB Land Pattern Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Product Orientation on Perpendicular Axis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Product Orientations Showing Direction for Each Axis in Composite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Sensors Freescale Semiconductor MMA7660FC 4 ...

Page 5

... Auto-Wake: Sleep Mode (uses AMSR sample rate in SR [0x08] register) Auto-Sleep: Run Mode (uses AWSR sample rate in SR [0x08] register) PMP: Portable Media Player PDA: Personal Digital Assistant DFN: Dual Flat No Lead ESD: Electro Static Discharge ODR: Output Data Rate MEMS: Microelectromechanical Systems Sensors Freescale Semiconductor MMA7660FC 5 ...

Page 6

... The capacitors should be placed close to the pins of the MMA7660FC and is recommended for testing and to adequately decouple the accelerometer from noise on the power supply. Sensors Freescale Semiconductor Table 1. Pin Description Pin # Pin Name 1 ...

Page 7

... ELECTRO STATIC DISCHARGE (ESD) WARNING: This device is sensitive to electrostatic discharge. Although the Freescale accelerometer contains internal 2000 V ESD protection circuitry, extra precaution must be taken by the user to protect the chip from ESD. A charge of over 2000 V can accumulate on the human body or associated test equipment. ...

Page 8

... A measure of the devices ability to reject an acceleration applied 90° from the true axis of sensitivity. 4. Noise is defined as quantiles given to a sample size. These are the occurrences of noise: 94% = ±1 count ±2 counts, and 1% = ±3 counts. Sensors Freescale Semiconductor < 3.6 V, 1.71 V < 2 +25°C ...

Page 9

... PRINCIPLE OF OPERATION The Freescale Accelerometer consists of a MEMS capacitive sensing g-cell and a signal conditioning ASIC contained in a single package. The sensing element is sealed hermetically at the wafer level using a bulk micro machined cap wafer. The g-cell is a mechanical structure formed from semiconductor materials (polysilicon) using masking and etching processes. ...

Page 10

... I Standby Mode MMA7660FC will respond to I Active Mode MMA7660FC will respond to I Auto-Sleep Auto-Wake Sensors Freescale Semiconductor 2 C, but no new measurements can be taken. The mode of the device is controlled through DVDD AVDD C bus cannot be Off Off MMA7660FC is powered down in both supplies. I unavailable on bus ...

Page 11

... Table 6. Feature Summary Table Orientation Change Shake Tap or Tilt Auto-Wake/Sleep Data Update NOTE: Sensor Measurements are NOT taken in Standby Mode or in Test Mode. Sensors Freescale Semiconductor Feature Will Generate Interrupt When FBINT, PLINT = 1 When SHINTX, SHINTY, SHINTZ = 1 When PDINT = 1 When ASINT = 1 When GINT = 1 ...

Page 12

... X < 0 Down |Z| < 0.8g and |X| > |Y| and X > 0 Right Left Back Front Figure 6. Orientation Detection Logic in 3-Dimensional Space Sensors Freescale Semiconductor Yg or |Y| > +1.3g |Z| < 0.8g and |Y| > |X| and Y < 0 |Z| < 0.8g and |Y| > |X| and Y > 0 Front Front Up ...

Page 13

... If the ASW bit is set, the device is powered on in, in wake state. Table 8. Auto-Wake/Sleep Truth Table Orientation Detection Change Shake Delta G (set with PD (0x0A) and PDET (0x09)) Pulse Detect (120 samples/second) Sleep Counter Elapsed Sensors Freescale Semiconductor Trigger Wake-up Reset Sleep Counter Yes Yes Yes Yes Yes Yes ...

Page 14

... Signed byte 6-bit 2’s complement data with allowable range of +31 to -32. ZOUT[ the g direction is positive the g direction is negative. If the Alert bit is set, the register was read at the same time as the device was attempting to update the contents. The register must be read again. Sensors Freescale Semiconductor Bit 7 Bit 6 Bit 5 - ...

Page 15

... Sets the 8-bit maximum count value for the 8-bit internal sleep counter in Auto-Sleep. When the 8-bit internal sleep counter reaches the value set by SC[7:0], MMA7660FC will exit Auto-Sleep and switch to the samples per second specified in AWSR[1:0] of the SR (0x08) register. Sensors Freescale Semiconductor ...

Page 16

... This interrupt does not affect the Auto-Sleep or Auto- Wake functions. The active interrupt condition (IRQ = 0 if IAH = 0, IRQ = 1 if IAH = 1) is released during the acknowledge bit of the slave address 2 transmission of the first subsequent MMA7660FC after the interrupt was asserted. Sensors Freescale Semiconductor GINT ASINT 0 ...

Page 17

... If ASE = 1, then Auto-Sleep functionality is now enabled (Table 11). The active interrupt condition (IRQ = 0 if IAH = 0, IRQ = 1 if IAH = 1) is released during the acknowledge bit of the slave address 2 transmission of the first subsequent the device after the interrupt was asserted. Sensors Freescale Semiconductor ASE AWE 0 0 ...

Page 18

... SPS 0.03125 s 64 SPS 0.0156 s 120 SPS 0.00836 s $08: Auto-Wake and Active Mode Portrait/Landscape Samples per Seconds Register (Read/Write) SR — Sample Rate Register FILT[2] FILT[1] FILT[ Sensors Freescale Semiconductor Auto-Wake (Sleep Mode) Auto-Sleep (Run Mode Maximum Range (2 ) Minimum Range (2 256 128 ...

Page 19

... For portrait/landscape detection: The device takes and averages 32 g-cell measurements every 1000 ms in Active Mode and Auto-Sleep. The update rate is 1 sample per second. These measurements update the XOUT (0x00), YOUT (0x01), and ZOUT (0x02) registers also. Sensors Freescale Semiconductor DESCRIPTION MMA7660FC 19 ...

Page 20

... AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/ landscape data in TILT (0x03) register. 111 8 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/ landscape data in TILT (0x03) register. Sensors Freescale Semiconductor DESCRIPTION DESCRIPTION MMA7660FC 20 ...

Page 21

... Tap detection debounce filtering requires 256 adjacent tap detection tests to be the same to trigger a tap event and set the Tap bit in the TILT (0x03) register, and optionally set an interrupt if PDINT is set in the INTSU (0x06) register. Tap detection response time is nominally 66.56 ms. Sensors Freescale Semiconductor D4 D3 PDTH[4] ...

Page 22

... Bit Transfer One data bit is transferred during each clock tap. See SDA SCL S START CONDITION Sensors Freescale Semiconductor t SU STA t HD DAT t F REPEAT ED ST ART CONDIT ION Figure 7. 2-Wire Serial Interface Timing Details (Figure 7) sent by a master, followed by MMA7660FC's 7-bit slave address ...

Page 23

... Any bytes received after the register address are data bytes. The first data byte goes into the internal register of the device selected by the register address. See Figure Master ST Device Address [6:0] Slave Sensors Freescale Semiconductor Figure 10, which the recipient uses to handshake a receipt of each byte of CLOCK PULSE FOR CLOCK TAP FOR ACKNOWLEDGEMENT 1 2 Figure 10 ...

Page 24

... W AK Slave Master ST Device Address [6:0] W Slave AK AK Master Slave Data [7:0] Data [7:0] Sensors Freescale Semiconductor Register Address [6: Figure 13. Multiple Bytes Write Register Address [6:0] SR Device Address [6:0] AK Figure 14. Single Byte Read Register Address [6:0] SR Device Address [6: NAK SP Data [7:0] Figure 15 ...

Page 25

... No copper traces on top layer of PCB under the package. This will cause planarity issues with board mount. Freescale DFN sensors are compliant with Restrictions on Hazardous Substances (RoHS), having halide free molding compound (green) and lead-free terminations. These terminations are compatible with tin-lead (Sn-Pb) as well as tin-silver- copper (Sn-Ag-Cu) solder paste soldering processes ...

Page 26

... Figure 16. Package Footprint, PCB Land Pattern, and Stencil Design Sensors Freescale Semiconductor Figure 17. PCB Land Pattern Detail MMA7660FC 26 ...

Page 27

... Top View XOUT @ -1g YOUT @ 0g ZOUT @ 0g XOUT @ 0g YOUT @ +1g ZOUT @ 0g XOUT @ +1g YOUT @ 0g ZOUT @ 0g Figure 18. Product Orientation on Perpendicular Axis - Figure 19. Product Orientations Showing Direction for Each Axis in Composite Sensors Freescale Semiconductor Direction of Earth’s Gravity XOUT @ 0g YOUT @ -1g ZOUT @ XOUT @ 0g YOUT @ 0g ZOUT @ +1g Side View XOUT @ 0g ...

Page 28

... Sensors Freescale Semiconductor g value Angle Angle Z 0.000g 0.00° 0.047g 2.69° 0.094g 5.38° 0.141g 8.08° 0.188g 10.81° 0.234g 13.55° 0.281g 16.33° 0.328g 19.16° ...

Page 29

... Sensors Freescale Semiconductor , continued -0.703g -44.68° -45.32° -0.750g -48.59° -41.41° -0.797g -52.83° -37.17° -0.844g -57.54° -32.46° -0.891g -62.95° -27.05° -0.938g -69.64° ...

Page 30

... Pulse Width of Spike Suppressed (2) Capacitive Load for Each Bus Line 1. Parameters tested 100% at final test at room temperature; limits at -40°C and +85°C, verified by characterization, not test in production. 2. Limits verified by characterization, not tested in production. Sensors Freescale Semiconductor Characteristics unless otherwise noted. Typical current values are at ...

Page 31

... Sensors Freescale Semiconductor PACKAGE DIMENSIONS MMA7660FC 31 ...

Page 32

... Sensors Freescale Semiconductor PACKAGE DIMENSIONS MMA7660FC 32 ...

Page 33

... Sensors Freescale Semiconductor PACKAGE DIMENSIONS MMA7660FC 33 ...

Page 34

... Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

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