Powerful Sensing Solutions for a Better Life
DTOS
ACCELEROMETER
MXC6225XU: Fully Integrated Thermal Accelerometer
Powerful Sensing Solutions for a Better Life
DTOS
ACCELEROMETER
Fully Integrated Thermal Accelerometer
MXC6225XU
MXC6225XU -DTOS Accelerometer
© 2010 MEMSIC, Inc.
One Technology Drive, Suite 325
Andover, MA 01810, USA
Tel: +1 978 738 0900 Fax: +1 978 738 0196
www.memsic.com
Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC
for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of MEMSIC. Information presented in this document is the property of MEMSIC, Inc.,
is considered proprietary, and is not to be reproduced without the specific written permission of MEMSIC, Inc.
Document Version 1.0
page 1
Powerful Sensing Solutions for a Better Life
DTOS
ACCELEROMETER
MXC6225XU: Fully Integrated Thermal Accelerometer
Features
►
Fully Integrated Thermal Accelerometer
►
X/Y Axis, 8 bit, Acceleration A/D Output (± 2g)
►
Absolute 0G offset less than +/- 50mg
►
4-position Orientation Detection
►
Shake Detection with Interrupt
►
Programmable Shake Threshold
►
Shake Direction Detection
►
I
2
C Interface
►
Power Down Mode
►
Shock Survival Greater than 50,000 g
►
Operating Supply Voltage from 2.5V to 5.5V
►
Produces no Mechanical Sounds (“click”)
►
Package Size 3x3x1mm
General Description
The MEMSIC Digital Thermal Orientation Sensor (DTOS) is the world’s first fully-integrated orientation
sensor. Its operation is based on our patented MEMS-thermal technology and is built using a standard
0.18um CMOS process. This sensor contains no moving parts (such as a ball) and thus eliminates field-
reliability and repeatability issues associated with competitive products. It also eliminates the “click”
sounds typically heard in ball based orientation sensors. Shock survival is greater than 50,000g. This
sensor detects four orientation positions, shake and shake direction. In addition, it provides X/Y axis ac-
celeration signals with very low 0g offset. An I
2
C interface is used to communicate with this device and
an interrupt pin (INT) is provided for shake and orientation. The device also has a power down enabled
through the I
2
C interface.
Applications
►
Consumer:
Cell Phones
Digital Still Cameras (DSC)
Digital Video Cameras (DVC)
LCD TV
Toys
MP3, MP4 Players
►
Household Safety:
Fan Heaters
Halogen Lamps
Iron
Cooling Fans
Functional Block Diagram
Figure 1
This sensor is packaged in a hermetically sealed 6-pin surface mount package (3 mm x 3 mm x 1mm); the
product is RoHS compatible and operates over -20~70°C temperature range.
MXC6225XU -DTOS Accelerometer
© 2010 MEMSIC, Inc.
One Technology Drive, Suite 325
Andover, MA 01810, USA
Tel: +1 978 738 0900 Fax: +1 978 738 0196
www.memsic.com
Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC
for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of MEMSIC. Information presented in this document is the property of MEMSIC, Inc.,
is considered proprietary, and is not to be reproduced without the specific written permission of MEMSIC, Inc.
Document Version 1.0
page 2
Powerful Sensing Solutions for a Better Life
DTOS
ACCELEROMETER
MXC6225XU: Fully Integrated Thermal Accelerometer
Electrical Specifications
1
Parameter (Units)
Operating Voltage Range (V)
Supply Current (mA)
Turn-On Time (ms)
Conditions
Minimum
2.5
1
300
-20
500
+70
10
Typical
Maximum
5.5
+X
Operating Temperature Range (ºC)
VDD Rise Time (ms)
2
Notes:
1
All specifications are at 3V and room temperature unless otherwise noted.
2
Maximum allowable power supply rise time
from 0.25V to 2.5V (minimum). Slower VDD rise time may cause erroneous data retrieval from OTP memory at power-up.
Figure 2
Top View
Sensor Characteristics
1
Parameter (Units)
Measurement Range (g)
Alignment Error (º)
Sensitivity Error(%)
Sensitivity (LSB/g)
Sensitivity Drift Over Temperature (%)
Zero g Offset Bias Level (mg)
Conditions
X/Y Axis
X/Y Axis
X/Y Axis
X/Y Axis
Delta from 25 ºC
(-20 ºC - 70 ºC)
X/Y Axis absolute
value (-20 ºC -
70 ºC)
-50
-5
± 1.0
0
64
15
0
50
Minimum
Typical
Maximum
± 2.0
± 2.0
5
© 2010 MEMSIC, Inc.
One Technology Drive, Suite 325
Andover, MA 01810, USA
Tel: +1 978 738 0900 Fax: +1 978 738 0196
www.memsic.com
+Y
3dB Signal Bandwidth (Hz)
Notes:
1
All specifications are at 3V and room temperature unless otherwise noted.
10
Figure 3
Bottom View
Pin Description: LCC6 Package
Pin
1
Name
INT
Description
This pin is the DTOS interrupt output. The logic level on this pin reflects the state of the INT
bit in the STATUS register. INT is set when the orientation differs from the last orientation
read by the processor, or a shake event is detected. INT is cleared upon the read of the
STATUS register.
During normal operation, this pin should be left floating.
This is the power supply input for the DTOS. The DC voltage should be between 2.5 and 5.5
volts.
This pin is the serial clock line for the I
2
C interface on the DTOS. Since the DTOS only
operates as a slave device, this pin is always an input.
This pin is the serial data line for the I
2
C interface on the DTOS. It is an I/O pin that functions
as an input during a write to the DTOS, and an output during a read from the DTOS.
This is the ground pin for the DTOS.
MXC6225XU -DTOS Accelerometer
Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC
for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of MEMSIC. Information presented in this document is the property of MEMSIC, Inc.,
is considered proprietary, and is not to be reproduced without the specific written permission of MEMSIC, Inc.
2
NC
VDD
I
2
C SCL
I
2
C SDA
GND
Figure 4
3
4
5
LCC6 Package Drawing
Package Thickness: 1.05mm +/- 0.1mm
6
Document Version 1.0
page 3
Powerful Sensing Solutions for a Better Life
DTOS
ACCELEROMETER
MXC6225XU: Fully Integrated Thermal Accelerometer
Circuit Schematics
Figure 5
Note:
R1 and R2 are pull-up resistors, the value can be determined by customer
INT does not need any pull-up/pull-down resistor
If INT is not used, just keep it disconnected, don’t pull up or pull down
Landing Pattern
Figure 6
MXC6225XU -DTOS Accelerometer
© 2010 MEMSIC, Inc.
One Technology Drive, Suite 325
Andover, MA 01810, USA
Tel: +1 978 738 0900 Fax: +1 978 738 0196
www.memsic.com
Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC
for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of MEMSIC. Information presented in this document is the property of MEMSIC, Inc.,
is considered proprietary, and is not to be reproduced without the specific written permission of MEMSIC, Inc.
Document Version 1.0
page 4
Powerful Sensing Solutions for a Better Life
DTOS
ACCELEROMETER
MXC6225XU: Fully Integrated Thermal Accelerometer
Digital Parameters
Symbol
VIH
VIL
Parameter (Units)
High Level Input Voltage (Volts)
Low Level Input Voltage (Volts)
Hysteresis of Schmitt Trigger Input (Volts)
IIL
VOL
Input Leakage, All Inputs (uA)
Low Level Output Voltage (Volts)
0.1
-10
10
0.4
Minimum
0.8*VDD
0.2*VDD
Typical
Maximum
Digital Switching Characteristics
Symbol
tr
tf
f
SCL
td1
td2
td3
td4
td5
td6
td7
td8
Parameter (Units)
Rise Time (us)
Fall Time (us)
SCK Clock Frequency (kHz)
SCL Low Time (us)
SCL High Time (us)
Data Hold Time (us)
Data Set-Up Time (us)
Start Set-Up Time (us)
Start Hold Time (us)
Stop Set-Up Time (us)
Bus Free Time Between Start and Stop (us)
0
1.3
0.6
0
0.1
0.6
0.6
0.6
1.3
0.9
Minimum
Typical
Maximum
0.3
0.3
400
Figure 7
MXC6225XU -DTOS Accelerometer
Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC
for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of MEMSIC. Information presented in this document is the property of MEMSIC, Inc.,
is considered proprietary, and is not to be reproduced without the specific written permission of MEMSIC, Inc.
© 2010 MEMSIC, Inc.
One Technology Drive, Suite 325
Andover, MA 01810, USA
Tel: +1 978 738 0900 Fax: +1 978 738 0196
www.memsic.com
Document Version 1.0
page 5
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