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AIS328DQ 데이터시트 PDF




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부품번호 AIS328DQ 기능
기능 High-performance ultra low-power 3-axis accelerometer
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


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AIS328DQ 데이터시트, 핀배열, 회로
AIS328DQ
High-performance ultra low-power 3-axis accelerometer with digital
output for automotive applications
Datasheet — production data
Features
Wide supply voltage range: 2.4 V to 3.6 V
Low voltage compatible IOs: 1.8 V
Ultra low-power mode consumption: down to
10 µA
±2g/±4g/±8g dynamically selectable full-scale
SPI / I2C digital output interface
16-bit data output
2 independent programmable interrupt
generators
System sleep/wakeup function
Extended temperature range: -40 °C to 105 °C
Embedded self-test
High shock survivability: up to 10000 g
ECOPACK® RoHS and “Green” compliant
AEC-Q100 qualification
Applications
Telematics and black boxes
In-dash car navigation
Tilt / inclination measurement
Anti-theft devices
Intelligent power saving
Impact recognition and logging
Vibration monitoring and compensation
Motion-activated functions
Table 1. Device summary
Order codes
Temperature range [° C]
AIS328DQ
AIS328DQTR
-40 to +105
-40 to +105
QFN 24 (4 x 4 x 1.8 mm3)
Description
The AIS328DQ is an ultra low-power high
performance 3-axis linear accelerometer with a
digital serial interface SPI standard output. An I2C
compatible interface is also available. The device
features ultra low-power operational modes that
allow advanced power saving and smart sleep-to-
wakeup functions. The AIS328DQ has dynamic
user-selectable full-scales of ±2g/±4g/±8g and is
capable of measuring accelerations with output
data rates from 0.5 Hz to 1 kHz. The self-test
capability allows the user to check the functioning
of the sensor in the final application. The device
may be configured to generate an interrupt signal
through inertial wakeup events, or by the position
of the device itself. Thresholds and the timing of
interrupt generators are programmable by the end
user on-the-fly. Available in a small quad flat pack
no-lead package (QFPN) with a 4x4 mm footprint,
the AIS328DQ is able to respond to the trend
towards application miniaturization, and is
guaranteed to operate over a temperature range
from -40 °C to +105 °C.
Package
QFPN 4x4x1.8 24L
QFPN 4x4x1.8 24L
Packaging
Tray
Tape and reel
April 2012
This is information on a product in full production.
Doc ID 18160 Rev 3
1/43
www.st.com
43
http://www.Datasheet4U.com




AIS328DQ pdf, 반도체, 판매, 대치품
List of tables
List of tables
AIS328DQ
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
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Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
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Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Table 35.
Table 36.
Table 37.
Table 38.
Table 39.
Table 40.
Table 41.
Table 42.
Table 43.
Table 44.
Table 45.
Table 46.
Table 47.
Table 48.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SPI slave timing values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
I²C slave timing values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Serial interface pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Serial interface pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SAD+Read/Write patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transfer when master is writing one byte to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transfer when master is writing multiple bytes to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transfer when master is receiving (reading) one byte of data from slave . . . . . . . . . . . . . 19
Transfer when master is receiving (reading) multiple bytes of data from slave . . . . . . . . . 19
Register address map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
WHO_AM_I register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CTRL_REG1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CTRL_REG1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Power mode and low-power output data rate configurations . . . . . . . . . . . . . . . . . . . . . . . 26
Normal-mode output data rate configurations and low-pass cut-off frequencies . . . . . . . . 26
CTRL_REG2 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
CTRL_REG2 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
High-pass filter mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
High-pass filter cut-off frequency configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
CTRL_REG3 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
CTRL_REG3 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Data signal on INT 1 and INT 2 pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CTRL_REG4 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CTRL_REG4 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CTRL_REG5 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
CTRL_REG5 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Sleep-to-wake configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
REFERENCE register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
REFERENCE description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
STATUS_REG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
STATUS_REG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
INT1_CFG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
INT1_CFG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Interrupt 1 source configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
INT1_SRC register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
INT1_SRC description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
INT1_THS register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
INT1_THS description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INT1_DURATION register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INT2_DURATION description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INT2_CFG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INT2_CFG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Interrupt mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4/43 Doc ID 18160 Rev 3

4페이지










AIS328DQ 전자부품, 판매, 대치품
AIS328DQ
Block diagram and pin description
1 Block diagram and pin description
1.1 Bloc k diagram
Figure 1. Block diagram
X+
Y+ CHARGE
Z+ AMPLIFIER
a MUX
Z-
Y-
X-
ADC
CONTROL
LOGIC
I2C
SPI
CS
SCL/SPC
SDA/SDO/SDI
SDO/SA0
SELF TEST
REFERENCE
TRIMMING
CIRCUITS
CLOCK
CONTROL LOGIC
INTERRUPT GEN.
INT 1
INT 2
AM10246V1
1.2 Pi
n description
Figure 2. Detectable accelerations and pin indicator
Z
19
X 18
1
24
1
Pin 1 indicator
Y
(TOP VIEW)
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
13
12
6
7
(BOTTOM VIEW)
Doc ID 18160 Rev 3
7/43

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관련 데이터시트

부품번호상세설명 및 기능제조사
AIS328DQ

High-performance ultra low-power 3-axis accelerometer

STMicroelectronics
STMicroelectronics

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