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PDF MMA8453Q Data sheet ( Hoja de datos )
| Número de pieza | MMA8453Q | |
| Descripción | 10-bit/8-bit digital accelerometer | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MMA8453Q (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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NXP Semiconductors
Data sheet: Technical data
Document Number: MMA8453Q
Rev. 7.0, 04/2016
MMA8453Q, 3-axis, 10-bit/8-bit
digital accelerometer
MMA8453Q
The MMA8453Q is a smart, low-power, three-axis, capacitive, micromachined
accelerometer with 10 bits of resolution. This accelerometer is packed with
embedded functions with flexible user programmable options, configurable to two
interrupt pins. Embedded interrupt functions allow for overall power savings
relieving the host processor from continuously polling data.
Top and bottom view
The MMA8453Q has user selectable full scales of ±2 g/±4 g/±8 g. The device can
be configured to generate inertial wakeup interrupt signals from any combination
of the configurable embedded functions allowing the MMA8453Q to monitor
events and remain in a low-power mode during periods of inactivity. The
MMA8453Q is available in a 16-pin QFN, 3 mm x 3 mm x 1 mm package.
Features
• 1.95 V to 3.6 V supply voltage
• 1.6 V to 3.6 V interface voltage
• ±2 g/±4 g/±8 g dynamically selectable full-scale
16-pin QFN
3 mm x 3 mm x 1 mm
• Output data rates (ODR) from 1.56 Hz to 800 Hz
• 99 μg/√Hz noise
• 10-bit and 8-bit digital output
• I2C digital output interface (operates to 2.25 MHz with 4.7 kΩ pullup)
Top view
• Two programmable interrupt pins for six interrupt sources
• Three embedded channels of motion detection
– Freefall or motion detection: one channel
VDDIO 1
16 15 14
13
– Pulse detection: one channel
– Jolt detection: one channel
• Orientation (portrait/landscape) detection with set hysteresis
BYP 2
DNC 3
12
11
• Automatic ODR change for auto-wake and return to sleep
• Self-test
• Current consumption: 6 μA to 165 μA
SCL 4
GND 5
10
9
Typical applications
678
• E-compass applications
• Static orientation detection (portrait/landscape, up/down, left/right, back/front
position identification)
• Notebook, e-reader, and laptop tumble and freefall detection
Pin connections
• Real-time orientation detection (virtual reality and gaming 3D user position feedback)
• Real-time activity analysis (pedometer step counting, freefall drop detection for HDD, dead-reckoning GPS backup)
• Motion detection for portable product power saving (auto-sleep and auto-wake for cell phone, PDA, GPS, gaming)
• Shock and vibration monitoring (mechatronic compensation, shipping and warranty usage logging)
• User interface (menu scrolling by orientation change, tap detection for button replacement)
NC
GND
INT1
GND
INT2
Part number
MMA8453QT
MMA8453QR1
Ordering information
Temperature range
Package description
-40°C to +85°C
QFN-16
-40°C to +85°C
QFN-16
Shipping
Tray
Tape and Reel
© 2016 NXP B.V.
1 page  
Table 1. Pin description
Pin #
Pin name
Description
1
VDDIO
Internal power supply (1.62 V to 3.6 V)
2
BYP
Bypass capacitor (0.1 μF)
3
DNC
Do not connect to anything, leave pin isolated and floating.
4 SCL I2C serial clock, open drain
5
GND
Connect to ground
6
SDA
I2C serial data
7 SA0 I2C least significant bit of the device I2C address, I2C 7-bit address = 0x1C (SA0 = 0), 0x1D (SA0 = 1).
8 NC Internally not connected
9
INT2
Inertial interrupt 2, output pin
10
GND
Connect to ground
11
INT1
Inertial interrupt 1, output pin
12
GND
Connect to ground
13 NC Internally not connected
14
VDD
Power supply (1.95 V to 3.6 V)
15 NC Internally not connected
16 NC Internally not connected (can be GND or VDD)
The device power is supplied through VDD line. Power supply decoupling capacitors (100 nF ceramic plus 4.7 µF bulk, or a single
4.7 µF ceramic) should be placed as near as possible to the pins 1 and 14 of the device.
The control signals SCL, SDA, and SA0 are not tolerant of voltages more than VDDIO + 0.3 V. If VDDIO is removed, the control
signals SCL, SDA, and SA0 will clamp any logic signals with their internal ESD protection diodes.
The functions, the threshold and the timing of the two interrupt pins (INT1 and INT2) are user programmable through the I2C
interface. The SDA and SCL I2C connections are open drain and therefore require a pullup resistor as shown in the application
diagram in Figure 4.
Sensors
NXP Semiconductors
MMA8453Q
5
5 Page 
5 Functionality
The MMA8453Q is a low-power, digital output 3-axis linear accelerometer with a I2C interface and embedded logic used to detect
events and notify an external microprocessor over interrupt lines. The functionality includes the following:
• 8-bit or 10-bit data
• Four different oversampling options for compromising between resolution and current consumption based on application
requirements
• Additional low-noise mode that functions independently of the oversampling modes for higher resolution
• Low-power and auto-wake/sleep modes for conservation of current consumption
• Single/double tap with directional information one channel
• Motion detection with directional information or freefall one channel
• Transient/jolt detection based on a high-pass filter and settable threshold for detecting the change in acceleration above
a threshold with directional information one channel
• Portrait/landscape detection with trip points fixed at 30° and 60° for smooth transitions between orientations.
All functionality is available in 2 g, 4 g or 8 g dynamic ranges. There are many configuration settings for enabling all the different
functions. Separate application notes have been provided to help configure the device for each embedded functionality.
Table 8. Features of the MMA845xQ devices
Feature list
Digital resolution (bits)
Digital sensitivity (counts/g)
Data-ready interrupt
Single-pulse interrupt
Double-pulse interrupt
Directional-pulse interrupt
Auto-wake
Auto-sleep
Freefall interrupt
32-level FIFO
High-pass filter
Low-pass filter
Orientation detection portrait/landscape = 30°, landscape to portrait = 60°,
and fixed 45° threshold
Programmable orientation detection
Motion interrupt with direction
Transient detection with high-pass filter
Low-power mode
MMA8451Q MMA8452Q MMA8453Q
14
4096
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
12
1024
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
10
256
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes Yes Yes
Yes No
No
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Sensors
NXP Semiconductors
MMA8453Q
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MMA8453Q.PDF ] | |
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