MC3610 3-Axis Accelerometer
Preliminary Datasheet
GENERAL DESCRIPTION
FEATURES
Range, Sampling & Power
The MC3610 is an ultra-low power, low-
noise, integrated digital output 3-axis
accelerometer with a feature set optimized
for wearables and consumer product
motion sensing. Applications include
wearable consumer products, IoT devices,
user interface control, gaming motion input,
electronic compass tilt compensation for
cell phones, game controllers, remote
controls and portable media products.
±2,4,8,12 or 16g ranges
8, 10 or 12-bit resolution with FIFO
o
14-bit single samples
0.4 - 400 samples/sec
Ultra-Low Power with FIFO
o
0.6 μA typical sniff current
o
1.3 μA typical current @ 25Hz
o
4.7 μA typical current @ 50Hz
o
14 μA @ 50Hz, low noise
Low noise and low power are inherent in
the monolithic fabrication approach, where
the MEMS accelerometer is integrated in a
single-chip with the electronics integrated
circuit.
Simple System Integration
I2C interface, up to 400 kHz
SPI Interface, up to 2 MHz
2 × 2 × 0.94 mm 12-pin package
Single-chip 3D silicon MEMS
Low noise down to 280 µg / √Hz
In the MC3610 the internal sample rate can
be set from 0.4 to 400 samples / second.
Specific tap or sample acquisition
conditions can trigger an interrupt to a
remote MCU. Alternatively, the device
supports the reading of sample and event
status via polling.
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MC3610 3-Axis Accelerometer
Preliminary Datasheet
TABLE OF CONTENTS
1
2
3
3.1
3.2
3.3
3.4
3.5
Order Information............................................................................................................. 5
Functional Block Diagram ................................................................................................ 6
Packaging and Pin Description ........................................................................................ 7
Package Outline ................................................................................................................... 7
Package Orientation ............................................................................................................. 8
Pin Description ..................................................................................................................... 9
Typical Application Circuits ................................................................................................ 10
Tape and Reel ................................................................................................................... 12
4
4.1
4.2
4.3
Specifications................................................................................................................. 14
Absolute Maximum Ratings ................................................................................................ 14
Sensor Characteristics ....................................................................................................... 15
Electrical and Timing Characteristics.................................................................................. 16
4.3.1
4.3.2
4.3.3
4.3.4
5
5.1
5.2
5.3
5.4
5.5
5.6
Electrical Power and Internal Characteristics ....................................................... 16
Electrical Characteristics ...................................................................................... 17
I2C Timing Characteristics ................................................................................... 18
SPI Timing Characteristics ................................................................................... 19
Sensor Sampling ................................................................................................................ 20
Offset and Gain Calibration ................................................................................................ 20
Reset ................................................................................................................................. 20
Reload ............................................................................................................................... 20
Operational Modes ............................................................................................................. 21
Mode State Machine Flow .................................................................................................. 22
General Operation ......................................................................................................... 20
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Interrupts........................................................................................................................ 23
Interrupt Block .................................................................................................................... 23
Flag Bits and Enables ........................................................................................................ 23
Interrupt on Wake (INT_WAKE) ......................................................................................... 23
Interrupt on Sample (INT_ACQ) ......................................................................................... 23
Interrupt on FIFO Empty (INT_FIFO_EMPTY) ................................................................... 23
Interrupt on FIFO Full (INT_FIFO_FULL) ........................................................................... 23
Interrupt on FIFO Threshold (INT_FIFO_THRESH) ........................................................... 24
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MC3610 3-Axis Accelerometer
6.8
Preliminary Datasheet
Servicing ............................................................................................................................ 24
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
Interfaces ....................................................................................................................... 25
SPI vs I2C Operation Modes .............................................................................................. 25
I2C Physical Interface ........................................................................................................ 25
I2C Timing.......................................................................................................................... 27
I2C Message Format .......................................................................................................... 27
SPI Physical Interface ........................................................................................................ 28
SPI Protocol ....................................................................................................................... 28
SPI Register Addressing .................................................................................................... 28
SPI Single Register Write Cycle ......................................................................................... 29
SPI Single Register Read Cycle ......................................................................................... 29
SPI Burst Register Read Cycle From Address 0x02 ........................................................... 29
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
8.15
8.16
8.17
8.18
8.19
8.20
8.21
Register Interface .......................................................................................................... 31
Register Summary ............................................................................................................. 32
(0x00) Extended Status Register 1 ..................................................................................... 34
(0x01) Extended Status Register 2 ..................................................................................... 35
(0x02 – 0x07) XOUT, YOUT & ZOUT Data Output Registers ............................................. 36
(0x08) Status Register 1..................................................................................................... 37
(0x09) Status Register 2..................................................................................................... 39
(0x10) Mode Control Register ............................................................................................ 40
(0x11) Wake Control Register ............................................................................................ 42
(0x12) Sniff Control Register .............................................................................................. 43
(0x13) Sniff Threshold Control Register ............................................................................. 44
(0x14) IO Control Register ................................................................................................. 45
(0x15) Range and Resolution Control Register .................................................................. 46
(0x16) FIFO Control Register ............................................................................................. 48
(0x17) Interrupt Control Register ........................................................................................ 49
(0x20) Drive Motion X Register .......................................................................................... 51
(0x21) Drive Motion Y Register .......................................................................................... 52
(0x22) Drive Motion Z Register........................................................................................... 53
(0x25) Precision Mode Control ........................................................................................... 54
(0x2A – 0x2B) X-Axis Offset Registers ............................................................................... 55
(0x2C – 0x2D) Y-Axis Offset Registers .............................................................................. 56
(0x2E – 0x2F) Z-Axis Offset Registers ............................................................................... 57
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MC3610 3-Axis Accelerometer
8.22
8.23
8.24
8.25
8.26
8.27
Preliminary Datasheet
(0x2B & 0x30) X-Axis Gain Registers ................................................................................. 58
(0x2D & 0x31) Y-Axis Gain Registers................................................................................. 59
(0x2F & 0x32) Z-Axis Gain Registers ................................................................................. 60
(0x35 & 0x36) X-Axis Front End Registers ......................................................................... 61
(0x37 & 0x38) Y-Axis Front End Registers ......................................................................... 62
(0x39 & 0x3A) Z-Axis Front End Registers ......................................................................... 63
9
10
11
Index of Tables .............................................................................................................. 64
Revision History ............................................................................................................. 65
Legal .............................................................................................................................. 66
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MC3610 3-Axis Accelerometer
Preliminary Datasheet
1 ORDER INFORMATION
Part Number
MC3610
Resolution
8 to 14-bit
Order Number
MC3610
Package
VLGA-12
Shipping
Tape & Reel, 5Ku
Table 1. Order Information
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