LIS331EB datasheet, PDF - EEWORLD Datasheet

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LIS331EB: DescriptionSPECIALTY ANALOG CIRCUIT, BGA16, 3 X 3 MM, 1 MM HEIGHT, GREEN, LGA-16; CategoryAnalog mixed-signal IC The signal circuit; File Size1MB，60 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

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LIS331EB Overview

SPECIALTY ANALOG CIRCUIT, BGA16, 3 X 3 MM, 1 MM HEIGHT, GREEN, LGA-16

LIS331EB Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	STMicroelectronics
package instruction	3 X 3 MM, 1 MM HEIGHT, GREEN, LGA-16
Reach Compliance Code	compliant
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	S-XBGA-B16
length	3 mm
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	UNSPECIFIED
encapsulated code	VFLGA
Encapsulate equivalent code	LCC16,.12SQ,20
Package shape	SQUARE
Package form	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
power supply	2.5 V
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	1.71 V
Nominal supply voltage (Vsup)	2.5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal form	BUTT
Terminal pitch	0.5 mm
Terminal location	BOTTOM
width	3 mm

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LIS331EB

iNEMO-A advanced MEMS:

3D high-performance accelerometer and signal processor

Datasheet

production data

Applications



Sensor hubs

Sensor fusion

Gaming and virtual reality input devices

LBS and augmented reality

Enhanced navigation and motion tracking

Vibration monitoring and compensation

Pedometers

LGA-16 (3x3x1 mm)

Features



Motion sensor:

– Ultra-low-power mode consumption down

to 10

μA

–

2g/±4g/±6g/8g/16g

selectable full scale

– Data rate: 3.125 Hz to 1.6 kHz

– 16-bit data output

– 2 embedded state machines

– Embedded self-test

– 10000

high shock survivability

– ECOPACK

RoHS and “Green” compliant



Signal processor:

– Brain: ARM-based, 32-bit Cortex-M0 CPU

core

– 64 Kbyte Flash memory

– 128 Kbyte SRAM including 64 Kbyte with

error code correction (ECC)

– I

C master port

– I

C slave port

– SPI master/slave

– 4-wire UART

– 11 programmable GPIOs

– Low-power features

– 8 x 32-bit dual timers, watchdog timer

(WDG), Cortex-M0 system tick (SysTick)

timer

– Standard 4-wire JTAG and 2-wire SWD

– 80 MHz / 32 kHz RC / up to 80 MHz from

single-ended external clock

Description

The LIS331EB is an advanced low-power high-

performance smart sensor system which includes

a three-axis linear accelerometer and Cortex-M0

core with 64 KB Flash, 128 KB SRAM, 8 dual

timers, 2 I

C (master/slave), 1 SPI (master/slave)

and 1 UART (transmitter/receiver) in a 3x3x1 mm

LGA package. The device features ultra-low-

power operational modes that allow advanced

power saving and smart sleep-to-wakeup

functions. The LIS331EB has user-selectable full

scales and is capable of measuring accelerations

with selectable output data rates up to 1.6 kHz.

An embedded self-test capability allows the user

to check the functioning of the sensor in the final

application. One possible use of the LIS331EB is

as a sensor hub. For example, the device can

collect inputs from the accelerometer

(embedded), gyroscopes, compasses, pressure

and other sensors through the master I

C and

elaborates/fuses together 9 or 10 axes (iNemo

Engine software) to provide quaternions to the

main application processor. The LIS331EB is

ECOPACK

, RoHS and “Green” compliant.

Table 1. Device summary

Order codes

LIS331EB

LIS331EBTR

Temperature

Package Packaging

range [C]

-40 to +85

LGA-16

Tray

Tape and

reel

February 2014

This is information on a product in full production.

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Contents

LIS331EB

Contents

Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.1

1.2

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

LIS331EB application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Accelerometer mechanical and electrical specifications . . . . . . . . . . 15

3.1

3.2

3.3

3.4

Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3.1

3.4.1

3.4.2

C - inter IC control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Zero-g level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5

3.6

3.7

3.8

Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5.1

Sensing element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

IC interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Factory calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Accelerometer digital main blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.1

4.2

State machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2.1

4.2.2

4.2.3

4.2.4

4.2.5

Bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Stream-to-FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Retrieving data from FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Accelerometer digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1

C serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.1

C operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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Contents

Accelerometer register mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Accelerometer register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

7.10

7.11

7.12

7.13

7.14

7.15

7.16

7.17

7.18

7.19

7.20

7.21

7.22

7.23

7.24

7.25

7.26

7.27

7.28

7.29

7.30

CTRL_REG4 (20h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CTRL_REG3 (23h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

CTRL_REG5 (24h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

CTRL_REG6 (25h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

STATUS (27h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

OUT_T (0Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

OFF_X (10h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

OFF_Y (11h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

OFF_Z (12h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

CS_X (13h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

CS_Y (14h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

CS_Z (15h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

LC (16h - 17h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

STAT (18h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

VFC_1 (1Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

VFC_2 (1Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

VFC_3 (1Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

VFC_4 (1Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

THRS3 (1Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

OUT_X (28h - 29h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

OUT_Y (2Ah - 2Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

OUT_Z (2Ch - 2Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

FIFO_CTRL (2Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

FIFO_SRC (2Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

CTRL_REG1 (21h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

STx_1 (40h-4Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

TIM4_1 (50h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

TIM3_1 (51h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

TIM2_1 (52h - 53h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

TIM1_1 (54h - 55h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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Contents

LIS331EB

7.31

7.32

7.33

7.34

7.35

7.36

7.37

7.38

7.39

7.40

7.41

7.42

7.43

7.44

7.45

7.46

7.47

7.48

7.49

7.50

7.51

7.52

7.53

7.54

7.55

THRS2_1 (56h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

THRS1_1 (57h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

MASK1_B (59h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

MASK1_A (5Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

SETT1 (5Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

PR1 (5Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

TC1 (5Dh-5Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

OUTS1 (5Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

PEAK1 (19h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

CTRL_REG2 (22h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

STx_2 (60h-6Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

TIM4_2 (70h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

TIM3_2 (71h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

TIM2_2 (72h - 73h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

TIM1_2 (74h - 75h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

THRS2_2 (76h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

THRS1_2 (77h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

MASK2_B (79h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

MASK2_A (7Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

SETT2 (7Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

PR2 (7Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

TC2 (7Dh-7Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

OUTS2 (7Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

PEAK2 (1Ah) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

DES2 (78h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Microprocessor electrical specifications . . . . . . . . . . . . . . . . . . . . . . . 46

8.1

8.2

8.3

External clock input pin (GPIO5) characteristics . . . . . . . . . . . . . . . . . . . 47

Internal high-speed RC oscillator (HSRCOSC) characteristics . . . . . . . . 47

Internal low-speed RC oscillator (LSRCOSC) characteristics . . . . . . . . . 47

Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

9.1

ARM Cortex-M0 core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

9.1.1

Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . 48

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9.2

9.3

9.4

9.5

9.6

9.7

9.8

Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Reset management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 51

Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

9.8.1

9.8.2

9.8.3

Dual timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Watchdog (WDG) timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

System tick (SysTick) timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

I²C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Universal asynchronous receiver transmitter (UART) . . . . . . . . . . . . . . 53

Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.9

Communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.9.1

9.9.2

9.9.3

9.10

JTAG and SW debug support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

10.1

Microprocessor operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

11.1

11.2

Accelerometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

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