System Integration Manual - Particle · cellular modem, so it is important that you also refer to the SARA-G3 and SARA-U2-series System Integration Manual's section 1.5. Powering

SystemIntegrationManual

{{#unlesspdf-generation}}{{downloadButtonurl="../assets/pdfs/datasheets/e-series-system-

integration-manual.pdf"}}{{/unless}}

ThismanualprovidesthenecessaryguidelinestosuccessfullyintegratetheEseriesmoduleinyour

product.

Forfurtherinformationaboutthismodulepleasereferto:

Datasheet

Firmwaredevelopment

Productmanagement

https://docs.particle.io/reference/device-os/firmware/electron/

https://docs.particle.io/tutorials/device-cloud/console/

Eseriesarchitecture:

TheblockdiagrambelowsummarizesthearchitectureoftheEseriesmodule.It'skeycomponents

aretheSTM32F205microcontrollerandtheu-bloxSARAcellularmodem.Inadditiontothat,the

modulehasanonboardpowermanagementIC,3.3VDCregulator,LiPofuelgauge,andan

ParticleembeddedSIMchip.ThereisalsoroomforadditionalSPIbasedFLASHmemory

expansion.

OVERVIEW

PINOUTDIAGRAM

https://docs.particle.io./assets/images/e-series/illustrations/e0-pinout.pdf

YoucandownloadahighresolutionpinoutdiagraminaPDFversionhere.

# PIN FUNCTION DESCRIPTION

1 VIN POWER

Thispincanbeusedasaninputoroutput.Asaninput,supply5VDCto12VDCtopowertheElectron.WhentheElectronispoweredviatheUSBport,thispinwilloutputavoltageofapproximately4.8VDCduetoareversepolarityprotectionseriesSchottkydiodebetweenVBUSandVIN.Whenusedasanoutput,themaxloadonVINis1Amp.

2 GND POWER Systemground.

3 VBUS POWER ThisisconnectedtotheVBUSpowerpinoftheUSBport.


5 LiPo POWER Thisisconnectedtothe+LiPoconnector.

6 NC TBD Donotconnect.


8 PMID POWER ThisisconnectedtothePMIDpinofthePMIC.

9 3V3 POWER Thisistheoutputofthe3V3regulatorontheE0.

10 VDDA POWER ThisistheinputtotheanalogblockoftheSTM32.

11 VBAT POWERSupplytotheinternalRTC,backupregistersandSRAMwhen3V3isnotpresent(1.65to3.6VDC).


13 USB+ IO Data+pinoftheUSBport.

14 USB- IO Data-pinoftheUSBport.


16 TX IO PrimarilyusedasUARTTX,butcanalsobeusedasadigitalGPIOorPWM.

17 RX IO PrimarilyusedasUARTRX,butcanalsobeusedasadigitalGPIOorPWM.


19 WKP IOActive-highwakeuppin,wakesthemodulefromsleep/standbymodes.WhennotusedasaWAKEUP,thispincanalsobeusedasadigitalGPIO,ADCinputorPWM.CanbereferredtoasA7whenusedasanADC.

20 DAC IO12-bitDigital-to-Analog(D/A)output(0-4095),referredtoasDACorDAC1insoftware.CanalsobeusedasadigitalGPIOorADC.CanbereferredtoasA6whenusedasanADC.

21 A5 IO 12-bitAnalog-to-Digital(A/D)inputs(0-4095),andalsodigitalGPIOs.







28 B5 IO 12-bitAnalog-to-Digital(A/D)inputs(0-4095),andalsodigitalGPIOs.

29 B4 IO 12-bitAnalog-to-Digital(A/D)inputs(0-4095),andalsodigitalGPIOs.

30 B3 IO 12-bitAnalog-to-Digital(A/D)inputs(0-4095),PWMandalsodigitalGPIOs.

31 B2 IO 12-bitAnalog-to-Digital(A/D)inputs(0-4095),PWMandalsodigitalGPIOs.

32 B1 IO DigitalonlyGPIO,andPWM.

33 B0 IO DigitalonlyGPIO,andPWM.


35 D7 IO DigitalonlyGPIO.

PINDESCRIPTION

https://docs.particle.io./assets/images/e-series/illustrations/e0-pinout.pdf




39 D3 IO DigitalonlyGPIO,andPWM.





44 C5 IO DigitalonlyGPIO,andPWM.

45 C4 IO DigitalonlyGPIO,andPWM.

46 C3 IO DigitalonlyGPIO.




50 NC TBD Donotconnect.


52 BLU IO BluepinoftheRGBLED.

53 GRN IO GreenpinoftheRGBLED.

54 RED IO RedpinoftheRGBLED.

55 MODE IO ConnectedtotheMODEbuttoninput.

56 RST I Active-lowresetinput.

57 STAT O ConnectedtothechargestatuspinofthePMIC.




61 UB_USB+ IO Data+pinoftheu-bloxUSBport.

62 UB_USB- IO Data-pinoftheu-bloxUSBport.

63 UB_VUSB_DET IOUSBdetectpinoftheu-bloxUSBport.5Vonthispinenablestheu-blox'sUSBinterface.

[1]PWMisavailableonD0,D1,D2,D3,B0,B1,B2,B3,A4,A5,WKP,RX,TXwithacaveat:PWMtimer

peripheralisduplicatedontwopins(A5/D2)and(A4/D3)for11totalindependentPWMoutputs.For

example:PWMmaybeusedonA5whileD2isusedasaGPIO,orD2asaPWMwhileA5isusedas

ananaloginput.HoweverA5andD2cannotbeusedasindependentlycontrolledPWMoutputsat

thesametime.

TechnicalSpecifications

Parameter Symbol Min Typ Max Unit

SupplyInputVoltage VIN-MAX +17 V

SupplyOutputCurrent IIN-MAX-L 1 A

BatteryInputVoltage VLiPo +6 V

SupplyOutputCurrent I3V3-MAX-L 800 mA

StorageTemperature Tstg -30 +75 °C

ESDSusceptibilityHBM(HumanBodyMode) VESD 2 kV

[1]Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamage

tothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseorany

otherconditionsbeyondthoseindicatedunderrecommendedoperatingconditionsisnotimplied.

Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.

Parameter Symbol Min Typ Max Unit

SupplyInputVoltage VIN +3.88[1] +12 V

SupplyOutputVoltage VIN +4.8 V

SupplyOutputVoltage V3V3 +3.3 V

LiPoBatteryVoltage VLiPo +3.6 +4.4 V

SupplyInputVoltage VVBAT +1.65 +3.6 V

SupplyInputCurrent(VBAT) IVBAT 19 uA

OperatingCurrent(uCon,CellularON) IINavg 180 250 mA

PeakCurrent(uCon,CellularON) IINpk 800[2] 1800[3] mA

OperatingCurrent(uCon,CellularOFF) IINavg 47 50 mA

SleepCurrent(4.2VLiPo,CellularOFF) IQs 0.8 2 mA

DeepSleepCurrent(4.2VLiPo,CellularOFF) IQds 110 130 uA

OperatingTemperature Top -20 +60 °C

HumidityRangeNoncondensing,relativehumidity 95 %

Notes:

[1]Theminimuminputvoltageissoftwaredefinedwithauserselectablerangeof3.88Vto5.08Vin

80mVincrements.Outofthebox,theminimuminputvoltageissetto4.36VinorderfortheLiPo

batterytobeabletoproperlycharge.

[2]3Goperation

[3]2Goperation

ABSOLUTEMAXIMUMRATINGS[1]

RECOMMENDEDOPERATINGCONDITIONS

Design

TheEseriesmodulescanbepoweredoverVIN,VBUS,LiPooracombinationofthem.TheVINand

VBUSpinsareconnectedtotheinputofthepowermanagementICwhichhandlesregulation,

chargingandpoweringofsystem.TheVINpinisdirectlyconnectedtotheinputwhileVBUSpin

hasareversepolarityprotectiondiodesothatpoweroverVINdoesnotbackfeedintotheUSB

port.Youwillseeadropof0.43VattheinputwhenpoweredoverUSB.

Tip:MostofthepowerrequirementsoftheEseriesmodulearedictatedbytheu-blox'sSARA

cellularmodem,soitisimportantthatyoualsorefertotheSARA-G3andSARA-U2-seriesSystem

IntegrationManual'ssection1.5.

Poweringusingabattery:

TheEseriesmoduleusesTI'sBQ24195todoallofitspowermanagement.Itisdesignedtochargea

singlecellLi-IonorLi-Polymerbatterywhileintelligentlyswitchingbetweenchargingand

dischargingbasedonthepresenceofanadditionalpowersupply.Youcanpoweryourdesignwith

abatteryaloneoruseitasabackupinadditiontohavingapermanentDCsource.Thetwothings

youneedtokeepinmindwhilechoosingabatteryisitscellchemistryandmaxdischargerate.The

onboardPMIConlysupportssinglecellLiIonandLiPolymer(3.7V)chemistry.Thedischargerate

shouldbeableequaltoorgreaterthat2Atomeetthecellularmodemspeakcurrent

requirements.ThebatteryprovidedwiththeEseriesevaluationkitisratedat1,800mAHanda

dischargerateof1Cwithinternalovercurrentprotection.

PoweringoverVINalongwiththeLiPobattery

POWERSUPPLYINTERFACE

Ifyouareplanningtouseadifferentcellchemistryorvoltage,you'llhavetodesignitscharging

andmanagementseparately.

PoweringusinganexternalDCsource

VIN

TheEseriesmodulecanbepoweredfromanexternalDCsourceviatheVINpin.Thepincan

acceptvoltagesfrom3.88Vto12VDC.Forcontinuousoperationwithoutabattery,pleasespecthe

powersupplyat10Watts.Forexample,ifpoweringat5V,thesupplyshouldbeabletosupply2A

ofcurrent.

LiPo

YoucanalsobypassthePMIC'sinternalregulatorandpowerthemoduledirectlybyconnectingan

externallyregulatedDCsource(3.8Vto4.1V)totheLiPopinaslongastheVINpinisleft

disconnected.ThePMIDinternallyroutespowerfromtheLiPopintothesystemviaaFETwith

minimallosses.

VDDA

Thispinpowerstheanalogblockoftheonboardmicrocontroller.Youcanconnectthisdirectlyto

the3V3pinorpoweritseparatelywithalownoisepowersource.Ineithercase,youneedto

connectittoasourceforthemoduletobootup.

Note:Donotleavethispinunconnected.Forthemoduletobootup,youneedtotiethispinto

systems3V3orother3.3Vsupply.

Usinganexternallow-noisepowersource

VBAT

ThisisthesupplytotheinternalRTC,backupregistersandSRAM.Youcanconnectabackup

batterytoit(1.65to3.6VDC),ifyouwishtoretainRTC/RAMwhensystemsupplyisremovedor

simplytieitupto3V3.

ThefollowingisasampleschematicneededtopowerupandusetheEseriesmodule.Themodule

ispoweredoverVINwithanexternalDCpowersourcealongwithaLiPobatteryusedasabackup.

BASICSETUP

TheRGBLEDprovidesavisualaidetodetectthestateofthemodule.Twobuttons,RESETand

MODEprovidetheabilitytoputthemoduleindifferentmodes.LED1indicatesthechargingstatus

oftheLiPobattery.ThemainUSBportcanbeusedfordebuggingortoupdatethefirmwareon

themodule.

Inadditiontotheseparts,itisalsoencouragedtoaddaUSBinterfacefortheu-bloxmoduleasit

providesadditionaldebuggingchannelandcanbeusedtoupdatethefirmwareofthemodem.

TheJTAG/SWDinterfacecanbeusefultoprovisiontheproductduringmanufacturingorwhen

testing/debuggingthefirmware.

YoucanalsotakealookattheschematicandboardfilesoftheEseriesevaluationkitasa

referencedesignavailablehere.

Electricalparameters

ThesespecificationsarebasedontheSTM32F205RGT6datasheet,withreferencetoEseriespin

nomenclature.

Parameter Symbol Conditions Min Typ Max Unit

StandardI/Oinputlowlevelvoltage VIL -0.30.28*(V3V3-

2)+0.8V

I/OFT[1]inputlowlevelvoltage VIL -0.30.32*(V3V3-

2)+0.75V

StandardI/Oinputhighlevelvoltage VIH0.41*(V3V3-

2)+1.3V3V3+0.3 V

I/OFT[1]inputhighlevelvoltage VIH V3V3>2V0.42*(V3V3-

2)+15.5 V

VIH V3V3≤2V0.42*(V3V3-

2)+15.2 V

StandardI/OSchmitttriggervoltage

hysteresis[2]Vhys 200 mV

GPIOINTERFACE

I/OFTSchmitttriggervoltagehysteresis[2] Vhys 5%V3V3[3] mV

Inputleakagecurrent[4] IlkgGND≤Vio≤V3V3

GPIOs±1 µA

Inputleakagecurrent[4] Ilkg RPUVio=5V,I/O

FT3 µA

Weakpull-upequivalentresistor[5] RPU Vio=GND 30 40 50 kΩ

Weakpull-downequivalentresistor[5] RPD Vio=V3V3 30 40 50 kΩ

I/Opincapacitance CIO 5 pF

DACoutputvoltage(buffersenabledbydefault)

VDAC 0.2 V3V3-0.2 V

DACoutputresistiveload(buffersenabledbydefault)

RDAC 5 kΩ

DACoutputcapacitiveload(buffersenabledbydefault)

CDAC 50 pF

Notes:

[1]FT=Five-volttolerant.InordertosustainavoltagehigherthanV3V3+0.3theinternalpull-up/pull-

downresistorsmustbedisabled.

[2]HysteresisvoltagebetweenSchmitttriggerswitchinglevels.Basedoncharacterization,not

testedinproduction.

[3]Withaminimumof100mV.

[4]Leakagecouldbehigherthanmax.ifnegativecurrentisinjectedonadjacentpins.

[5]Pull-upandpull-downresistorsaredesignedwithatrueresistanceinserieswithswitchable

PMOS/NMOS.ThisPMOS/NMOScontributiontotheseriesresistanceisminimum(~10%order).

PeripheralType Qty Input(I)/Output(O) FT[1]/3V3[2]

Digital 30 I/O FT/3V3

Analog(ADC) 12 I 3V3

Analog(DAC) 2 O 3V3

UART 3 I/O 3V3

SPI 2 I/O 3V3

I2S 1 I/O 3V3

I2C 1 I/O FT

CAN 2 I/O 3V3[4]

USB 1 I/O 3V3

PWM 133 O 3V3

Notes:[1]FT=5.0Vtolerantpins.AllpinsexceptA3andDACare5Vtolerant(whennotinanalog

mode).Ifusedasa5Vinputthepull-up/pull-downresistormustbedisabled.

[2]3V3=3.3Vmaxpins.

[3]PWMisavailableonD0,D1,D2,D3,B0,B1,B2,B3,A4,A5,WKP,RX,TXwithacaveat:PWMtimer

peripheralisduplicatedontwopins(A5/D2)and(A4/D3)for11totalindependentPWMoutputs.For

example:PWMmaybeusedonA5whileD2isusedasaGPIO,orD2asaPWMwhileA5isusedas

ananaloginput.HoweverA5andD2cannotbeusedasindependentlycontrolledPWMoutputsat

thesametime.

[4]Technicallythesepinsare5.0Vtolerant,butsinceyouwouldn'toperatethemwitha5.0V

transceiverit'spropertoclassifythemas3.3V.

AntennainterfaceprovidedviaanIPEXMHF/U.FLreceptacle.TheinterfacehasLCESDprotection

ofXXXKV.

ParticlerecommendstheTaoglasPC104penta-band(850/900/1800/1900/2100MHz)GSMantenna.

Theantennacomeswithanadhesivebackingmakingiteasytomount.Pleaserefertoits

datasheetforfurtherdetailsonpowercharacteristicsandoptimalplacementinaproduct.

AntennaType Manufacturer MFG.Part# Gain

PCBantenna Taoglas PC104.07.0165C 1dBi~2.39dBi

Ifyouarechoosingyourownantennapleasemakesureofthefollowing:

Optimalsupportfortheoperatingfrequencybandsofthemodule.

Selectanantennacablewithminimuminsertionloss.

Selectaconnectorwith50ohmimpedance.

Selecttheantennawithappropriategainfigurethatdoesnotexceedtheregulatory

requirementsinthecountryofoperation.

ESDPrecautions

TheEseriescontainshighlysensitiveelectroniccircuitryandisanElectrostaticSensitiveDevice

(ESD).HandlinganEserieswithoutproperESDprotectionmaydestroyordamageitpermanently.

ProperESDhandlingandpackagingproceduresmustbeappliedthroughouttheprocessing,

handlingandoperationofanyapplicationthatincorporatesthemodule.ESDprecautionsshould

beimplementedontheapplicationboardwheretheEseriesismounted.Failuretoobservethese

precautionscanresultinseveredamagetotheEseries!

Packaging

ANTENNAINTERFACE

HANDLINGANDSOLDERING

https://docs.particle.io./assets/datasheets/PC104.07.0165C.pdf

DimensionsandWeight

Width=36mm

Height=43mm

Thickness=4.6mm

Weight=8gms

Pickandplace

Fiducials

Youcanusethethreefiducialsonthetoplayerforalignmentduringmachineplacementofthe

module.

Soldering

Werecommendnocleansolderpasteoverwatersolubleasitdoesnotrequireadditionalcleaning

processes.

Alloyspecification

95.5%Sn/3.9%Ag/0.6%Cu(95.5%Tin/3.9%Silver/0.6%Copper)

95.5%Sn/4.0%Ag/0.5%Cu(95.5%Tin/4.0%Silver/0.5%Copper)

Meltingtemperature:217°C

Stencilthickness:150micrometer

Reflow

Werecommendathreephaseconvectionreflowovenprocess.PleaserefertoIPC-7530guidelines

forindepthdetailsonreflowtemperatureprofiles.

TypicalreflowprofileforaPbfreesolderpaste:

RecommendedPCBlandpattern

Documents

System Integration Manual - Particle · cellular modem, so it is important that you also refer to the SARA-G3 and SARA-U2-series System Integration Manual's section 1.5. Powering