SP3075ECN/TR - Sipex Corporation

SP307XE

3.3V±15kV ESD-Pr otected RS-485/RS422 Transceivers

PRELIMINARY

The SP307XE family contains differential line transceivers suitable for high speed bidirectional

communication on multipoint bus transmission lines. They are designed for balanced data

transmission and comply with both RS485 and RS422 EIA Standards. Each part contains one

differential driver and one differential receiver. SP3071E, SP3073E, SP3074E, SP3076E, and

SP3077E are full-duplex devices. SP3072E, SP3075E, and SP3078E are half-duplex devices.

SP3070E, SP3073E, SP3076E, and all half-duplex devices allow enable and disable both driver

and receiver independently. The high impedance driver output is maintained over the entire

common-mode voltage range from -7 to +12V.

The SP307XE family operates from a single 3.3V power supply. Excessive power dissipation

caused by bus contention or by output shorting is prevented by short-circuit protection and

thermal shutdown. This feature forces the driver output into high-impedance state if, during fault

conditions, the absolute value of the output current exceeds 250mA or the junction temperature

exceeds 165ºC.

Up to 256 transceivers may be connected simultaneously on a bus, but only one driver should

be enabled at a time.

The receiver contains a fail-safe feature that results in a logic high state if the inputs are

unconnected (floating), shorted or terminated.

The SP30XXE family is fabricated on BICMOS technology. All inputs and outputs have ESD

protection. Bus pins are ESD protected up to ± 15kV from Air-Gap and Human Body Model

Discharge and up to ±8kV Contact discharge (IEC 1000-4-2).

DESCRIPTION

FEATURES

■3.3V Operation

■Electrostatic Discharge (ESD) Protection for

RS-485 I/O Pins

±15kV Human Body Model (Airgap & Contact)

■True Failsafe Receiver while maintaining EIA/

TIA-485 Compatibility

■Hot Swap Input Structure on DE and RE

■Enhanced Slew-rate Limiting Facilitates Error-

Free Data Transmission on long transmission

lines (SP3070E-SP3075E)

■Low-Current Shutdown Mode (Except

SP3071E/SP3074E/SP3077E)

■Allow up to 256 Transceivers on the Bus

■ Available in Industry-Standard 8-Pin SO

Package

APPLICATIONS

■ Lighting Systems

■ Industrial Control

■ Electric Meters

■ Security Systems

■ Instrumentation

8 PIN NSOIC

SP3071E

SP3074E

SP3077E

GND

Now Available in Lead Free Packaging

These are stress ratings only and functional operation of the device at

these ratings or any other above those indicated in the operation sections

of the specifications below is not implied. Exposure to absolute maximum

rating conditions for extended periods of time may affect reliability.

VCC.....................................................................................................+6.0V

Input Voltage at control input pins (RE, DE).........................-0.3V to 6V

Driver Input Voltage (RE, DE)...............................................-0.3V to 6V

Driver Output Voltage (A, B, Y, & Z)....................................-8V to +13V

Receiver Input Voltage (A, B)..............................................-8V to +13V

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,

ambient temperature TA = +25ºC.

Continuous Power Dissipation at Ta = 70oC

8-pin SO (derate 5.88mW/oC above +70oC)................................471mW

8-pin PDIP (derate 9.29mW/oC above +70oC)............................727mW

14-pin SO (derate 8.33mW/oC above +70oC).............. .............667mW

14-pin PDIP (derate 10mW/oC above +70oC).................. ..........800mW

Operating Temperature Ranges

SP307_EC__.................................................................0ºC to +70ºC

SP307_EE__...............................................................-40ºC to +85ºC

Junction Temperature............................................................. ..+150ºC

Storage Temperature Range..........................................-65ºC to +150º C

Lead Temperature (soldering, 10s)........................................... +300º C

RETEMARAP.MYS.NIM.PYT.XAMSTINUSNOITIDNOC

tuptuOrevirDlaitnereffiDV

1erugiF,)224-SR(Ω001=LR

5.1V

1erugiF,)584-SR(Ω45=LR

daoLoN

foedutingaMniegnahC

)1(egatloVtuptuOlaitnereffiD V∆

2.0V 1erugiF,Ω001ro45=LR

tuptuOedoMnommoCrevirD

egatloV V

3V 1erugiF,Ω001ro45=LR

foedutingaMniegnahC

tuptuOedoMnommoC

)1(egatloV

V∆

2.0V 1erugiF,Ω001ro45=LR

egatloVhgiHtupnIV

2VER,ID,ED

egatloVwoLtupnIV

8.0V ER,ID,ED

siseretsyHtupnIV

SYH

001VmER,ID,ED

tnerruCtupnII

1-01AµER,ID,ED

tsriFecnadepmItupnI

)pawstoH(noitisnarT 101Ωk

ER,ED

eromwardlliwnoitisnarttsriF

)pawstoH(tnerruc

)ZdnaY(egakaeLtuptuO

)BdnaA(xelpuDlluF I

Aµ DNG=ED

V6.3roDNG=

V21+=

1±V

V7-=

tuptuOtiucriC-trohSrevirD

tnerruC I

DSO

0052±

AmV≤V7-

TUO

V21≤

052-0

ELECTRICAL CHARACTERISTICS

SRETEMARAPMYSNIMPYTXAMSTINUSNOITIDNOC

)BdnaA(tnerruCtupnI

xelpuDflaH I

B,A

521

Aµ DNG=ED

6.3roDNG=

V21+=

001-V

V7-=

dlohserhTnwodtuhS-lamrehTT

561Cº

siseretsyHnwodtuhSlamrehTT

HST

51Cº

REVIECER

dlohserhTlaitnereffiDrevieceR

egatloV V

002-521-05-Vm≤V7-V

V21≤

siseretsyHtupnIrevieceRV∆

51VmV0=bV+aV

egatloVhgiHtuptuOORV

-ccV

6.0 VI

Am1-=

egatloVwoLtuptuOORV

4.0VI

Am1=

tatnerruCtuptuOetatS-irT

revieceR I

RZO

1-/+AµV≤0

V≤

ecnatsiseRtupnIrevieceRR

69 ΩkV≤V7-

V21≤

tiucriC-trohStupuOrevieceR

tnerruC I

RZO

8±06±AmV≤V0

V≤

TNERRUCYLPPUS

tnerruCylppuSI

8.05.1

V=ED,0=ER,daoLoN

8.05.1V=ER,daoLoN

V=ED,

8.05.10=ED,0=ER,daoLoN

nwodtuhSnitnerruCylppuS

edom I

NDHS

50.01AµV=ER

DNG=ED,

NOITCETORPDSE

Bdna,A,Z,YrofnoitcetorPDSE

51±

ledoMydoBnamuH

51±)2-4-0001CEI(paGriA

8±)2-4-0001CEI(tcatnoC

Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,

ambient temperature TA = +25ºC.

RECEIVER SWITCHING CHARACTERISTICS

DRIVER SWITCHING CHARACTERISTICS

SCITSIRETCARAHCGNIHCTIWSREVIRDE2703PS&E1703PS,E0703PS

RETEMARAPLOBMYS.NIM.PYT.XAMSTINUSNOITIDNOC

yaleDnoitagaporPrevirD

HLPD

052- 0051snC

R,Fp05=

,Ω45=

3&2erugiF

LHPD

052- 0051sn

roesiRtuptuOlaitnereffiDrevirD

emiTllaF t

,RD

053- 0061snC

R,Fp05=

,Ω45=

3&2erugiF

wekStuptuOlaitnereffiDrevirD

HLPD

LHPD

WEKSD

-- 002snC

R,Fp05=

,Ω45=

3&2erugiF

etaRataDmumixaM052-- spbk

hgiHtuptuOotelbanErevirDt

HZD

-- 0052sn4erugiF

woLtuptuOotelbanErevirDt

LZD

-- 0052sn5erugiF

woLmorfemiTelbasiDrevirDt

ZLD

-- 001sn5erugiF

hgiHmorfemiTelbasiDrevirDt

ZHD

-- 001sn4erugiF

otnwodtuhSmorfelbanErevirD

hgiHtuptuO t

)NDHS(HZD

-- 0055sn4erugiF

otnwodtuhSmorfelbanErevirD

woLtuptuO t

)NDHS(LZD

-- 0055sn5erugiF

nwodtuhSotemiTt

NDHS

05002006sn

Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,

ambient temperature TA = +25ºC.

Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,

ambient temperature TA = +25ºC.

2703PS&1703PS,0703PSscitsiretcarahCgnihctiwSrevieceR

RETEMARAPLOBMYS.NIM.PYT.XAMSTINUSNOITIDNOC

yaleDnoitagaporPrevieceR

HLPR

-- 002sn

7&6erugiF,Fp51=

LHPR

-- 002sn

t(wekStuptuOrevieceR

HLPD

LHPD

WEKSR

-- 03snC

7&6erugiF,Fp51=

etaRataD052-- spbk

hgiHtuptuOotelbanErevieceRt

HZR

-- 05sn8erugiF

woLtuptuOotelbanErevieceRt

LZR

-- 05sn8erugiF

woLmorfemiTelbasiDrevieceRt

ZLR

-- 001sn8erugiF

hgiHmorfemiTelbasiDrevieceRt

ZHR

-- 001sn8erugiF

otnwodtuhSmorfelbanErevieceR

hgiHtuptuO t

)NDHS(HZR

-- 0004sn8erugiF

otnwodtuhSmorfelbanErevieceR

woLtupttuO t

)NDHS(LZR

-- 0004sn8erugiF

RECEIVER SWITCHING CHARACTERISTICS

DRIVER SWITCHING CHARACTERISTICS

Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,

ambient temperature TA = +25ºC.

Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,

ambient temperature TA = +25ºC.

5703PS&4703PS,3703PSscitsiretcarahCgnihctiwSrevieceR

RETEMARAPLOBMYS.NIM.PYT.XAMSTINUSNOITIDNOC

yaleDnoitagaporPrevieceR

HLPR

-- 002sn

7&6erugiF,Fp51=

LHPR

-- 002sn

t(wekStuptuOrevieceR

HLPD

LHPD

WEKSR

-- 03snC

7&6erugiF,Fp51=

etaRataDmumixaM005-- spbk

hgiHtuptuOotelbanErevieceRt

HZR

-- 05sn8erugiF

woLtuptuOotelbanErevieceRt

LZR

-- 05sn8erugiF

woLmorfemiTelbasiDrevieceRt

ZLR

-- 05sn8erugiF

hgiHmorfemiTelbasiDrevieceRt

ZHR

-- 05sn8erugiF

otnwodtuhSmorfelbanErevieceR

hgiHtuptuO t

)NDHS(HZR

-- 0004sn8erugiF

otnwodtuhSmorfelbanErevieceR

woLtupttuO t

)NDHS(LZR

-- 0004sn8erugiF

nwodtuhSotemiTt

NDHS

05002006sn

SCITSIRETCARAHCGNIHCTIWSREVIRDE5703PS&E4703PS,E3703PS

RETEMARAPLOBMYS.NIM.PYT.XAMSTINUSNOITIDNOC

yaleDnoitagaporPrevirD

HLPD

081-008snC

R,Fp05=

,Ω45=

3&2erugiF

LHPD

081-008sn

roesiRtuptuOlaitnereffiDrevirD

emiTllaF t

,RD

002-008snC

R,Fp05=

,Ω45=

3&2erugiF

wekStuptuOlaitnereffiDrevirD

HLPD

LHPD

WEKSD

-- 001snC

R,Fp05=

,Ω45=

3&2erugiF

etaRataD005-- spbk

hgiHtuptuOotelbanErevirDt

HZD

-- 0052sn4erugiF

woLtuptuOotelbanErevirDt

LZD

-- 0052sn5erugiF

woLmorfemiTelbasiDrevirDt

ZLD

-- 001sn5erugiF

hgiHmorfemiTelbasiDrevirDt

ZHD

-- 001sn4erugiF

otnwodtuhSmorfelbanErevirD

hgiHtuptuO t

)NDHS(HZD

-- 0054sn4erugiF

otnwodtuhSmorfelbanErevirD

woLtuptuO t

)NDHS(LZD

-- 0054sn5erugiF

nwodtuhSotemiTt

NDHS

05002006sn

DRIVER SWITCHING CHARACTERISTICS

Unless otherwise noted Vcc=+3.3±0.3V, ambient temperature Tmin < Ta < Tmax. Typical values are

at Vcc = 3.3, ambient temperature Ta = +25ºC

RECEIVER SWITCHING CHARACTERISTICS

Unless otherwise noted Vcc=+3.3±0.3V, ambient temperature Tmin < Ta < Tmax. Typical values are

at Vcc = 3.3, ambient temperature Ta = +25ºC

SCITSIRETCARAHCGNIHCTIWSREVIRDE8703PS&E7703PS,E6703PS

RETEMARAPLOBMYS.NIM.PYT.XAMSTINUSNOITIDNOC

yaleDnoitagaporPrevirD

HLPD

-- 05snC

R,Fp05=

,Ω45=

3&2erugiF

LHPD

-- 05sn

roesiRtuptuOlaitnereffiDrevirD

emiTllaF t

,RD

-- 51snC

R,Fp05=

,Ω45=

3&2erugiF

wekStuptuOlaitnereffiDrevirD

HLPD

LHPD

WEKSD

--8 snC

R,Fp05=

,Ω45=

3&2erugiF

etaRataD61-- spbM

hgiHtuptuOotelbanErevirDt

HZD

-- 051sn4erugiF

woLtuptuOotelbanErevirDt

LZD

-- 051sn5erugiF

woLmorfemiTelbasiDrevirDt

ZLD

-- 001sn5erugiF

hgiHmorfemiTelbasiDrevirDt

ZHD

-- 001sn4erugiF

otnwodtuhSmorfelbanErevirD

hgiHtuptuO t

)NDHS(HZD

-- 0081sn4erugiF

otnwodtuhSmorfelbanErevirD

woLtuptuO t

)NDHS(LZD

-- 0081sn5erugiF

nwodtuhSotemiTt

NDHS

05002006sn

8703PS&7703PS,6703PSscitsiretcarahCgnihctiwSrevieceR

RETEMARAPLOBMYS.NIM.PYT.XAMSTINUSNOITIDNOC

yaleDnoitagaporPrevieceR

HLPR

-0457sn

7&6erugiF,Fp51=

LHPR

-0457sn

t(wekStuptuOrevieceR

HLPD

LHPD

WEKSR

--8 snC

7&6erugiF,Fp51=

etaRataD61-- spbM

hgiHtuptuOotelbanErevieceRt

HZR

-- 05sn8erugiF

woLtuptuOotelbanErevieceRt

LZR

-- 05sn8erugiF

woLmorfemiTelbasiDrevieceRt

ZLR

-- 05sn8erugiF

hgiHmorfemiTelbasiDrevieceRt

ZHR

-- 05sn8erugiF

otnwodtuhSmorfelbanErevieceR

hgiHtuptuO t

)NDHS(HZR

-- 0081sn8erugiF

otnwodtuhSmorfelbanErevieceR

woLtuptuO t

)NDHS(LZR

-- 0081sn8erugiF

nwodtuhSotemiTt

NDHS

05002006sn

54Ω

50pF

3.3V

FIGURE 3. DRIVER PROPAGATION DELAY TIME TEST CIRCUIT AND TIMING DIAGRAM

FIGURE 1. DRIVER DC TEST CIRCUIT FIGURE 2. RECEIVER DC TEST CIRCUIT

tPHL

tPLH

10% 90% 10%

90%

VSKEW = tPLH - tPHL

VDIFF = V(Y) - V(Z)

VCC VCC/2

VDIFF

-VO

1/2 VO

tRtF

1/2 VO

OUT

VID

R/2

R/2 V

0 or 3V

FIGURE 4. DRIVER ENABLE & DISABLE TIMES TEST CIRCUIT & TIMING DIAGRAM

GENERATOR 50Ω

= 500Ω

OUT

= 50pF

0 or V

0.25V

OUT

= (V

+ V

)/2

ZL,

ZL(SHDN

FIGURE 6. RECEIVER PROPAGATION DELAY TEST CIRCUIT & TIMING DIAGRAM

FIGURE 5. DRIVER ENABLE & DISABLE TIMES TEST CIRCUIT & TIMING DIAGRAM

VOL

tLZ

0.25V

VCC OUT

VCC

VOM = (VOL+ VCC)/2

tZL, tZL(SHDN

VCC /2

OUT

VID

15pF

tPHL tPLH

VOL

1.5V

OUT

VOH

+1V

-1V

GENERATOR 50Ω

S1 RL = 500Ω

OUT

CL = 50pF

0 or VCC

VCC

FIGURE 8. RECEIVER ENABLE & DISABLE TIMING DIAGRAM

FIGURE 7. RECEIVER ENABLE & DISABLE TIMES TEST CIRCUIT

1.5V

-1.5V

GENERATOR 50Ω

= 15pF

1kΩ

1.5V

OUT

S1 is closed, S2 is open, S3 = -1.5V

ZL,

ZL(SHDN)

= V

1.5V

OUT

S1 is closed, S2 is open, S3 = -1.5V

0.25V

1.5V

OUT

S1 is open S2 is closed S3 = 1.5V

VOH

tHZ

0.25V

1.5V

OUT

S1 is open S2 is closed S3 = 1.5V

ZH,

ZH(SHDN)

FUNCTION TABLES

E6703PS,E3703PS,E0703PS

GNITTIMSNARTGNIVIECER

stupnIstuptuOstupnItuptuO

EREDIDZ Y EREDB,AOR

X110 1 0 X Vm05-≥1

X1010 0 X Vm002-≤0

00X Z-hgiHXX 1

10X nwodtuhS1X Z-hgiH

10 X nwodtuhS

E6703PS,E3703PS,E0703PS

GNITTIMSNARTGNIVIECER

stupnIstuptuOstupnItuptuO

IDZY B,AOR

101 Vm05-≥1

010 Vm002-≤0

detrohs/nepO1

E8703PS,E5703PS,E2703PS

GNITTIMSNARTGNIVIECER

stupnIstuptuOstupnItuptuO

EREDIDZ/BY/AEREDB,AOR

X1101 0 X Vm05-≥1

X1010 0 X Vm002-≤0

00X Z-hgiHX detrohs/nepO1daoLoN

10X nwodtuhS1XZ-hgiH

10 X nwodtuhS

PIN DESCRIPTION

XELPUDLLUF SECIVED

FLAH XELPUD SECIVED

NIP EMAN NOITCNUFNIP

E0703PSE1703PSE2703PS

E3703PSE4703PSE5703PS

E6703PSE7703PSE8703PS

REBMUNNIP

22 1OR≥)B–A(fidnawolsiERnehW.tuptuOrevieceR

.wolsiOR,Vm002-≤)B–A(fI.hgiHsiOR,Vm05-

3- 2ER

.delbanesiOR,wolsiERnehW.elbanEtuptuOrevieceR

ebdluohsER.ecnadepmihgihsiOR,hgihsiERnehW

-tohasiER.edomnwodtuhsretneotwolEDdnahgih

.tupnipaws

4- 3ED

erastuptuo,hgihsiEDnehW.elbanEtuptuOrevirD

ED.ecnadepmihgiherastuptuo,wolsiEDnehW.delbane

siED.edomnwodtuhsretneothgihERdnawolebdluohs

.tupnipaws-toha

53 4 ID

secrofIDnolevelwola,hgihEDhtiW.tupnIrevirD

,ylralimiS.hgihtuptuognitrevnidnawoltuptuognitrevninon

dnahgihtuptuognitrevninonsecrofIDnolevelhgiha

.woltuptuognitrevni

7,645DNGdnuorG

95 -Y tuptuOrevirDgnitrevninoN

016-Z tuptuOrevirDgnitrevnI

117 -B tupnIrevieceRgnitrevnI

--7B tuptuOrevirDgnitrevnIdnatupnIrevieceRgnitrevnI

218-A tupnIrevieceRgnitrevninoN

--6A revirDgnitrevninoNdnatupnIrevieceRgnitrevninoN

tuptuO

4118V

ylppuSevitisoPV

ssapyB.V

Fu1.0ahtiwDNGot

.roticapac

31,8,1--CNtcennoCoN

DETAILED DESCRIPTION

The SP307XE family of high speed transceiv-

ers for RS-485/RS-422 communication con-

tain one driver and one receiver. These

devices feature fail-safe circuitry, which guar-

antees a logic-high receiver output when the

receiver inputs are open or shorted, or when

they are connected to a terminated transmis-

sion line with all drivers disabled. The

SP3070E, SP3072E, SP3073E, SP3075E,

SP3076E and SP3078E also feature a

hotswap capability allowing live insertion with-

out error data transfer. The SP3070E,

SP3071E and SP3072E feature reduced slew-

rate drivers that minimize EMI and reduce

reflections caused by improperly terminated

cables, allowing error-free data transmission

up to 250kbps. The SP3073E, SP3074E and

SP3075E also offer slew -rate limits allowing

transmit speeds up to 500kbps. The SP3076E,

SP3077E, SP3078E driver slew rates are not

limited, making transmit speeds up to 16Mbps

possible.

The SP3072E, SP3075E and SP3078E are

half-duplex transceivers, while the SP3070E,

SP3071E, SP3073E, SP3074E, SP3076E,

and SP3077E are full duplex transceivers.

All devices operate from a single 3.3V supply.

Drivers are output short-circuit current limited.

Thermal-shutdown circuitry protects drivers

against excessive power dissipation. When

activated, the thermal-shutdown circuitry

places the driver outputs into a high-imped-

ance state.

RECEIVER INPUT FILTERING

SP3070-SP3075 receivers incorporate input

filtering in addition to input hysteresis. This

filtering enhances noise immunity with differ-

ential signals that have very slow rise and fall

times. Receiver propagation delay increases

by 25% due to this filtering.

FAIL SAFE

The SP3070 family guarantees a logic-high

receiver output when the receiver inputs are

shorted, open, or when they are connected to

a terminated transmission line with all drivers

disabled. If A - B is less than or equal to -

200mV, RO is logic low. In the case of a

terminated bus with all transmitters disabled

the receiver's differential input voltage is pulled

to 0V by the termination. With the receiver

thresholds of the SP3070E family, this results

in a logic high with a 50mV minimum noise

margin. In compliance with the EIA/TIA-485

standard, the SP3070E family has a 50mV -

200mV threshold.

HOT-SWAP CAPABILITY

When circuit boards are inserted into a hot

backplane, differential disturbances to the

data bus can lead to data errors. Upon initial

circuit board insertion, the data communica-

tion processor undergoes its own power-up

sequence. During this period, the processor's

logic-output drivers are high impedance and

are unable to drive the DE and RE inputs of

these devices to a defined logic level. Leak-

age currents up to 10µA from the high-imped-

ance state of the processor's logic drivers

could cause standard CMOS enable inputs of

a transceiver to drift to an incorrect logic level.

Additionally, parasitic circuit board capaci-

tance could cause coupling of VCC or GND to

the enable inputs. Without the hot-swap capa-

bility, these factors could improperly enable

the transceiver's driver or receiver.

When VCC rises, an internal pulldown circuit

holds DE low and RE high for approximately

10 microseconds. After the initial power-up

sequence, the pulldown circuit becomes trans-

parent, resetting the hot-swap tolerable input.

15KV ESD PROTECTION

As with all Sipex devices, ESD-protection

structures are incorporated on all pins to

protect against electrostatic discharges en-

countered during handling and assembly. The

driver output and receiver inputs of the

SP3070E family of devices have extra protec-

tion against static electricity. Sipex's engi-

neering team have developed state of the art

structures to protect these pins against ESD

of 15kV without damage. The ESD structures

withstand high ESD in all states: normal op-

DETAILED

eration, shutdown, and powered down. After

an ESD event, the SP3070E - SP3078E keep

working without latchup or damage.

ESD protection can be tested in various ways.

The transmitter outputs and receiver inputs of

the SP3070E - SP3078E are characterized

for protection to the following limits:

■±15kV using the Human Body Model

■±8kV using the Contact Discharge

method specified in IEC 1000-4-2

■±15kV Airgap

ESD TEST CONDITIONS

ESD performance depends on a variety of

conditions. Contact Sipex for a reliability

report that documents test setup, method-

ology and results.

IEC 1000-4-2

The IEC 1000-4-2 standard covers ESD

testing and performance of finished

equipment. However, it does not specifi-

cally refer to integrated circuits. The

SP3070E family of devices helps you

design equipment to meet IEC 1000-4-2,

without the need for additional ESD-

protection components.

The major difference between tests done

using the Human Body Model and IEC

1000-4-2 is higher peak current in IEC

1000-4-2, because series resistance is

lower in the IEC 1000-4-2 model. Hence,

the ESD withstand voltage measured to

EC 1000-4-2 is generally lower than that

measured using the human body model.

The air-gap test involves approaching the

device with a charged probe. The contact-

discharge method connects the probe to

the device before the probe is energized.

MACHINE MODEL

The machine model for ESD tests all pins

using a 200pF storage capacitor and zero

discharge resistance. The objective is to

emulate the stress caused when I/O pins

are contacted by handling equipment

during test and assembly.

DETAILED

256 TRANSCEIVERS ON THE BUS

The standard RS-485 receiver input

impedance is 12kΩ (1 unit load), and the

standard driver can drive up to 32 unit

loads. The SP3070E family of transceivers

has a 1/8-unit load receiver input imped-

ance (96Ω), allowing up to 256 transceiv-

ers to be connected in parallel on one

communication line. Any combination of

these devices as well as other RS-485

transceivers with a total of 32 unit loads or

fewer can be connected to the line.

REDUCED EMI AND REFLECTIONS

The SP3070E, SP3071E and SP3072E

feature reduced slew-rate drivers that

minimize EMI and reduce reflections

caused by improperly terminated cables,

allowing error-free data transmission up to

250kbps. The SP3073, SP3074 and

SP3075 offer higher driver output slew-

rate limits, allowing transmit speeds up to

500kbps.

LOW POWER SHUTDOWN MODE

Low-power shutdown mode is initiated by

bringing both RE high and DE low. In

shutdown, the devices typically draw only

50nA of supply current.

RE and DE can be driven simultaneously;

the parts are guaranteed not to enter

shutdown if RE is high and DE is low for

less than 50ns. If the inputs are in this

state for at least 600ns, the parts are

guaranteed to enter shutdown.

Enable times tZH and tZL assume the part

was not in a low-power shutdown state.

Enable times tZH(SHDN) and tZL(SHDN)

assume the parts were shut down. It takes

drivers and receivers longer to become

enabled from low-power shutdown mode

tZH(SHDN) and tZL(SHDN) than from driver/

receiver-disable mode (tZH, tZL)

DRIVER OUTPUT PROTECTION

Two mechanisms prevent excessive

output current and power dissipation

caused by faults or by bus contention.

First, current limit on the ouput stage,

provides immediate protection against

short circuits over the whole common-

mode voltage range. Second, a thermal-

shutdown circuit, forces the driver outputs

into a high-impedance state if the die

temperature becomes excessive.

LINE LENGTH

The RS-485/RS422 standard covers line

lengths up to 4000ft.

TYPICAL APPLICATIONS

The SP3072E, SP3075E and SP3078E

transceivers are designed for bidirectional

data communications on multipoint bus

transmission lines.

To minimize reflections, terminate the line

at both ends in its characteristic imped-

ance, and keep stub lengths off the main

line as short as possible. The slew-rate-

limited SP3072E and SP3075 are more

tolerant of imperfect termination.

DETAILED DESCRIPTION

PARTS SELECTOR GUIDE

PINOUT DRAWINGS

8 PIN NSOIC

8 PIN PDIP

GND

14 Pin PDIP

14 Pin NSOIC

VCC

GND

SP3072E, SP3075E, AND SP3078E

SP3071E, SP3074E, AND SP3077E

SP3070E, SP3073E, AND SP3076E

8 PIN NSOIC

8 PIN PDIP

GND

TRAP REBMUN LLUF/FLAH XELPUD

ATAD ETAR spbM

-TUHS NWOD

REVIECER REVIRD ELBANE

.SNART SUBNO NIP TNUOC YRTSUDNI TUONIPDRADNATS

E0703PSlluF52.0seYseY6524108157,E0703XAM

E1703PSlluF52.0oNoN6528 97157,E1703XAM

E2703PSflaH52.0seYseY6528 67157,E2703XAM

E3703PSlluF5.0seYseY6524108157,E3703XAM

E4703PSlluF5.0oNoN6528 97157,E4703XAM

E5703PSflaH5.0seYseY6528 67157,E5703XAM

E6703PSlluF61seYseY6524108157,E6703XAM

E7703PSlluF61oNoN6528 97157,E7703XAM

E8703PSflaH61seYseY6528 67157,E8703XAM

PACKAGE: 8 PIN PDIP

INDEX

AREA

123

N/2

SYMBOL MIN NOM MAX

A--0.21

A1 0.15 - -

A2 0.115 0.13 0.195

b 0.014 0.018 0.022

b2 0.045 0.06 0.07

b3 0.3 0.039 0.045

c 0.008 0.01 0.014

D 0.355 0.365 0.4

D1 0.005 - -

E 0.3 0.31 0.325

E1 0.24 0.25 0.28

eB - - 0.43

L 0.115 0.13 0.15

Note: Dimensions in (mm)

.100 BSC

.300 BSC

8 PIN PDIP JEDEC MS-001 (BA) Variation

PACKAGE: 14 PIN PDIP

INDEX

AREA

123N/2

SYMBOL MIN NOM MAX

A--0.21

A1 0.15 - -

A2 0.115 0.13 0.195

b 0.014 0.018 0.022

b2 0.045 0.06 0.07

b3 0.3 0.039 0.045

c 0.008 0.01 0.014

D 0.735 0.75 0.755

D1 0.005 - -

E 0.3 0.31 0.325

E1 0.24 0.25 0.28

eB - - 0.43

L 0.115 0.13 0.15

Note: Dimensions in (mm)

.100 BSC

.300 BSC

14 PIN PDIP JEDEC MS-001 (AA) Variation

PACKAGE: 8 PIN NSOIC

AA1

SIDE VIEW

Seating Plane

SECTION B-B

WITH PLATING

SYMBOL MIN NOM MAX

A 1.35 - 1.75

A1 0.1 - 0.25

A2 1.25 - 1.65

b 0.31 - 0.51

c 0.17 - 0.24

L 0.4 - 1.27

ø0º-8º

ø1 5º - 15º

Note: Dimensions in (mm)

8 Pin NSOIC JEDEC MO-012 (AA) Variation

4.90 BSC

6.00 BSC

3.90 BSC

1.27 BSC

1.04 REF

0.25 BSC

Gauge Plane

Ø1

Seating Plane

VIEW C

TOP VIEW

SEE VIEW C

E/2

INDEX AREA

(D/2 X E1/2)

E1/2

BASE METAL

PACKAGE: 14 PIN NSOIC

TOP VIEW

Gauge Plane

Ø1

Seating Plane

VIEW C

SEE VIEW C

SECTION B-B

WITH PLATING

BASE METAL

AA1

SYMBOL MIN NOM MAX

A1.35 - 1.75

A1 0.1 - 0.25

A2 1.25 - 1.65

b0.31 - 0.51

c0.17 - 0.25

L0.4 - 1.27

ø0º-8º

ø1 5º - 15º

Note: Dimensions in (mm)

1.27 BSC

1.04 REF

0.25 BSC

14 Pin NSOIC JEDEC MO-012 (AB) Variation

8.65 BSC

6.00 BSC

3.90 BSC

E/2

INDEX AREA

(D/2 X E1/2)

E1/2

SIDE VIEW

Seating Plane

Corporation

ANALOG EXCELLENCE

Sipex Corporation

Headquarters and

Sales Office

233 South Hillview Drive

Milpitas, CA 95035

TEL: (408) 934-7500

FAX: (408) 935-7600

Model Temperature Range Package

SP3070ECN ..................................................... 0ûC to +70ûC....................................................... 14-pin NSOIC

SP3070ECN/TR ................................................ 0ûC to +70ûC....................................................... 14-pin NSOIC

SP3070ECP ...................................................... 0ûC to +70ûC.......................................................... 14-pin PDIP

SP3070EEN .................................................... -40ûC to +85ûC..................................................... 14-pin NSOIC

SP3070EEN/TR .............................................. -40ûC to +85ûC..................................................... 14-pin NSOIC

SP3070EEP .................................................... -40ûC to +85ûC........................................................ 14-pin PDIP

SP3071ECN ..................................................... 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3071ECN/TR ................................................ 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3071ECP ...................................................... 0ûC to +70ûC............................................................ 8-pin PDIP

SP3071EEN .................................................... -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3071EEN/TR .............................................. -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3071EEP .................................................... -40ûC to +85ûC.......................................................... 8-pin PDIP

SP3072ECN ..................................................... 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3072ECN/TR ................................................ 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3072ECP ...................................................... 0ûC to +70ûC............................................................ 8-pin PDIP

SP3072EEN .................................................... -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3072EEN/TR .............................................. -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3072EEP .................................................... -40ûC to +85ûC.......................................................... 8-pin PDIP

SP3073ECN .................................................... -0ûC to +70ûC...................................................... 14-pin NSIOC

SP3073ECN/TR ............................................... -0ûC to +70ûC...................................................... 14-pin NSIOC

SP3073ECP ...................................................... 0ûC to +70ûC.......................................................... 14-pin PDIP

SP3073EEN .................................................... -40ûC to +85ûC..................................................... 14-pin NSIOC

SP3073EEN/TR .............................................. -40ûC to +85ûC..................................................... 14-pin NSIOC

SP3073EEP .................................................... -40ûC to +85ûC........................................................ 14-pin PDIP

SP3074ECN ..................................................... 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3074ECN/TR ................................................ 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3074ECP ...................................................... 0ûC to +70ûC............................................................ 8-pin PDIP

SP3074EEN .................................................... -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3074EEN/TR .............................................. -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3074EEP .................................................... -40ûC to +85ûC.......................................................... 8-pin PDIP

ORDERING INFORMATION

Available in lead free packaging. To order add “-L” suffix to part number.

Example: SP3074EEN/TR = standard; SP3074EEN-L/TR = lead free

/TR = Tape and Reel

Pack quantity is 2,500 for NSOIC.

CLICK HERE TO ORDER SAMPLES

ORDERING INFORMATION

Model Temperature Range Package

SP3075ECN ..................................................... 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3075ECN/TR ................................................ 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3075ECP ...................................................... 0ûC to +70ûC............................................................ 8-pin PDIP

SP3075EEN .................................................... -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3075EEN/TR .............................................. -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3075EEP .................................................... -40ûC to +85ûC.......................................................... 8-pin PDIP

SP3076ECN ..................................................... 0ûC to +70ûC....................................................... 14-pin NSOIC

SP3076ECN/TR ................................................ 0ûC to +70ûC....................................................... 14-pin NSOIC

SP3076ECP ...................................................... 0ûC to +70ûC.......................................................... 14-pin PDIP

SP3076EEN .................................................... -40ûC to +85ûC..................................................... 14-pin NSOIC

SP3076EEN/TR .............................................. -40ûC to +85ûC..................................................... 14-pin NSOIC

SP3076EEP .................................................... -40ûC to +85ûC........................................................ 14-pin PDIP

SP3077ECN ..................................................... 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3077ECN/TR ................................................ 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3077ECP ...................................................... 0ûC to +70ûC............................................................ 8-pin PDIP

SP3077EEN .................................................... -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3077EEN/TR .............................................. -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3077EEP .................................................... -40ûC to +85ûC.......................................................... 8-pin PDIP

SP3078ECN ..................................................... 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3078ECN/TR ................................................ 0ûC to +70ûC......................................................... 8-pin NSOIC

SP3078ECP ...................................................... 0ûC to +70ûC............................................................ 8-pin PDIP

SP3078EEN .................................................... -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3078EEN/TR .............................................. -40ûC to +85ûC....................................................... 8-pin NSOIC

SP3078EEP .................................................... -40ûC to +85ûC.......................................................... 8-pin PDIP

Corporation

ANALOG EXCELLENCE

Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the

application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.

Available in lead free packaging. To order add “-L” suffix to part number.

Example: SP3078EEN/TR = standard; SP3078EEN-L/TR = lead free

/TR = Tape and Reel

Pack quantity is 2,500 for NSOIC.

Sipex Corporation

Headquarters and

Sales Office

233 South Hillview Drive

Milpitas, CA 95035

TEL: (408) 934-7500

FAX: (408) 935-7600

CLICK HERE TO ORDER SAMPLES