Maxim MAX3089EPD, MAX3089CSD, MAX3089CPD, MAX3088ESA, MAX3088EPA Datasheet

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Maxim MAX3089EPD, MAX3089CSD, MAX3089CPD, MAX3088ESA, MAX3088EPA Datasheet

19-1138; Rev 1; 12/97

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

General Description

The MAX3080–MAX3089 high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3080/MAX3081/MAX3082 feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 115kbps. The MAX3083/MAX3084/MAX3085 offer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086/MAX3087/MAX3088’s driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089’s slew rate is selectable between 115kbps, 500kbps, and 10Mbps by driving a selector pin with a single three-state driver.

These transceivers typically draw 375µA of supply current when unloaded, or when fully loaded with the drivers disabled.

All devices have a 1/8-unit-load receiver input impedance that allows up to 256 transceivers on the bus. The MAX3082/MAX3085/MAX3088 are intended for halfduplex communications, while the MAX3080/MAX3081/ MAX3083/MAX3084/MAX3086/MAX3087 are intended for full-duplex communications. The MAX3089 is selectable between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins.

Features

True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility

Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX3080–MAX3085/MAX3089)

1nA Low-Current Shutdown Mode (except MAX3081/MAX3084/MAX3087)

Pin-Selectable Full/Half-Duplex Operation (MAX3089)

Phase Controls to Correct for Twisted-Pair Reversal (MAX3089)

Allow Up to 256 Transceivers on the Bus

Applications

RS-422/RS-485 Communications

Level Translators

Transceivers for EMI-Sensitive Applications

Industrial-Control Local Area Networks

Ordering Information

PART

TEMP. RANGE

PIN-PACKAGE

MAX3080CPD

0°C to +70°C

14 Plastic DIP

 

 

 

MAX3080CSD

0°C to +70°C

14 SO

 

 

 

MAX3080EPD

-40°C to +85°C

14 Plastic DIP

MAX3080ESD

-40°C to +85°C

14 SO

 

 

 

Ordering Information continued on last page.

Selection Table

 

Half/Full

Data

Slew

Low-

Receiver/

Quiescent

Transceivers

Pin

Industry-

Part

Rate

Rate

Power

Driver

Current

On

Standard

Duplex

Count

 

(Mbps)

Limited

Shutdown

Enable

(µA)

Bus

Pinout

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX3080

Full

0.115

Yes

Yes

Yes

375

256

14

75180

 

 

 

 

 

 

 

 

 

 

MAX3081

Full

0.115

Yes

No

No

375

256

8

75179

 

 

 

 

 

 

 

 

 

 

MAX3082

Half

0.115

Yes

Yes

Yes

375

256

8

75176

 

 

 

 

 

 

 

 

 

 

MAX3083

Full

0.5

Yes

Yes

Yes

375

256

14

75180

 

 

 

 

 

 

 

 

 

 

MAX3084

Full

0.5

Yes

No

No

375

256

8

75179

 

 

 

 

 

 

 

 

 

 

MAX3085

Half

0.5

Yes

Yes

Yes

375

256

8

75176

 

 

 

 

 

 

 

 

 

 

MAX3086

Full

10

No

Yes

Yes

375

256

14

75180

 

 

 

 

 

 

 

 

 

 

MAX3087

Full

10

No

No

No

375

256

8

75179

 

 

 

 

 

 

 

 

 

 

MAX3088

Half

10

No

Yes

Yes

375

256

8

75176

 

 

 

 

 

 

 

 

 

 

MAX3089

Selectable

Selectable

Selectable

Yes

Yes

375

256

14

75180*

 

 

 

 

 

 

 

 

 

 

*Pin-compatible with 75180, with additional features implemented using pins 1, 6, 8, and 13.

________________________________________________________________ Maxim Integrated Products 1

MAX3089–MAX3080

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.

MAX3080–MAX3089

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC) ............................................................

+7V

Control Input Voltage (RE, DE)...................

-0.3V to (VCC + 0.3V)

Special Input Voltage

 

(H/F, SRL, TXP, RXP)..................................

-0.3V to (VCC + 0.3V)

Driver Input Voltage (DI).............................

-0.3V to (VCC + 0.3V)

Driver Output Voltage (A, B, Y, Z)........................................

±13V

Receiver Input Voltage (A, B) ..............................................

±13V

Receiver Input Voltage, Full Duplex (A, B) ..........................

±25V

Receiver Output Voltage (RO)....................

-0.3V to (VCC + 0.3V)

Continuous Power Dissipation

 

 

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)

...727mW

8-Pin SO (derate 5.88mW/°C above +70°C)

................

471mW

14-Pin Plastic DIP (derate 10.0mW/°C above ....+70°C)

800mW

14-Pin SO (derate 8.33mW/°C above +70°C)..............

667mW

Operating Temperature Ranges

 

 

MAX308_C_ _ .....................................................

0°C to +70°C

MAX308_E_ _...................................................

- 40°C to +85°C

Storage Temperature Range .............................

- 65°C to +150°C

Lead Temperature (soldering, 10sec) .............................

 

+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

DC ELECTRICAL CHARACTERISTICS

(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

PARAMETER

 

SYMBOL

 

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRIVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Differential Driver Output

 

VOD1

 

Figure 5

 

 

 

 

5

V

 

(no load)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Differential Driver Output

VOD2

Figure 5, R = 50Ω (RS-422)

2.0

 

 

V

 

 

 

 

 

 

 

 

Figure 5, R = 27Ω (RS-485)

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Change in Magnitude of

 

 

Figure 5, R = 50Ω or R = 27Ω

 

 

 

 

 

Differential Output Voltage

VOD

 

 

0.2

V

(Note 2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Driver Common-Mode Output

VOC

Figure 5, R = 50Ω or R = 27Ω

 

 

3

V

Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Change In Magnitude of

VOC

Figure 5, R = 50Ω or R = 27Ω

 

 

0.2

V

Common-Mode Voltage (Note 2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input High Voltage

VIH1

DE, DI, RE, H/F, TXP, RXP

2.0

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Low Voltage

VIL1

DE, DI, RE, H/F, TXP, RXP

 

 

0.8

V

DI Input Hysteresis

VHYS

MAX3080–MAX3085, and MAX3089 with

 

100

 

mV

SRL = VCC or unconnected

 

 

 

 

 

 

 

 

 

 

 

SRL Input Current

IIN1

DE, DI, RE

 

 

 

 

±2

µA

 

 

 

 

 

 

 

 

 

 

IIN2

H/F, TXP, RXP, internal pull-down

10

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input High Voltage

VIH2

SRL

 

 

 

 

VCC - 0.8

 

 

V

Input Middle Voltage

VIM2

SRL (Note 3)

 

 

0.4VCC

 

0.6VCC

V

Input Low Voltage

VIL2

SRL

 

 

 

 

 

 

0.8

V

 

 

 

 

 

 

 

 

 

 

 

 

 

SRL Input Current

IIN3

SRL = VCC

 

 

 

 

75

µA

SRL = GND (Note 3)

 

 

-75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Current (A and B)

IIN4

DE = GND,

VIN = 12V

 

 

125

µA

Full Duplex

VCC = GND or 5.25V

VIN = -7V

 

 

-75

 

 

 

 

 

 

Output Leakage (Y and Z)

IO

DE = GND,

 

VIN = 12V

 

 

125

µA

Full Duplex

VCC = GND or 5.25V

VIN = -7V

-100

 

 

 

 

 

 

 

 

Driver Short-Circuit Output

 

 

 

-7V ≤

VOUT ≤ VCC

 

 

-250

 

 

 

 

 

VOD1

 

0V ≤

VOUT ≤ 12V

 

 

 

 

250

mA

 

Current (Note 4)

 

 

 

 

 

 

 

 

 

 

0V ≤ VOUT ≤ VCC

 

 

±25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 _______________________________________________________________________________________

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

RECEIVER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Differential Threshold

VTH

-7V ≤ VCM ≤ 12V

 

-200

-125

-50

mV

Voltage

 

 

 

 

 

 

 

 

 

 

Receiver Input Hysteresis

VTH

 

 

 

 

25

 

mV

 

Receiver Output High Voltage

VOH

IO = -4mA, VID = -50mV

 

VCC -1.5

 

 

V

 

 

 

 

 

 

 

 

 

 

 

Receiver Output Low Voltage

VOL

IO = 4mA, VID = -200mV

 

 

 

0.4

V

Three-State Output Current at

IOZR

0.4V ≤ VO ≤ 2.4V

 

 

 

±1

µA

 

Receiver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Input Resistance

RIN

-7V ≤ VCM ≤ 12V

 

96

 

 

 

Receiver Output Short-Circuit

IOSR

0V ≤ VRO ≤ VCC

 

±7

 

±95

mA

Current

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLY CURRENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No load,

 

DE = VCC

 

430

900

µA

 

 

RE = DI = GND

 

 

 

 

 

 

 

 

DE = GND

 

375

600

Supply Current

ICC

or VCC, SRL = VCC

 

 

 

 

No load,

 

DE = VCC

 

475

1000

µA

 

 

 

 

 

 

 

 

RE = DI = GND

 

 

 

 

 

 

 

 

 

DE = GND

 

420

800

 

 

or VCC, SRL = GND

 

 

 

 

Supply Current in Shutdown

ISHDN

DE = GND, VRE = VCC

 

 

0.001

10

µA

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device ground unless otherwise noted.

Note 2: VOD and VOC are the changes in VOD and VOC, respectively, when the DI input changes state.

Note 3: The SRL pin is internally biased to VCC / 2 by a 100kΩ /100kΩ resistor divider. It is guaranteed to be VCC / 2 if left unconnected.

Note 4: Maximum current level applies to peak current just prior to foldback-current limiting; minimum current level applies during current limiting.

MAX3089–MAX3080

_______________________________________________________________________________________ 3

MAX3080–MAX3089

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

SWITCHING CHARACTERISTICS—MAX3080–MAX3082, and MAX3089 with SRL = Unconnected

(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

 

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

 

Driver Input to Output

tDPLH

Figures 7 and 9, RDIFF = 54Ω ,

 

 

500

2030

2600

ns

 

tDPHL

CL1 = CL2 = 100pF

 

500

2030

2600

 

 

 

 

 

Driver Output Skew

tDSKEW

Figures 7 and 9, RDIFF = 54Ω ,

 

 

-3

±200

ns

 

| tDPLH - tDPHL |

CL1 = CL2 = 100pF

 

 

 

 

 

 

 

 

 

 

 

 

Figures 7 and 9, RDIFF = 54Ω ,

 

 

 

 

 

Driver Rise or Fall Time

tDR, tDF

667

1320

2500

ns

CL1 = CL2 = 100pF

 

 

 

 

 

 

 

Maximum Data Rate

fMAX

 

 

 

115

 

 

kbps

 

 

 

 

 

 

 

 

 

 

 

Driver Enable to Output High

tDZH

Figures 8 and 10, CL = 100pF, S2 closed

 

 

 

3500

ns

 

Driver Enable to Output Low

tDZL

Figures 8 and 10, CL = 100pF, S1 closed

 

 

 

3500

ns

 

Driver Disable Time from Low

tDLZ

Figures 8 and 10, CL = 15pF, S1 closed

 

 

 

100

ns

 

Driver Disable Time from High

tDHZ

Figures 8 and 10, CL = 15pF, S2 closed

 

 

 

100

ns

 

Receiver Input to Output

tRPLH,

Figures 11 and 13; | VID | ≥ 2.0V;

 

 

127

200

ns

 

tRPHL

rise and fall time of VID ≤ 15ns

 

 

 

 

 

 

 

 

 

 

| tRPLH - tRPHL | Differential

tRSKD

Figures 11 and 13; | VID | ≥ 2.0V;

 

 

3

±30

ns

 

Receiver Skew

rise and fall time of VID ≤ 15ns

 

 

 

 

 

 

 

 

 

 

Receiver Enable to Output Low

tRZL

Figures 6 and 12, CL = 100pF, S1 closed

 

20

50

ns

 

Receiver Enable to Output High

tRZH

Figures 6 and 12, CL = 100pF, S2 closed

 

 

20

50

ns

 

Receiver Disable Time from Low

tRLZ

Figures 6 and 12, CL = 100pF, S1 closed

 

 

20

50

ns

 

Receiver Disable Time from

tRHZ

Figures 6 and 12, CL = 100pF, S2 closed

 

 

20

50

ns

 

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time to Shutdown

tSHDN

(Note 5)

 

50

200

600

ns

 

 

 

 

 

 

 

 

 

 

 

Driver Enable from Shutdown to

tDZH(SHDN)

Figures 8 and 10, CL = 15pF, S2 closed

 

 

 

6000

ns

 

Output High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Driver Enable from Shutdown to

tDZL(SHDN)

Figures 8 and 10, CL = 15pF, S1 closed

 

 

 

6000

ns

 

Output Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Enable from Shutdown

tRZH(SHDN)

Figures 6 and 12, CL = 100pF, S2 closed

 

 

 

3500

ns

 

to Output High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Enable from Shutdown

tRZL(SHDN)

Figures 6 and 12, CL = 100pF, S1 closed

 

 

3500

ns

to Output Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 _______________________________________________________________________________________

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

SWITCHING CHARACTERISTICS—MAX3083–MAX3085, and MAX3089 with SRL = VCC

(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

Driver Input to Output

tDPLH

Figures 7 and 9, RDIFF = 54Ω ,

250

720

1000

ns

 

tDPHL

CL1 = CL2 = 100pF

250

720

1000

 

 

 

 

 

Driver Output Skew

tDSKEW

Figures 7 and 9, RDIFF = 54Ω ,

 

-3

±100

ns

 

| tDPLH - tDPHL |

CL1 = CL2 = 100pF

 

 

 

 

 

 

 

 

Driver Rise or Fall Time

tDR, tDF

Figures 7 and 9, RDIFF = 54Ω ,

200

530

750

ns

CL1 = CL2 = 100pF

 

 

 

 

 

 

 

Maximum Data Rate

fMAX

 

500

 

 

kbps

 

 

 

 

 

 

 

 

 

Driver Enable to Output High

tDZH

Figures 8 and 10, CL = 100pF, S2 closed

 

 

2500

ns

 

Driver Enable to Output Low

tDZL

Figures 8 and 10, CL = 100pF, S1 closed

 

 

2500

ns

 

Driver Disable Time from Low

tDLZ

Figures 8 and 10, CL = 15pF, S1 closed

 

 

100

ns

 

Driver Disable Time from High

tDHZ

Figures 8 and 10, CL = 15pF, S2 closed

 

 

100

ns

 

Receiver Input to Output

tRPLH,

Figures 11 and 13; | VID | ≥ 2.0V;

 

127

200

ns

 

tRPHL

rise and fall time of VID ≤ 15ns

 

 

 

 

 

 

 

 

| tRPLH - tRPHL | Differential

tRSKD

Figures 11 and 13; | VID | ≥ 2.0V;

 

3

±30

ns

 

Receiver Skew

rise and fall time of VID ≤ 15ns

 

 

 

 

 

 

 

 

Receiver Enable to Output Low

tRZL

Figures 6 and 12, CL = 100pF, S1 closed

 

20

50

ns

 

Receiver Enable to Output High

tRZH

Figures 6 and 12, CL = 100pF, S2 closed

 

20

50

ns

 

Receiver Disable Time from Low

tRLZ

Figures 6 and 12, CL = 100pF, S1 closed

 

20

50

ns

 

Receiver Disable Time from

tRHZ

Figures 6 and 12, CL = 100pF, S2 closed

 

20

50

ns

 

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time to Shutdown

tSHDN

(Note 5)

50

200

600

ns

 

 

 

 

 

 

 

 

 

Driver Enable from Shutdown to

tDZH(SHDN)

Figures 8 and 10, CL = 15pF, S2 closed

 

 

4500

ns

 

Output High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Driver Enable from Shutdown to

tDZL(SHDN)

Figures 8 and 10, CL = 15pF, S1 closed

 

 

4500

ns

 

Output Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Enable from Shutdown

tRZH(SHDN)

Figures 6 and 12, CL = 100pF, S2 closed

 

 

3500

ns

to Output High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Enable from Shutdown

tRZL(SHDN)

Figures 6 and 12, CL = 100pF, S1 closed

 

 

3500

ns

 

to Output Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX3089–MAX3080

_______________________________________________________________________________________ 5

MAX3080–MAX3089

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

SWITCHING CHARACTERISTICS—MAX3086–MAX3088, and MAX3089 with SRL = GND

(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

Driver Input to Output

tDPLH

Figures 7 and 9, RDIFF = 54Ω ,

 

34

60

ns

 

tDPHL

CL1 = CL2 = 100pF

 

34

60

 

 

 

 

 

Driver Output Skew

tDSKEW

Figures 7 and 9, RDIFF = 54Ω ,

 

-2.5

±10

ns

 

| tDPLH - tDPHL |

CL1 = CL2 = 100pF

 

 

 

 

 

 

 

 

Driver Rise or Fall Time

tDR, tDF

Figures 7 and 9, RDIFF = 54Ω ,

 

14

25

ns

CL1 = CL2 = 100pF

 

 

 

 

 

 

 

 

Maximum Data Rate

fMAX

 

10

 

 

Mbps

 

 

 

 

 

 

 

 

 

Driver Enable to Output High

tDZH

Figures 8 and 10, CL = 100pF, S2 closed

 

 

150

ns

 

Driver Enable to Output Low

tDZL

Figures 8 and 10, CL = 100pF, S1 closed

 

 

150

ns

 

Driver Disable Time from Low

tDLZ

Figures 8 and 10, CL = 15pF, S1 closed

 

 

100

ns

 

Driver Disable Time from High

tDHZ

Figures 8 and 10, CL = 15pF, S2 closed

 

 

100

ns

 

Receiver Input to Output

tRPLH,

Figures 11 and 13; | VID | ≥ 2.0V;

 

106

150

ns

 

tRPHL

rise and fall time of VID ≤ 15ns

 

 

 

 

 

 

 

 

| tRPLH - tRPHL | Differential

tRSKD

Figures 11 and 13; | VID | ≥ 2.0V;

 

0

±10

ns

 

Receiver Skew

rise and fall time of VID ≤ 15ns

 

 

 

 

 

 

 

 

Receiver Enable to Output Low

tRZL

Figures 6 and 12, CL = 100pF, S1 closed

 

20

50

ns

 

Receiver Enable to Output High

tRZH

Figures 6 and 12, CL = 100pF, S2 closed

 

20

50

ns

 

Receiver Disable Time from Low

tRLZ

Figures 6 and 12, CL = 100pF, S1 closed

 

20

50

ns

 

Receiver Disable Time from

tRHZ

Figures 6 and 12, CL = 100pF, S2 closed

 

20

50

ns

 

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time to Shutdown

tSHDN

(Note 5)

50

200

600

ns

 

 

 

 

 

 

 

 

 

Driver Enable from Shutdown to

tDZH(SHDN)

Figures 8 and 10, CL = 15pF, S2 closed

 

 

250

ns

 

Output High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Driver Enable from Shutdown to

tDZL(SHDN)

Figures 8 and 10, CL = 15pF, S1 closed

 

 

250

ns

 

Output Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Enable from Shutdown

tRZH(SHDN)

Figures 6 and 12, CL = 100pF, S2 closed

 

 

3500

ns

 

to Output High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Enable from Shutdown

tRZL(SHDN)

Figures 6 and 12, CL = 100pF, S1 closed

 

 

3500

ns

to Output Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 5: The device is put into shutdown by bringing RE high and DE low. If the enable inputs are in this state for less than 50ns, the device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 600ns, the device is guaranteed to have entered shutdown.

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