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DESCRIPTION

SN65HVD30-SN65HVD35

SN65HVD36-SN65HVD39

SLLS665 – SEPTEMBER 2005

3.3V FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS

Each driver and receiver has separate input and

output

pins

for

full-duplex

bus

communication

•

1/8 Unit-Load Option Available (Up to 256

designs.

They

are

designed

for

balanced

Nodes on the Bus)

transmission lines and interoperation with ANSI

•

Bus-Pin ESD Protection Exceeds 15 kV HBM

TIA/EIA-485A, TIA/EIA-422-B, ITU-T v.11 and ISO

8482:1993 standard-compliant devices.

•

Optional Driver Output Transition Times for

The

SN65HVD30,

SN65HVD31,

SN65HVD32,

Mbps

SN65HVD36 and SN65HVD37 are fully enabled with

no external enabling pins. The SN65HVD36 and

•

Low-Current Standby Mode: < 1

µA

SN65HVD37

implement

receiver

equalization

•

Glitch-Free Power-Up and Power-Down

technology for improved performance in long distance

Protection for Hot-Plugging Applications

applications.

•

5V Tolerant Inputs

The

SN65HVD33,

SN65HVD34,

SN65HVD35,

•

Bus Idle, Open, and Short Circuit Failsafe

SN65HVD38, and SN65HVD39 have active-high

•

Meets or exceeds the requirements of ANSI

driver enables and active-low receiver enables. A

TIA/EIA-485-A and RS-422 Compatible

very low, less than 1

µA, standby current can be

achieved by disabling both the driver and receiver.

•

5-V Devices available, SN65HVD50-59

The

SN65HVD38

and

SN65HVD39

implement

receiver

equalization

technology

for

improved

performance in long distance applications.

•

Utility Meters

All devices are characterized for operation from -40

°C

•

DTE/DCE Interfaces

to +85

°C.

•

Industrial, Process, and Building Automation

The

SN65HVD36

and

SN65HVD38

implement

•

Point-of-Sale (POS) Terminals and Networks

receiver equalization technology for improved jitter

performance on differential bus applications with data

rates up to 20 Mbps at cable lengths up to 160

The SN65HVD3X devices are 3-state differential line

meters.

drivers

and

differential-input

line

receivers

that

The

SN65HVD37

and

SN65HVD39

implement

operate with 3.3-V power supply.

receiver equalization technology for improved jitter

performance on differential bus applications with data

(1)

The signaling rate of a line is the number of voltage

rates in the range of 1 to 5 Mbps at cable lengths up

transitions that are made per second expressed in the units

bps (bits per second).

to 1000 meters.

IMPROVED REPLACEMENT FOR:

Part Number

Replace with

xxx3491

SN65HVD33:

Better ESD protection (15kV vs 2kV or not specified) Higher Signaling

Rate (25Mbps vs 20Mbps) Fractional Unit Load (64 Nodes vs 32)

MAX3491E

SN65HVD33:

Higher Signaling Rate (25Mbps vs 12Mbps) Fractional Unit Load

(64 Nodes vs 32)

MAX3076E

SN65HVD33:

Higher Signaling Rate (25Mbps vs 16Mbps) Lower Standby Current

(1

µA vs 10 µA)

MAX3073E

SN65HVD34:

Higher Signaling Rate (5Mbps vs 500kbps) Lower Standby Current

(1

µA vs 10 µA)

MAX3070E

SN65HVD35:

Higher Signaling Rate (1Mbps vs 250kbps) Lower Standby Current

(1

µA vs 10 µA)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright © 2005, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.