D-14(SOIC)

RHL (QFN)

D-8(SOIC)

1

FEATURES

APPLICATIONS

DESCRIPTION

IMPROVED REPLACEMENT FOR:

SN65HVD30 – SN65HVD39

SLLS665E – SEPTEMBER 2005 – REVISED MARCH 2008

www.ti.com

3.3 V 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

designs.

They

are

designed

for

balanced

256 Nodes on the Bus)

transmission lines and inter-operation 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,

26 Mbps

SN65HVD36 and SN65HVD37 are fully enabled with

no external enabling pins.

• Low-Current Standby Mode: < 1 µA

• Glitch-Free Power-Up and Power-Down

The

SN65HVD33,

SN65HVD34,

SN65HVD35,

Protection for Hot-Plugging Applications

SN65HVD38, and SN65HVD39 have active-high

driver enables and active-low receiver enables. A low,

• 5-V Tolerant Inputs

less than 1

µA, standby current can be achieved by

• Bus Idle, Open, and Short Circuit Failsafe

disabling both the driver and receiver.

• Driver Current Limiting and Thermal Shutdown

All

devices

are

characterized

for

ambient

• Meets or Exceeds the Requirements of ANSI

temperatures from –40

°C to 85°C. Low power

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

dissipation allows operation at temperatures up to

• 5-V Devices available, SN65HVD50-59

105

°C or 125°C, depending on package option.

(1)

Line Signaling Rate is the number of voltage transitions made

The preview devices SN65HVD36 and SN65HVD38

per second expressed in units of bps (bits per second).

implement

receiver

equalization

technology

for

improved

jitter

performance

on

differential

bus

applications with data rates up to 20 Mbps at cable

lengths up to 160 meters.

• Utility Meters

• DTE/DCE Interfaces

The preview devices SN65HVD37 and SN65HVD39

• Industrial, Process, and Building Automation

implement

receiver

equalization

technology

for

improved

jitter

performance

on

differential

bus

• Point-of-Sale (POS) Terminals and Networks

applications with data rates in the range of 1 to 5

Mbps at cable lengths up to 1000 meters.

The SN65HVD3X devices are 3-state differential line

drivers

and

differential-input

line

receivers

that

operate with 3.3-V power supply.

Part Number

Replace with

xxx3491

SN65HVD33:

Better ESD protection (15kV vs 2kV or not specified) Higher Signaling Rate (26Mbps vs 20Mbps)

xxx3490

SN65HVD30:

Fractional Unit Load (64 Nodes vs 32)

MAX3491E

SN65HVD33:

Higher Signaling Rate (26Mbps vs 12Mbps) Fractional Unit Load (64 Nodes vs 32)

MAX3490E

SN65HVD30:

MAX3076E

SN65HVD33:

Higher Signaling Rate (26Mbps vs 16Mbps) Lower Standby Current (1

µA vs 10 µA)

MAX3077E

SN65HVD30:

MAX3073E

SN65HVD34:

Higher Signaling Rate (5Mbps vs 500kbps) Lower Standby Current (1

µA vs 10 µA)

MAX3074E

SN65HVD31:

MAX3070E

SN65HVD35:

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

µA vs 10 µA)

MAX3071E

SN65HVD32:

1

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 © 2005–2008, 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.