R

D

R

D

DE

RE

Y

Z

B

A

GND

R

D

R

D

Y

Z

B

A

GND

SN65HVD1470,

SN65HVD1473, and

SN65HVD1476

SN65HVD1471,

SN65HVD1474, and

SN65HVD1477

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SN65HVD1470, SN65HVD1471, SN65HVD1473

SN65HVD1474, SN65HVD1476, SN65HVD1477

SLLSEJ8D – JUNE 2014 – REVISED OCTOBER 2014

SN65HVD147x 3.3-V Full-Duplex RS-485 Transceivers With ±16-kV IEC ESD

These devices each combine a differential driver and

1 Features

a differential receiver, which operate from a single

1

•

1/8 Unit-Load Options Available

3.3-V power supply. Each driver and receiver has

–

Up to 256 Nodes on the Bus

separate input and output pins for full-duplex bus

communication designs. These devices all feature a

•

Bus I/O Protection

wide common-mode voltage range which makes the

–

> ±30 kV HBM protection

devices suitable for multi-point applications over long

–

> ±16 kV IEC61000-4-2 Contact Discharge

cable runs.

–

> ±4 kV IEC61000-4-4 Fast Transient Burst

The

SN65HVD1471,

SN65HVD1474,

and

•

Extended Industrial Temperature Range:

SN65HVD1477 devices are fully enabled with no

external enabling pins.

–40°C to 125°C

•

Large Receiver Hysteresis (70 mV) for Noise

The

SN65HVD1470,

SN65HVD1473,

and

Rejection

SN65HVD1476

devices

have

active-high

driver

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

•

Low Power Consumption

than 5-µA standby current can be achieved by

–

< 1.1 mA Quiescent Current During Operation

disabling both the driver and receiver.

–

Low Standby Supply Current: 10 nA Typical,

These devices are characterized from –40°C to

< 5 µA (maximum)

125°C.

•

Glitch-Free Power-Up and Power-Down Protection

for Hot-Plugging Applications

Device Information(1)

•

5-V Tolerant Logic Inputs Compatible With 3.3-V

PART NUMBER

PACKAGE

BODY SIZE (NOM)

or 5-V Controllers

SN65HVD1471

MSOP (8)

3.00 mm × 3.00 mm

SN65HVD1474

•

Signaling Rate Options Optimized for:

SOIC (8)

4.90 mm × 3.91 mm

SN65HVD1477

400 kbps (1470, 1471), 20 Mbps (1473, 1474), 50

SN65HVD1470

MSOP (10)

3.00 mm × 3.00 mm

Mbps (1476, 1477)

SN65HVD1473

SOIC (14)

8.65 mm × 3.91 mm

SN65HVD1476

2 Applications

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

•

Industrial Automation

•

Encoders and Decoders

Block Diagram

•

Building Automation

•

Security and Surveillance Networks

•

Telecommunications

3 Description

The SN65HVD147x family of full-duplex transceivers

feature the highest ESD protection in the RS-485

portfolio, supporting ±16-kV IEC61000-4-2 contact

discharge and > ±30-kV HBM ESD protection. These

RS-485 transceivers have robust 3.3-V drivers and

receivers and are offered in a standard SOIC

package as well as in a small-footprint MSOP

package.

The

large

receiver

hysteresis

of

the

SN65HVD147x

devices

provides

immunity

to

conducted differential noise and the wide operating

temperature enables reliability in harsh operating

environments.

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.