R

D

R

D

DE

RE

Y

Z

B

A

GND

R

D

R

D

Y

Z

B

A

GND

SN65HVD70,

SN65HVD73, and

SN65HVD76

SN65HVD71,

SN65HVD74, and

SN65HVD77

Product

Folder

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SN65HVD70, SN65HVD71, SN65HVD73, SN65HVD74, SN65HVD76, SN65HVD77

SLLSEI9E – MAY 2014 – REVISED OCTOBER 2014

SN65HVD7x 3.3-V Full-Duplex RS-485 Transceivers With ±12-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

–

> ±12-kV IEC61000-4-2 Contact Discharge

cable runs.

–

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

The SN65HVD71, SN65HVD74, and SN65HVD77

•

Extended Industrial Temperature Range:

devices are fully enabled with no external enabling

pins.

–40°C to 125°C

•

Large Receiver Hysteresis (70 mV) for Noise

The SN65HVD70, SN65HVD73, and SN65HVD76

Rejection

devices have active-high driver enables and active-

low receiver enables. A low, less than 5-µA standby

•

Low Power Consumption

current can be achieved by disabling both the driver

–

< 1.1-mA Quiescent Current During Operation

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

SN65HVD71

MSOP (8)

3.00 mm × 3.00 mm

SN65HVD74

•

Signaling Rate Options Optimized for:

SOIC (8)

4.90 mm × 3.91 mm

SN65HVD77

400 kbps (70, 71), 20 Mbps (73, 74), 50 Mbps

SN65HVD70

MSOP (10)

3.00 mm × 3.00 mm

(76, 77)

SN65HVD73

SOIC (14)

8.65 mm × 3.91 mm

SN65HVD76

2 Applications

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

the end of the datasheet.

•

E-meters

•

Industrial Automation

Block Diagram

•

Building Automation

•

Security and Surveillance

•

Encoders and Decoders

3 Description

These devices extend the RS-485 portfolio with a

family of full-duplex transceivers with robust 3.3-V

drivers and receivers and high levels of ESD

protection. The ESD protection includes > ±30-kV

HBM and > ±12-kV IEC61000-4-2 contact discharge.

The large receiver hysteresis of the SN65HVD7x

devices provides immunity to conducted differential

noise and the wide operating temperature enables

reliability

in

harsh

operating

environments.

The

SN65HVD7x devices are offered in a standard SOIC

package as well as in a small-footprint MSOP

package.

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.