very high speed low power RS-485/RS-422 transceiver, [-40oC, 85oC] temperature range

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  • The ST485A is a low power, high speed transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration. The ST485A draws 3 mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5 V supply.

    Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic high output if both inputs are open circuit.
    The ST485A is designed for bi-directional data communications or multipoint bus transmission lines.

    Key Features

    • Latch-up free up to 500 mA
    • Current limiting and thermal shutdown for driver overload protection
    • Operate from single 5 supply
    • 70mV typical input hysteresis
    • Low supply current: 5 mA max
    • Designed for RS 485 interface applications
    • High data rate > 30 Mbps
    • Driver maintains high impedance in 3-state or with the power off
    • ±4 kV ESD protection
    • -7 to 12 common mode input voltage range

Sample & Buy

Part Number
Package
Packing Type
Temperature (°C) Autoshutdown
Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
Order from ST
min
max
ST485ABDR SO-8 Tape And Reel -40 85 -
Active
0.82 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofST485ABDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2480 1 Order Now
RS COMPONENTS EUROPE 2500 1 Order Now
MOUSER WORLDWIDE 9998 1 Order Now
Farnell Element14 EUROPE 1404 1 Order Now
ANGLIA Live EUROPE 2500 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

Distributor reported inventory date: 2019-08-23

Distributor Name

DIGIKEY

Stock

2480

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2500

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

9998

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1404

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2500

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

2500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-23

Buy now

ST485ABDR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.82*

Distributor availability ofST485ABDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2480 1 Order Now
RS COMPONENTS EUROPE 2500 1 Order Now
MOUSER WORLDWIDE 9998 1 Order Now
Farnell Element14 EUROPE 1404 1 Order Now
ANGLIA Live EUROPE 2500 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

Distributor reported inventory date: 2019-08-23

Distributor Name

DIGIKEY

Stock

2480

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2500

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

9998

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1404

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2500

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

2500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-23

Operating Temperature (°C)

(min)

-40

(max)

85

Autoshutdown

-

Marketing Status

Active

Unit Price (US$)

0.82

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Technical Documentation

    • Description Version Size Action
      DS2961
      Very high speed low power RS-485/RS-422 transceiver
      3.2
      714.13 KB
      PDF
      DS2961

      Very high speed low power RS-485/RS-422 transceiver

    • Description Version Size Action
      AN1348
      ST485: an RS-485 based interface with lower data bit errors
      3.2
      112.81 KB
      PDF
      AN1348

      ST485: an RS-485 based interface with lower data bit errors

Publications and Collaterals

    • Description Version Size Action
      Products and solutions for Smart industry 3.0
      2.99 MB
      PDF

      Products and solutions for Smart industry

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST485ABDR
Active
SO-8 Industrial Ecopack3

ST485ABDR

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.