ST485B

Active

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

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  • The ST485 is al low power transceiver for RS-485 and RS-422 communication. Each part contains one driver and one receiver.

    This transceiver draw 300 μA (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 placed the driver outputs into a high-impedance state.
    The ST485 is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applications).
    The ST485 is available in three temperature range: commercial (0 °C to 70 °C), industrial (- 40 °C to 85 °C) and automotive (- 55 °C to 125 °C).

    Key Features

    • Operate from a single 5 V supply
    • 30 ns propagation delay, 5 ns skew
    • Allows up to 64 transceivers on the bus
    • Low quiescent current: 300 μA
    • - 7 V to 12 V common mode input voltage range
    • Designed for RS-485 interface application
    • 70 mV typical input hysteresis
    • Current limiting and thermal shutdown for driver overload protection
    • Driver maintains high impedance in 3-state or with the power OFF

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
ST485BDR SO-8 Tape And Reel -40 85 -
Active
0.62 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofST485BDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4993 1 Order Now
COMPEL EUROPE 13703 1 Order Now
RS COMPONENTS EUROPE 11968 2 Order Now
ARROW EUROPE 82020 0 Order Now
ARROW AMERICA 45000 2500 Order Now
MOUSER WORLDWIDE 15299 1 Order Now
Farnell Element14 EUROPE 54399 1 Order Now
ANGLIA Live EUROPE 13341 1 Order Now

Distributor reported inventory date: 2020-02-16

Distributor Name

DIGIKEY

Stock

4993

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

13703

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

11968

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

82020

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

45000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

15299

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

54399

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

13341

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-02-16

Buy now

ST485BDR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.62*

Distributor availability ofST485BDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4993 1 Order Now
COMPEL EUROPE 13703 1 Order Now
RS COMPONENTS EUROPE 11968 2 Order Now
ARROW EUROPE 82020 0 Order Now
ARROW AMERICA 45000 2500 Order Now
MOUSER WORLDWIDE 15299 1 Order Now
Farnell Element14 EUROPE 54399 1 Order Now
ANGLIA Live EUROPE 13341 1 Order Now

Distributor reported inventory date: 2020-02-16

Distributor Name

DIGIKEY

Stock

4993

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

13703

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

11968

Min.Order

2

Region

EUROPE Order Now

ARROW

Stock

82020

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

45000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

15299

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

54399

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

13341

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-02-16

Operating Temperature (°C)

(min)

-40

(max)

85

Autoshutdown

-

Marketing Status

Active

Unit Price (US$)

0.62

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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Related Applications

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS2037
      Low power RS-485/RS-422 transceiver
      16.2
      719.87 KB
      PDF
      DS2037

      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**
ST485BDR
Active
SO-8 Industrial Ecopack3

ST485BDR

Package:

SO-8

Material Declaration**:

PDF XML

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.

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