Overview
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
eDesignSuite
Get Started
Partner products
Sales Briefcase
  • 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

Recommended for you

EDA Symbols, Footprints and 3D Models

STMicroelectronics - ST485B

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Autoshutdown
Budgetary Price (US$)*/Qty
More info
min
max
ST485BDR Available at 10 distributors

Distributor availability ofST485BDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9618 1 Order Now
COMPEL EUROPE 12979 1 Order Now
RS COMPONENTS EUROPE 7866 2 Order Now
AVNET AMERICA 115000 0 Order Now
FUTURE WORLDWIDE 12500 2500 Order Now
ARROW EUROPE 143493 0 Order Now
ARROW AMERICA 30000 2500 Order Now
MOUSER WORLDWIDE 18410 1 Order Now
Farnell Element14 EUROPE 24546 1 Order Now
ANGLIA Live EUROPE 57370 1 Order Now

Distributor reported inventory date: 2020-11-27

Distributor Name

DIGIKEY

Stock

9618

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

12979

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

7866

Min.Order

2

Region

EUROPE Order Now

AVNET

Stock

115000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

12500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

143493

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

30000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

18410

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

24546

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

57370

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-27

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 85 - 0.62 / 1k
MORE INFO

Unit Price (US$):

0.62

Country of Origin:

CHINA

ST485BDR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.62 / 1k

Distributor availability ofST485BDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9618 1 Order Now
COMPEL EUROPE 12979 1 Order Now
RS COMPONENTS EUROPE 7866 2 Order Now
AVNET AMERICA 115000 0 Order Now
FUTURE WORLDWIDE 12500 2500 Order Now
ARROW EUROPE 143493 0 Order Now
ARROW AMERICA 30000 2500 Order Now
MOUSER WORLDWIDE 18410 1 Order Now
Farnell Element14 EUROPE 24546 1 Order Now
ANGLIA Live EUROPE 57370 1 Order Now

Distributor reported inventory date: 2020-11-27

Distributor Name

DIGIKEY

Stock

9618

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

12979

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

7866

Min.Order

2

Region

EUROPE Order Now

AVNET

Stock

115000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

12500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

143493

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

30000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

18410

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

24546

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

57370

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

85

Autoshutdown

-

Budgetary Price (US$)* / Qty

0.62 / 1k

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