STR485

Active
Design Win Education

3.3V RS485 compatible with 1.8V I/Os and selectable speed 20Mbps or 250kbps

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Product overview

Description

The STR485 is a low power differential line transceiver for data transmission standard RS485 applications in half-duplex mode. Data and enable signals are compatible with 1.8 V or 3.3 V supplies. Two speeds are selectable through SLR pin: fast data rate up to 20 Mbps or slow data rate for extended cable running to 250 kbps.
Excessive power dissipation caused by bus contention or faults is prevented by thermal shutdown circuit that forces the driver outputs into a high impedance state. The receiver has a fail-safe feature, which guarantees a high output state when the inputs are left open, shorted or idle.
  • All features

    • Half-duplex RS485 transceiver
    • 1.65 V to 3.6 V supply for data and enable signals
    • 3 V to 3.6 V supply for bus supply
    • High speed: up to 20 Mbps data rate
    • Low speed selected by SLR pin : 250 kbps
    • Up to 256 transceivers on the bus
    • Fail safe receiver (bus open, idle and shorted)
    • Thermal shutdown protection
    • Low quiescent current in shutdown mode
    • Extended temperature range : -40 °C to +105 °C
    • Available in industry standard DFN10
    • Bus-pin protection more than:
      • ±4 kV HBM protection
      • ±8 kV IEC61000-4-2 contact discharge
      • ±16 kV IEC61000-4-2 air discharge
      • Compliant IEC61000-4-4 fast transient burst Class B

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STR485

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Footprints

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STR485LVQT
Active
VDFPN 10 3x3x1.0 Industrial Ecopack3

STR485LVQT

Package:

VDFPN 10 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VDFPN 10 3x3x1.0

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

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Part Number
Order from distributors
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Autoshutdown
Budgetary Price (US$)*/Qty
Unit Price (US$)
Country of Origin
min
max
STR485LVQT Available at 4 distributors

Distributor availability ofSTR485LVQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 14220 1 Buy from Distributor
YOSUN ASIA/PACIFIC 200 1 Buy from Distributor
COMPEL EUROPE 1 1 Buy from Distributor
Farnell Element14 EUROPE 3930 1 Buy from Distributor

Distributor reported inventory date: 2022-07-03

Distributor Name

DIGIKEY

Stock

14220

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

200

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

COMPEL

Stock

1

Min.Order

1

Farnell Element14

Stock

3930

Min.Order

1

Distributor reported inventory date: 2022-07-03

Active
EAR99 NEC Tape and Reel VDFPN 10 3x3x1.0 -40 105 -

1.8686

MALAYSIA

STR485LVQT Active

Package:
VDFPN 10 3x3x1.0
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STR485LVQT

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

105

Autoshutdown:

-

Country of Origin:

MALAYSIA

Distributor availability ofSTR485LVQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 14220 1 Buy from Distributor
YOSUN ASIA/PACIFIC 200 1 Buy from Distributor
COMPEL EUROPE 1 1 Buy from Distributor
Farnell Element14 EUROPE 3930 1 Buy from Distributor

Distributor reported inventory date: 2022-07-03

Distributor Name

DIGIKEY

Stock

14220

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

200

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

COMPEL

Stock

1

Min.Order

1

Farnell Element14

Stock

3930

Min.Order

1

Distributor reported inventory date: 2022-07-03

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