SCLT3-8BT8

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Protected digital input termination with serialized state transfer

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Product overview

Description

The SCLT3 series is an octal industrial digital input IC which drastically reduces the power dissipation of the digital input modules. Its current-sinking inputs can be configured for Type 1, Type 2, or Type 3 inputs as per IEC 61131-2 with few external components.

The SCLT3 series includes a serial interface which translates, conditions and serializes the data to CMOS-compatible signals through SPI. Combining its daisy-chaining capability with its accurate current limitation, the SCLT3 series enhances the I/O module’s density by cutting the power dissipation and reducing the number of optocouplers.

The SCLT3 series can be evaluated thanks to the STEVAL-IFP030V1 evaluation board. For detailed application guidelines refer to AN2846.

  • All features

    • Eight current-sinking digital inputs with serializer
    • Enables inputs to meet type 1, 2 and 3 characteristic of IEC 61131-2 standard
    • Adjustable and accurate input current limitation for low power and heat dissipation:
      • 2.35 mA typ for Type 1 and Type 3
    • Integrated glitch and debounce filter with selectable delay time: 20 µs to 3 ms for EMC robustness
    • 35 V reverse polarity capable
    • SPI-Compatible Serial Interface 8-bit
      • Optional 16-bit mode with parity check, and diagnostics (temperature alarm, voltage alarms)
    • Daisy-Chain SPI to reduce isolation channels
    • 5 V voltage regulator
    • Energyless Field-Side LED drivers for visual status indication
    • Operating ambient temperature range from -40 °C to 105 °C
    • Packages
      • HTSSOP-38 – 500 µm pitch
      • QFN-48L – 500 µm pitch
    • Complies with the following standards:
      • IEC 61000-4-2 level 4: ±15 kV (air discharge)
      • IEC 61000-4-2 level 4: ±8 kV (contact discharge)
      • IEC 61000-4-5 Surge ±1 kV /42 Ω with minimum 1 kΩ pulse resistor at field inputs

Circuit Diagram

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SCLT3-8BT8
Active
TSSOP-38L Industrial Ecopack2
SCLT3-8BT8-TR
Active
TSSOP-38L Industrial Ecopack2

SCLT3-8BT8

Package:

TSSOP-38L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-38L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SCLT3-8BT8-TR

Package:

TSSOP-38L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-38L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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
Marketing Status
Budgetary Price (US$)*/Qty
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Order from distributors
Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Temperature (°C)
Operating Temperature (°C) (min)
min
max
SCLT3-8BT8-TR
Available at distributors

Distributor availability of SCLT3-8BT8-TR

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Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
TSSOP-38L Tape and Reel PHILIPPINES EAR99 - -

-

SCLT3-8BT8
Available at distributors

Distributor availability of SCLT3-8BT8

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
TSSOP-38L Tube PHILIPPINES EAR99 - -

-

SCLT3-8BT8-TR Active

Budgetary Price (US$)*/Qty:
-
Package:
TSSOP-38L
Packing Type:
Tape and Reel
RoHS:
-
Country of Origin:
PHILIPPINES
ECCN (US):
EAR99
ECCN (EU):
-

Part Number:

SCLT3-8BT8-TR

Operating Temperature (°C)

Min:

-

Max:

-

SCLT3-8BT8 Active

Budgetary Price (US$)*/Qty:
-
Package:
TSSOP-38L
Packing Type:
Tube
RoHS:
-
Country of Origin:
PHILIPPINES
ECCN (US):
EAR99
ECCN (EU):
-

Part Number:

SCLT3-8BT8

Operating Temperature (°C)

Min:

-

Max:

-

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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