DS36C280TM Equivalent & Substitute Parts

Part Overview

The DS36C280TM is a half-duplex RS422/RS485 transceiver manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device functions as a 1/1 driver/receiver interface for serial communication protocols. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Identifying compatible alternatives ensures design continuity and supply chain flexibility.

Substiute Parts

DS36C280TM

Texas InstrumentsIn Stock: 2266DS36C280TM Datasheet

Current PartRFQ

LTC485IS8#PBF

Analog Devices Inc.In Stock: 3985LTC485IS8#PBF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS36C280TM is determined by strict alignment of the following parameters:

• Protocol support: RS422 and RS485 compatibility required
• Driver/Receiver configuration: 1/1 (one driver, one receiver) mandatory
• Duplex mode: Half-duplex operation required
• Receiver hysteresis: 70 mV specification
• Supply voltage range: 4.75V ~ 5.25V
• Operating temperature range: -40°C ~ 85°C
• Package type: 8-SOIC surface mount form factor
• Pin count and electrical interface: 8-pin configuration

The LTC485IS8#PBF from Analog Devices Inc. meets all these criteria, providing functional and electrical equivalence for direct substitution in applications currently using the DS36C280TM.

Parameter Comparison

Engineering Selection Recommendations

The LTC485IS8#PBF is the qualified substitute for the DS36C280TM based on the following factors:

• Electrical parameter alignment: All critical specifications including protocol support, driver/receiver configuration, hysteresis, supply voltage, and temperature range are identical.
• Package compatibility: Both devices use the 8-SOIC surface mount package with matching pinout and physical dimensions, enabling direct PCB replacement.
• Product status advantage: The LTC485IS8#PBF is active production, ensuring long-term availability and supply chain stability compared to the obsolete DS36C280TM.
• Compliance improvement: The LTC485IS8#PBF meets ROHS3 compliance standards, whereas the DS36C280TM is RoHS non-compliant, supporting modern regulatory requirements.
• Inventory availability: The LTC485IS8#PBF maintains higher stock levels (3900 pcs) compared to the DS36C280TM (2229 pcs), facilitating procurement for production volumes.

Frequently Asked Questions (FAQ)

Q: Can the LTC485IS8#PBF replace the DS36C280TM in existing designs?

A: Yes. Both devices share identical electrical specifications for protocol support, driver/receiver configuration, hysteresis, supply voltage, operating temperature range, and 8-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: What are the key differences between these parts?

A: The primary differences are product status and compliance. The LTC485IS8#PBF is in active production with ROHS3 compliance, while the DS36C280TM is obsolete and RoHS non-compliant. Functionally and electrically, they are equivalent.

Q: Are there any package or pinout considerations?

A: Both parts use the 8-SOIC surface mount package with 0.154" width (3.90mm). Pin configuration and electrical interface are identical, enabling direct PCB replacement without layout modifications.

Q: Why is the DS36C280TM classified as obsolete?

A: Obsolescence is a manufacturer designation indicating the part is no longer in active production. The LTC485IS8#PBF provides continued access to equivalent functionality from an active manufacturer.

Q: What compliance certifications apply to these parts?

A: Both devices carry REACH Unaffected and EAR99 ECCN classifications. The LTC485IS8#PBF additionally meets ROHS3 compliance requirements, supporting modern environmental and regulatory standards.