SP337EUCT-L Equivalent & Substitute Parts

Part Overview

The SP337EUCT-L is a 2/2 transceiver IC with full-duplex RS232, RS422, and RS485 protocol support, manufactured by MaxLinear, Inc. in a 28-SOIC surface mount package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across 3.3V to 5V supply voltages with a maximum data rate of 20Mbps and receiver hysteresis of 500mV, suitable for industrial and commercial serial communication applications.

Substiute Parts

SP337EUCT-L

MaxLinear, Inc.In Stock: 966SP337EUCT-L Datasheet

Current PartRFQ

SP338EER1-L

MaxLinear, Inc.In Stock: 27315SP338EER1-L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP337EUCT-L is determined by the following critical parameters:

• Protocol compatibility: RS232, RS422, RS485 support
• Duplex mode: Full-duplex operation
• Supply voltage range: 3.3V and 5V compatibility
• Surface mount technology: Enables PCB integration without redesign
• Transceiver functionality: Driver and receiver channel configuration

The SP338EER1-L qualifies as a substitute based on identical protocol support, full-duplex operation, and compatible supply voltage specifications. Differences in package type (40-QFN vs. 28-SOIC), channel configuration (3/5 vs. 2/2), and operating temperature range represent design trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The SP338EER1-L is the manufacturer-recommended substitute for the obsolete SP337EUCT-L. Selection of this substitute is supported by:

• Active product status ensuring long-term availability and supply chain stability
• ROHS3 compliance and REACH unaffected status meeting current environmental regulations
• Identical protocol support and full-duplex operation maintaining functional compatibility
• Extended operating temperature range (-40°C to 85°C) providing broader application coverage
• Identical MSL rating (3, 168 Hours) matching moisture sensitivity requirements

Design considerations for implementation include package footprint change from 28-SOIC to 40-QFN, which requires PCB layout modification. The increased channel configuration (3/5 vs. 2/2) provides additional functionality for applications requiring expanded transceiver capacity. The reduced data rate specification (1Mbps vs. 20Mbps) is suitable for standard serial communication applications but may not support high-speed requirements.

Frequently Asked Questions (FAQ)

Q: Can the SP338EER1-L directly replace the SP337EUCT-L without PCB modification?

A: No. The package change from 28-SOIC to 40-QFN requires PCB footprint redesign. Pin assignments must be verified against the respective datasheets to ensure proper signal routing.

Q: What are the key functional differences between these parts?

A: The SP338EER1-L provides 3 drivers and 5 receivers compared to the SP337EUCT-L's 2/2 configuration. Both support identical protocols (RS232, RS422, RS485) and full-duplex operation. The SP338EER1-L operates across a wider temperature range (-40°C to 85°C vs. 0°C to 70°C).

Q: Is the SP338EER1-L suitable for high-speed serial communication?

A: The SP338EER1-L specifies a maximum data rate of 1Mbps, compared to the SP337EUCT-L's 20Mbps. Applications requiring data rates above 1Mbps should evaluate alternative solutions.

Q: What compliance certifications apply to the SP338EER1-L?

A: The SP338EER1-L is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Are both parts available in the same packaging options?

A: No. The SP337EUCT-L is supplied in 28-SOIC packaging, while the SP338EER1-L is supplied in 40-QFN (6x6) packaging with tray packaging option. This difference affects PCB design, assembly processes, and component handling.