SP337EUET-L/TR Equivalent & Substitute Parts

Part Overview

The SP337EUET-L/TR 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 identification of suitable substitute parts essential for ongoing system support and new design implementations.

The obsolete status necessitates alternative component sourcing to maintain supply chain continuity and ensure long-term product availability for applications requiring multi-protocol serial communication interfaces.

Substiute Parts

SP337EUET-L/TR

MaxLinear, Inc.In Stock: 1109SP337EUET-L/TR Datasheet

Current PartRFQ

SP338EER1-L/TR

MaxLinear, Inc.In Stock: 1811SP338EER1-L/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP337EUET-L/TR is determined by the following critical parameters:

Protocol Compatibility: The substitute must support RS232, RS422, and RS485 protocols to maintain functional equivalence in multi-protocol applications.

Duplex Mode: Full-duplex operation is required to preserve bidirectional communication capability.

Data Rate: Minimum 1 Mbps data rate support ensures performance parity.

Supply Voltage Range: Compatibility with 3.3V and 5V supply rails is necessary for integration into existing power distribution architectures.

Operating Temperature Range: The -40°C to 85°C specification must be maintained for environmental consistency.

Mounting Type: Surface mount technology is required for PCB assembly compatibility.

The SP338EER1-L/TR qualifies as a substitute based on these parameters. While it features enhanced specifications (3/5 driver/receiver configuration, improved receiver hysteresis, and active product status), it maintains full compatibility with the core functional requirements of the SP337EUET-L/TR.

Parameter Comparison

Engineering Selection Recommendations

The SP338EER1-L/TR is the recommended substitute for the obsolete SP337EUET-L/TR based on the following engineering criteria:

Product Status: The SP338EER1-L/TR maintains active product status with MaxLinear, Inc., ensuring long-term availability and supply chain reliability compared to the obsolete SP337EUET-L/TR.

Regulatory Compliance: The SP338EER1-L/TR is RoHS compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Functional Equivalence: Both components maintain identical protocol support (RS232, RS422, RS485), duplex mode (full), data rate (1 Mbps), supply voltage compatibility (3.3V, 5V), and operating temperature range (-40°C to 85°C).

Enhanced Performance: The SP338EER1-L/TR provides improved receiver hysteresis (300 mV versus 500 mV), offering superior noise immunity and signal integrity in multi-protocol serial communication applications.

Design Considerations: PCB layout modifications are required due to package change from 28-SOIC to 40-VFQFN. The increased driver/receiver count (3/5 versus 2/2) provides additional interface channels for expanded system functionality.

Frequently Asked Questions (FAQ)

Q: Can the SP338EER1-L/TR directly replace the SP337EUET-L/TR without design modifications?

A: The SP338EER1-L/TR is functionally equivalent for core RS232, RS422, and RS485 protocol requirements. However, PCB layout redesign is necessary due to the package change from 28-SOIC to 40-VFQFN. Pin assignments and footprint geometry differ between the two packages.

Q: What is the significance of the 3/5 driver/receiver configuration in the SP338EER1-L/TR compared to the 2/2 configuration of the SP337EUET-L/TR?

A: The SP338EER1-L/TR provides three drivers and five receivers, compared to two drivers and two receivers in the SP337EUET-L/TR. This enhanced configuration supports additional serial communication channels within a single IC, enabling more complex multi-protocol interface implementations.

Q: Does the improved receiver hysteresis (300 mV) of the SP338EER1-L/TR affect compatibility with existing systems designed for the SP337EUET-L/TR?

A: The lower receiver hysteresis of the SP338EER1-L/TR (300 mV versus 500 mV) provides improved noise immunity and faster signal transitions. This enhancement is backward compatible with systems designed for the SP337EUET-L/TR, as it represents superior performance within the same protocol specifications.

Q: What are the supply voltage specifications for each component?

A: The SP337EUET-L/TR operates across a 3.3V to 5V range. The SP338EER1-L/TR supports discrete 3.3V and 5V supply voltages. Both components are compatible with standard industrial power distribution architectures.

Q: Is the SP338EER1-L/TR RoHS compliant?

A: Yes, the SP338EER1-L/TR is RoHS compliant, meeting current environmental regulations for hazardous substance restrictions in electronic components. The SP337EUET-L/TR RoHS status is not specified in available documentation.

Q: What moisture sensitivity considerations apply to these components?

A: Both the SP337EUET-L/TR and SP338EER1-L/TR carry a Moisture Sensitivity Level (MSL) rating of 3, with a 168-hour floor life specification. Standard moisture control procedures during storage, handling, and assembly are required for both components.