SP3221ECA-L/TR Equivalent & Substitute Parts

Part Overview

The SP3221ECA-L/TR is a 1/1 RS232 transceiver IC manufactured by MaxLinear, Inc., housed in a 16-SSOP surface mount package. This component functions as a single-channel RS232 interface device, converting between RS232 signal levels and TTL/CMOS logic levels. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain design continuity and ensure long-term component availability for production and maintenance applications.

Substiute Parts

SP3221ECA-L/TR

MaxLinear, Inc.In Stock: 745SP3221ECA-L/TR Datasheet

Current PartRFQ

SP3221EEA-L/TR

MaxLinear, Inc.In Stock: 1859SP3221EEA-L/TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP3221ECA-L/TR is determined by strict equivalence across the following critical parameters:

• Protocol Compatibility: RS232 transceiver functionality
• Channel Configuration: 1 driver and 1 receiver channel
• Package Specification: 16-SSOP surface mount package with identical 0.209" (5.30mm) width
• Electrical Performance: Data rate of 250 kbps, receiver hysteresis of 300 mV
• Supply Voltage: 3V to 5.5V operating range
• Mounting Technology: Surface mount configuration

The SP3221EEA-L/TR qualifies as a direct substitute based on complete alignment with these parameters. The substitute part maintains identical electrical specifications, package geometry, and functional characteristics while offering the advantage of active product status and improved operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The SP3221EEA-L/TR is the appropriate substitute for the obsolete SP3221ECA-L/TR based on the following engineering criteria:

Functional Equivalence: Both parts are manufactured by MaxLinear, Inc., and share identical RS232 transceiver specifications, channel configuration, package geometry, and electrical performance parameters. Pin-for-pin compatibility is maintained.

Product Status: The SP3221EEA-L/TR holds active product status, ensuring continued availability, manufacturing support, and supply chain reliability. The original SP3221ECA-L/TR is obsolete and subject to discontinuation.

Compliance and Certification: The SP3221EEA-L/TR is RoHS compliant, meeting current environmental and regulatory requirements for electronic components in most jurisdictions.

Operating Temperature Advantage: The substitute part extends the operating temperature range to -40°C ~ 85°C, compared to the original 0°C ~ 70°C specification. This provides enhanced thermal performance for applications requiring wider temperature operation.

Packaging and Handling: Both parts are supplied in Tape & Reel format with identical MSL 2 moisture sensitivity ratings, ensuring compatible storage and assembly procedures.

Frequently Asked Questions (FAQ)

Q: Are the SP3221ECA-L/TR and SP3221EEA-L/TR pin-compatible?

A: Yes. Both parts use the 16-SSOP package with identical pin assignments and electrical characteristics. Direct PCB layout compatibility is maintained without modification.

Q: What is the primary difference between these two parts?

A: The SP3221EEA-L/TR is the active production equivalent of the obsolete SP3221ECA-L/TR. The substitute offers an extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) and RoHS compliance certification.

Q: Can I use the SP3221EEA-L/TR as a drop-in replacement?

A: Yes. The substitute part is electrically and mechanically equivalent. No circuit modifications, PCB redesign, or firmware changes are required for substitution.

Q: Does the extended temperature range of the substitute part affect my application?

A: The extended temperature range of the SP3221EEA-L/TR provides additional operational margin. If your application operates within the original 0°C to 70°C range, both parts perform identically. The substitute offers enhanced capability without penalty.

Q: Are there any supply chain considerations for this substitution?

A: The SP3221EEA-L/TR is actively manufactured and stocked. The original SP3221ECA-L/TR is obsolete and subject to limited availability. Transition to the substitute part is recommended to ensure long-term component supply security.

Q: What is the MSL rating, and does it affect handling?

A: Both parts carry MSL 2 (1 Year) moisture sensitivity rating. Standard moisture control procedures during storage and assembly apply equally to both components. No additional handling precautions are required for the substitute.