SP3244ECY-L Equivalent & Substitute Parts

Part Overview

The SP3244ECY-L is a full-duplex RS232 transceiver IC manufactured by MaxLinear, Inc., configured with 3 drivers and 5 receivers in a 28-TSSOP surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The part operates across a 3V to 5.5V supply range with a 250kbps data rate and is suitable for legacy RS232 communication applications requiring full-duplex operation.

Substiute Parts

SP3244ECY-L

MaxLinear, Inc.In Stock: 1041SP3244ECY-L Datasheet

Current PartRFQ

MAX3241CUI+

Analog Devices Inc./Maxim IntegratedIn Stock: 956MAX3241CUI+ Datasheet

MFR RecommendedRFQ

MAX3244ECUI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1009MAX3244ECUI+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP3244ECY-L is determined by strict alignment of the following critical parameters:

• Protocol: RS232 (full-duplex communication standard)
• Number of Drivers/Receivers: 3/5 configuration
• Package / Case: 28-TSSOP form factor with identical 0.173" width and 4.40mm dimensions
• Voltage - Supply: 3V ~ 5.5V operating range
• Operating Temperature: 0°C ~ 70°C range
• Mounting Type: Surface Mount

The substitute parts identified below maintain these core electrical and mechanical specifications, ensuring direct functional equivalence and PCB-level compatibility without design modification.

Parameter Comparison

Engineering Selection Recommendations

Both MAX3241CUI+ and MAX3244ECUI+ are active, production-status components manufactured by Analog Devices Inc./Maxim Integrated and are suitable replacements for the obsolete SP3244ECY-L.

MAX3244ECUI+ provides the closest electrical alignment, matching the 250kbps data rate of the original part. This part is ROHS3 compliant and carries REACH unaffected status, supporting modern supply chain and environmental compliance requirements.

MAX3241CUI+ operates at 235Kbps, which is within acceptable tolerance for most RS232 legacy applications. This part is also ROHS3 compliant and REACH unaffected. The higher receiver hysteresis of 300 mV may provide improved noise immunity in certain signal environments compared to the original 200 mV specification.

Both substitute parts maintain identical package geometry, supply voltage range, operating temperature range, and MSL rating, ensuring direct PCB compatibility and assembly process compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can MAX3241CUI+ be used as a direct replacement for SP3244ECY-L?

A: Yes. Both parts share identical 3/5 driver/receiver configuration, 28-TSSOP package dimensions, 3V to 5.5V supply range, and 0°C to 70°C operating temperature. The 235Kbps data rate of MAX3241CUI+ is compatible with RS232 applications designed for the 250kbps SP3244ECY-L.

Q: What is the difference between MAX3244ECUI+ and MAX3241CUI+?

A: The primary differences are data rate (250kbps vs. 235Kbps) and receiver hysteresis (500 mV vs. 300 mV). Both maintain identical package, supply voltage, and temperature specifications. MAX3244ECUI+ matches the original data rate exactly.

Q: Are the substitute parts available in the same packaging format?

A: Both MAX3241CUI+ and MAX3244ECUI+ are supplied in Tube packaging and maintain the identical 28-TSSOP surface mount package geometry as the SP3244ECY-L, requiring no PCB layout modifications.

Q: Do the substitute parts meet current compliance standards?

A: Yes. Both MAX3241CUI+ and MAX3244ECUI+ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for component procurement and manufacturing.

Q: Is there any difference in moisture sensitivity between the parts?

A: No. All three parts—SP3244ECY-L, MAX3241CUI+, and MAX3244ECUI+—carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.