SP3245ECY-L Equivalent & Substitute Parts

Part Overview

The SP3245ECY-L is a full-duplex RS232 transceiver IC with 3 drivers and 5 receivers, manufactured by MaxLinear, Inc. in a 28-TSSOP surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. The part operates across a 3V to 5.5V supply range with a 1Mbps data rate and 200 mV receiver hysteresis, suitable for legacy RS232 communication applications requiring full-duplex operation.

Substiute Parts

SP3245ECY-L

MaxLinear, Inc.In Stock: 3707SP3245ECY-L Datasheet

Current PartRFQ

MAX3245ECUI+

Analog Devices Inc./Maxim IntegratedIn Stock: 5299MAX3245ECUI+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP3245ECY-L is determined by strict equivalence across the following critical parameters:

• Protocol and Channel Configuration: RS232 protocol with 3 drivers and 5 receivers in full-duplex mode
• Electrical Specifications: Supply voltage range 3V to 5.5V, data rate 1 Mbps
• Package Compatibility: 28-TSSOP surface mount package with identical 0.173" (4.40mm) width
• Environmental Compliance: Moisture sensitivity level 1 (unlimited), ECCN EAR99 classification

The MAX3245ECUI+ meets all these criteria and is classified as an active product with current manufacturing support, making it a direct functional equivalent for the obsolete SP3245ECY-L.

Parameter Comparison

Engineering Selection Recommendations

The MAX3245ECUI+ is the designated substitute for the obsolete SP3245ECY-L based on functional equivalence across all critical electrical and mechanical parameters. Both devices share identical channel configuration (3/5 drivers/receivers), supply voltage range (3V to 5.5V), data rate (1 Mbps), and package form factor (28-TSSOP).

The MAX3245ECUI+ offers the advantage of active product status with current manufacturing support and compliance certifications including ROHS3 and REACH unaffected status, ensuring long-term availability and regulatory compliance for new designs and legacy system replacements.

The receiver hysteresis difference (200 mV vs. 500 mV) reflects component-level variation within the RS232 specification and does not prevent functional substitution in standard RS232 communication applications.

Frequently Asked Questions (FAQ)

Q: Can the MAX3245ECUI+ directly replace the SP3245ECY-L in existing designs?

A: Yes. Both devices are pin-compatible 28-TSSOP packages with identical electrical specifications for supply voltage, data rate, and channel configuration. No circuit modifications are required for substitution.

Q: What is the significance of the receiver hysteresis difference?

A: The SP3245ECY-L specifies 200 mV receiver hysteresis while the MAX3245ECUI+ specifies 500 mV. Both values comply with RS232 standards and function within typical communication system requirements. The higher hysteresis in the MAX3245ECUI+ provides improved noise immunity in electrically noisy environments.

Q: Why is the SP3245ECY-L classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The MAX3245ECUI+ provides equivalent functionality with active manufacturing support and is the recommended alternative for new designs and system replacements.

Q: Are there packaging differences between these parts?

A: Both parts use identical 28-TSSOP surface mount packages with 0.173" (4.40mm) width. Packaging is directly interchangeable on PCB layouts designed for either device.

Q: What compliance certifications apply to the MAX3245ECUI+?

A: The MAX3245ECUI+ is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components in most jurisdictions.