MAX3245ECWI+ Equivalent & Substitute Parts

Part Overview

The MAX3245ECWI+ is a full-duplex RS232 transceiver IC manufactured by Analog Devices Inc./Maxim Integrated, configured with 3 drivers and 5 receivers in a 28-SOIC surface mount package. This interface component operates across 3V to 5.5V supply voltage with a 1Mbps data rate, suitable for serial communication applications requiring RS232 protocol compliance. The part is currently in active production status with 1041 units available in inventory. Equivalent and substitute parts are identified when they maintain identical electrical specifications, mechanical compatibility, and functional parameters across the RS232 transceiver category.

Substiute Parts

MAX3245ECWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1080MAX3245ECWI+ Datasheet

Current PartRFQ

MAX3245CWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 922MAX3245CWI+ Datasheet

Parametric EquivalentRFQ

MAX3245ECWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1080MAX3245ECWI+ Datasheet

Parametric EquivalentRFQ

SN75C3243DW

Texas InstrumentsIn Stock: 1119SN75C3243DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3245ECWI+ is determined by strict equivalence across the following critical parameters:

• Protocol Compatibility: RS232 full-duplex transceiver
• Channel Configuration: 3 drivers and 5 receivers
• Electrical Performance: 1Mbps data rate, 500 mV receiver hysteresis, 3V–5.5V supply voltage range
• Mechanical Compatibility: 28-SOIC package with identical 0.295" (7.50mm) width
• Surface Mount Configuration: Identical mounting type and supplier device package
• Environmental & Compliance: Operating temperature 0°C–70°C, ROHS3 compliance, MSL Level 1

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Variations in manufacturer, product status, or inventory levels do not affect substitution eligibility when electrical and mechanical specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

MAX3245CWI+ (Analog Devices Inc./Maxim Integrated): This part is a direct parametric equivalent with identical electrical and mechanical specifications. Both MAX3245ECWI+ and MAX3245CWI+ share the same base product number (MAX3245) and maintain active production status. Selection between these two Maxim variants depends on inventory availability and procurement lead times.

SN75C3243DW (Texas Instruments): This part meets all critical substitution parameters including protocol, channel configuration, data rate, supply voltage, and package specifications. However, this part carries a "Last Time Buy" product status, indicating discontinued production with limited future availability. Use of this substitute should be evaluated against long-term supply chain requirements and design lifecycle planning.

All three parts maintain ROHS3 compliance, MSL Level 1 rating, and identical operating temperature ranges, ensuring regulatory and environmental compatibility across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can MAX3245CWI+ be used as a direct replacement for MAX3245ECWI+?

A: Yes. Both parts are parametric equivalents with identical RS232 transceiver specifications, 3/5 driver/receiver configuration, 1Mbps data rate, 3V–5.5V supply voltage, and 28-SOIC package. The difference in part number designation does not affect electrical or mechanical compatibility.

Q: Is SN75C3243DW suitable for new designs?

A: SN75C3243DW meets all electrical and mechanical substitution criteria. However, its "Last Time Buy" status indicates production discontinuation. For new designs with extended lifecycle requirements, MAX3245ECWI+ or MAX3245CWI+ are preferred due to active production status and assured long-term availability.

Q: What determines if a part can substitute for MAX3245ECWI+?

A: Substitution eligibility requires matching specifications across protocol (RS232), channel configuration (3/5), data rate (1Mbps), supply voltage range (3V–5.5V), receiver hysteresis (500 mV), operating temperature (0°C–70°C), and package type (28-SOIC). All listed parts satisfy these criteria.

Q: Are there package compatibility concerns when switching between these parts?

A: No. All three parts use identical 28-SOIC packaging with 0.295" (7.50mm) width and surface mount configuration. PCB layout and footprint remain unchanged across substitutions.

Q: Do compliance certifications differ between these parts?

A: No. All parts maintain ROHS3 compliance, MSL Level 1 rating, REACH unaffected status, and identical EAR99 and HTSUS classifications. Regulatory and environmental requirements are satisfied uniformly across all substitutes.