MAX3245ECWI RS232 Transceiver - Equivalent & Substitute Parts

Part Overview

The MAX3245ECWI is a full-duplex RS232 transceiver interface IC manufactured by Analog Devices Inc./Maxim Integrated. This device integrates 3 drivers and 5 receivers in a 28-SOIC surface mount package, supporting data rates up to 1 Mbps across supply voltages from 3V to 5.5V. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MAX3245ECWI

Analog Devices Inc./Maxim IntegratedIn Stock: 2249MAX3245ECWI 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: RS232
• Number of Drivers/Receivers: 3/5 configuration
• Duplex Mode: Full
• Data Rate: 1 Mbps minimum
• Voltage Supply Range: 3V ~ 5.5V
• Receiver Hysteresis: 500 mV
• Package Type: 28-SOIC
• Mounting Type: Surface Mount

All identified substitute parts maintain identical electrical specifications and mechanical packaging, ensuring direct functional replacement without circuit redesign. Differences in product status and RoHS compliance are noted for procurement and regulatory considerations.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production transitions, MAX3245ECWI+ and MAX3245CWI+ are the primary recommended substitutes. Both parts are manufactured by Analog Devices Inc./Maxim Integrated with active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. These variants maintain identical electrical and mechanical specifications to the original MAX3245ECWI.

The SN75C3243DW from Texas Instruments provides a functionally equivalent alternative with ROHS3 compliance. However, this part carries a Last Time Buy status, indicating limited future availability. Selection of this device should be evaluated against long-term supply chain requirements.

For applications with existing RoHS non-compliant component restrictions, the MAX3245ECWI remains available in current inventory but should be transitioned to compliant alternatives for new production.

Frequently Asked Questions (FAQ)

Q: Can MAX3245ECWI+ directly replace MAX3245ECWI without circuit modification?

A: Yes. Both parts share identical electrical specifications (3/5 drivers/receivers, RS232 protocol, 1 Mbps data rate, 3V-5.5V supply, 500 mV receiver hysteresis) and 28-SOIC packaging. Direct substitution is supported at the circuit level.

Q: What is the difference between MAX3245ECWI+ and MAX3245CWI+?

A: Both are Analog Devices Inc./Maxim Integrated RS232 transceivers with identical electrical and mechanical parameters. The primary distinction is product status and packaging designation. Both are active products suitable for new designs.

Q: Is the Texas Instruments SN75C3243DW a suitable long-term replacement?

A: The SN75C3243DW meets all electrical and mechanical substitution criteria. However, its Last Time Buy status indicates limited future availability. For applications requiring extended production runs, Analog Devices Inc./Maxim Integrated variants (MAX3245ECWI+ or MAX3245CWI+) are preferred for supply continuity.

Q: Are all substitute parts ROHS3 compliant?

A: MAX3245ECWI+ and MAX3245CWI+ are ROHS3 compliant. SN75C3243DW is also ROHS3 compliant. The original MAX3245ECWI is RoHS non-compliant. Compliance requirements should be verified against your application and regulatory standards.

Q: Do all parts use the same 28-SOIC package?

A: Yes. All listed parts use the 28-SOIC (0.295", 7.50mm Width) surface mount package, ensuring mechanical compatibility and identical PCB footprints.