MAX3244CWI RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX3244CWI is a full-duplex RS232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for serial communication applications requiring 3 drivers and 5 receivers in a 28-SOIC surface mount package. The device operates across a 3V to 5.5V supply voltage range with a maximum data rate of 250kbps and supports operating temperatures from 0°C to 70°C.

The MAX3244CWI is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently using this transceiver.

Substiute Parts

MAX3244CWI

Analog Devices Inc./Maxim IntegratedIn Stock: 850MAX3244CWI Datasheet

Current PartRFQ

MAX3241ECWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 906MAX3241ECWI+ Datasheet

Parametric EquivalentRFQ

MAX3244ECWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1101MAX3244ECWI+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3244CWI is determined by strict equivalence across the following critical parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 3/5
• Duplex Mode: Full
• Receiver Hysteresis: 500 mV
• Data Rate: 250kbps
• Voltage Supply Range: 3V ~ 5.5V
• Operating Temperature Range: 0°C ~ 70°C
• Package / Case: 28-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

The substitute parts identified—MAX3241ECWI+ and MAX3244ECWI+—meet all electrical and mechanical parameters required for direct substitution. Both parts maintain identical functional specifications while offering improved product status and compliance certifications compared to the obsolete MAX3244CWI.

Parameter Comparison

Engineering Selection Recommendations

Both MAX3241ECWI+ and MAX3244ECWI+ are qualified substitutes for the obsolete MAX3244CWI based on complete electrical and mechanical parameter equivalence.

MAX3244ECWI+ is the primary substitute, offering the same base product number (MAX3244) with active product status and ROHS3 compliance. This part provides direct functional replacement with improved supply chain availability and regulatory compliance.

MAX3241ECWI+ is an alternative substitute with active product status and ROHS3 compliance. While based on a different base product number (MAX3241), it maintains identical electrical specifications and package configuration, making it suitable for applications where the MAX3244ECWI+ is unavailable.

Both substitute parts carry REACH Unaffected status and EAR99 ECCN classification, matching the regulatory profile of the original part. Selection between the two substitutes should be based on current inventory availability and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can MAX3241ECWI+ and MAX3244ECWI+ be used interchangeably with MAX3244CWI?

A: Yes. Both parts meet all electrical and mechanical specifications required for direct substitution. They maintain identical driver/receiver configuration (3/5), RS232 protocol support, data rate (250kbps), supply voltage range (3V ~ 5.5V), operating temperature range (0°C ~ 70°C), and 28-SOIC package dimensions.

Q: What is the primary advantage of using MAX3244ECWI+ or MAX3241ECWI+ over MAX3244CWI?

A: Both substitute parts carry active product status and ROHS3 compliance, compared to the obsolete status and RoHS non-compliance of the MAX3244CWI. This ensures long-term supply availability and compliance with current regulatory requirements.

Q: Are there any differences in pin configuration between these parts?

A: No. All three parts use the 28-SOIC package with identical pin assignments for RS232 transceiver functionality.

Q: Which substitute should be selected if both are available?

A: MAX3244ECWI+ is recommended as the primary choice due to matching base product number (MAX3244). MAX3241ECWI+ serves as an alternative when MAX3244ECWI+ availability is limited, with no functional or electrical differences affecting application performance.

Q: Are there any compliance or certification differences?

A: Both substitutes are ROHS3 compliant and REACH Unaffected, providing improved regulatory compliance compared to the RoHS non-compliant MAX3244CWI. All three parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.