MAX221ECAE Equivalent & Substitute Parts

Part Overview

The MAX221ECAE is a full-duplex RS232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, configured as a 1/1 driver/receiver in a 16-SSOP surface mount package. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure direct replacement capability.

Substiute Parts

MAX221ECAE

Analog Devices Inc./Maxim IntegratedIn Stock: 5400MAX221ECAE Datasheet

Current PartRFQ

MAX221EAE+

Analog Devices Inc./Maxim IntegratedIn Stock: 728MAX221EAE+ Datasheet

Parametric EquivalentRFQ

MAX221ECAE+

Analog Devices Inc./Maxim IntegratedIn Stock: 3418MAX221ECAE+ Datasheet

Parametric EquivalentRFQ

MAX221EEAE+

Analog Devices Inc./Maxim IntegratedIn Stock: 3184MAX221EEAE+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX221ECAE are identified based on strict parametric equivalence across the following critical criteria:

Electrical Parameters (Must Match):

• Protocol: RS232
• Number of Drivers/Receivers: 1/1
• Duplex: Full
• Receiver Hysteresis: 500 mV
• Data Rate: 250 kbps
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.209", 5.30mm Width)
• Supplier Device Package: 16-SSOP

Compliance Parameters (Preferred for New Designs):

• Product Status: Active (preferred over Obsolete)
• RoHS Status: ROHS3 Compliant (preferred over non-compliant)

All three substitute parts—MAX221EAE+, MAX221ECAE+, and MAX221EEAE+—meet the mandatory electrical and mechanical equivalence criteria and are classified as active products with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—MAX221EAE+, MAX221ECAE+, and MAX221EEAE+—provide complete parametric equivalence to the MAX221ECAE and are suitable for direct replacement in applications requiring RS232 full-duplex transceiver functionality.

For New Designs and Production: Selection among the three active alternatives should be based on product availability and supply chain considerations. All three parts carry ROHS3 compliance certification, meeting current regulatory requirements for new component procurement. The obsolete status of the MAX221ECAE makes transition to any of these active equivalents necessary for ongoing production support.

Compliance Advantage: The substitute parts offer improved compliance posture compared to the original MAX221ECAE. All three alternatives are ROHS3 compliant, whereas the original part is RoHS non-compliant. This compliance improvement is significant for applications subject to environmental and regulatory restrictions.

Frequently Asked Questions (FAQ)

Q: Can MAX221EAE+, MAX221ECAE+, and MAX221EEAE+ be used interchangeably with MAX221ECAE?

A: Yes. All three substitute parts maintain identical electrical specifications (RS232 protocol, 1/1 driver/receiver configuration, 250 kbps data rate, 4.5V–5.5V supply voltage, -40°C to 85°C operating temperature) and mechanical compatibility (16-SSOP surface mount package). Direct substitution is supported without circuit modification.

Q: What is the primary reason for substitution?

A: The MAX221ECAE is classified as obsolete. The three substitute parts are active products with current manufacturing support and improved RoHS compliance (ROHS3 vs. non-compliant), making them the appropriate choice for new designs and ongoing production.

Q: Are there differences in packaging between the main part and substitutes?

A: The main part (MAX221ECAE) is supplied in standard packaging, while all three substitutes (MAX221EAE+, MAX221ECAE+, MAX221EEAE+) are supplied in Tube packaging. The physical package type (16-SSOP) and dimensions remain identical. Tube packaging is standard for active production parts and does not affect electrical or mechanical performance.

Q: Do the substitute parts require any design changes?

A: No. The substitute parts are parametric equivalents with identical pin configurations, electrical characteristics, and package dimensions. No PCB layout modifications, schematic changes, or firmware updates are required.

Q: What is the inventory status of substitute parts?

A: MAX221EAE+ has 704 units in stock, MAX221ECAE+ has 3,400 units in stock, and MAX221EEAE+ has 3,100 units in stock. All are available as new original components.