MAX3222IDWR Equivalent & Substitute Parts

Part Overview

The MAX3222IDWR is a 2/2 transceiver IC implementing full RS232 protocol functionality in a 20-SOIC surface mount package. This device operates across a 3V to 5.5V supply range and supports data rates up to 250kbps with 300mV receiver hysteresis. The part is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

MAX3222IDWR

Texas InstrumentsIn Stock: 5536MAX3222IDWR Datasheet

Current PartRFQ

MAX3222EIDWR

Texas InstrumentsIn Stock: 2103MAX3222EIDWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3222IDWR is determined by the following critical parameters:

• Protocol Compatibility: RS232 full duplex transceiver functionality
• Channel Configuration: 2 drivers and 2 receivers (2/2 architecture)
• Package Specification: 20-SOIC form factor with identical pin pitch and dimensions
• Electrical Specifications: Supply voltage range 3V to 5.5V, operating temperature -40°C to 85°C
• Receiver Hysteresis: 300mV threshold specification
• Compliance Standards: ROHS3 compliance and REACH unaffected status

The MAX3222EIDWR qualifies as a direct substitute based on matching all critical parameters while offering enhanced performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The MAX3222EIDWR is a qualified substitute for the MAX3222IDWR based on functional equivalence across all critical electrical and mechanical parameters. The substitute part maintains identical protocol support, channel configuration, package form factor, supply voltage range, and operating temperature specifications. Both parts achieve ROHS3 compliance and REACH unaffected status.

The MAX3222EIDWR offers superior performance with a maximum data rate of 500kbps compared to the 250kbps specification of the main part, providing additional operational headroom without compromising compatibility. The substitute part carries Active product status, ensuring long-term availability and supply chain stability, whereas the main part is designated Last Time Buy.

Selection of the MAX3222EIDWR is appropriate for new designs and production continuity applications requiring RS232 2/2 transceiver functionality in 20-SOIC packaging.

Frequently Asked Questions (FAQ)

Q: Can the MAX3222EIDWR directly replace the MAX3222IDWR in existing designs?

A: Yes. Both parts implement identical RS232 2/2 transceiver functionality with matching pin configurations, package dimensions, and electrical operating ranges. No circuit modifications are required for substitution.

Q: What is the significance of the different data rate specifications?

A: The MAX3222EIDWR supports 500kbps maximum data rate compared to 250kbps for the MAX3222IDWR. This represents enhanced performance capability. Applications operating at or below 250kbps will function identically with either part.

Q: Are there packaging differences between these parts?

A: The main part is supplied in Cut Tape (CT) packaging, while the substitute is supplied in Tape & Reel (TR) format. Both use identical 20-SOIC component packages. Packaging format affects procurement and assembly processes but not electrical or mechanical compatibility.

Q: Why is product status relevant for component selection?

A: The MAX3222IDWR is Last Time Buy, indicating discontinued production. The MAX3222EIDWR maintains Active status, ensuring continued availability for future production runs and design revisions.

Q: Are compliance certifications identical between these parts?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and commercial applications.