MAX231EPD Equivalent & Substitute Parts

Part Overview

The MAX231EPD is a 2/2 transceiver IC implementing full RS232 protocol functionality in a 14-pin DIP package. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing system support and new designs. The MAX231EPD provides bidirectional RS232 communication with dual drivers and dual receivers, operating across extended temperature ranges suitable for industrial applications.

Substiute Parts

MAX231EPD

Analog Devices Inc./Maxim IntegratedIn Stock: 2055MAX231EPD Datasheet

Current PartRFQ

MAX231EPD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1282MAX231EPD+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX231EPD is determined by strict equivalence across the following critical parameters:

• Protocol specification: RS232 full duplex
• Channel configuration: 2 drivers and 2 receivers
• Electrical characteristics: 500 mV receiver hysteresis, 120 Kbps data rate capability
• Supply voltage range: 5V, 7.5V ~ 13.2V
• Operating temperature range: -40°C ~ 85°C
• Package form factor: 14-DIP (0.300", 7.62mm)
• Mounting technology: Through Hole

The MAX231EPD+ meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The MAX231EPD+ is the direct parametric equivalent for the obsolete MAX231EPD. Both parts share identical electrical specifications, pin configuration, and package form factor, enabling direct substitution in existing designs.

The MAX231EPD+ offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the MAX231EPD+ achieves ROHS3 compliance, whereas the original MAX231EPD is non-compliant. For new designs or system refreshes, the MAX231EPD+ is the appropriate selection.

Both parts maintain REACH Unaffected status and EAR99 export classification. Packaging differs between the original (unspecified) and substitute (Tube), which may affect procurement and handling procedures but does not impact electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MAX231EPD+ directly replace the MAX231EPD in existing PCB designs?

A: Yes. The MAX231EPD+ is a parametric equivalent with identical pin configuration, package dimensions (14-DIP, 0.300" spacing), and electrical specifications. No PCB modifications are required.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active status indicates the MAX231EPD+ is in current production with guaranteed long-term availability. The obsolete MAX231EPD has reached end-of-life and is no longer manufactured.

Q: Does the RoHS3 compliance of the MAX231EPD+ affect compatibility?

A: No. RoHS3 compliance is a manufacturing and environmental standard that does not alter electrical performance or pin compatibility. It reflects improved environmental compliance in the substitute part.

Q: Are there differences in packaging that affect component handling?

A: The MAX231EPD+ is supplied in Tube packaging, whereas the original part packaging is unspecified. Tube packaging is standard for through-hole components and does not affect circuit performance or installation procedures.

Q: What supply voltage options are available for both parts?

A: Both the MAX231EPD and MAX231EPD+ support dual supply voltage configurations: 5V single supply or 7.5V to 13.2V dual supply operation.

Q: Is the 120 Kbps data rate limitation a constraint for modern RS232 applications?

A: The 120 Kbps specification reflects the transceiver's rated capability. Actual application data rates depend on system requirements and line characteristics. Verify application requirements against this specification during design phase.