MAX248C/D Equivalent & Substitute Parts

Part Overview

The MAX248C/D is an 8/8 transceiver full RS232 die manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a complete RS232 interface solution with 8 drivers and 8 receivers in die form. The product is currently obsolete, making identification of suitable alternatives essential for ongoing system support, redesigns, or component procurement where die-level packaging is not feasible or preferred.

Substiute Parts

MAX248C/D

Analog Devices Inc./Maxim IntegratedIn Stock: 705MAX248C/D Datasheet

Current PartRFQ

MAX248EQH+D

Analog Devices Inc./Maxim IntegratedIn Stock: 1429MAX248EQH+D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX248C/D is determined by the following critical parameters that must remain consistent:

• Functional equivalence: 8/8 transceiver configuration with full RS232 protocol support
• Electrical specifications: 120 Kbps data rate, 500 mV receiver hysteresis, supply voltage compatibility
• Interface compatibility: Full duplex operation
• Regulatory compliance: ROHS3 compliance and REACH unaffected status

The MAX248EQH+D qualifies as a manufacturer-recommended substitute because it maintains identical functional specifications (8/8 transceiver, RS232 protocol, 120 Kbps data rate, 500 mV hysteresis, full duplex) while offering the component in a packaged form (44-PLCC) rather than die form. The primary difference is packaging and operating temperature range expansion, which does not affect electrical substitutability for equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

The MAX248EQH+D is the manufacturer-recommended substitute for the obsolete MAX248C/D. Both components maintain identical electrical and functional specifications for RS232 transceiver operation. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Key considerations for selection:

• Supply voltage range: The MAX248EQH+D operates within a narrower supply voltage window (4.75V ~ 5.25V) compared to the original part (4.5V ~ 5.5V). Verify that system power supply specifications fall within the substitute's operating range.
• Operating temperature: The substitute supports an expanded temperature range (-40°C ~ 85°C) compared to the original (0°C ~ 70°C), providing greater flexibility for extended temperature applications.
• Packaging transition: The substitute is supplied in 44-PLCC package form rather than die form. System redesign or integration approach may be required if die-level packaging was critical to the original application.
• Regulatory compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the MAX248EQH+D directly replace the MAX248C/D in all applications?

A: The MAX248EQH+D is electrically and functionally equivalent for RS232 transceiver operation. However, the packaging difference (44-PLCC vs. die) requires system-level integration changes. Verify that your application can accommodate the packaged form factor and that supply voltage specifications align with the substitute's 4.75V ~ 5.25V operating range.

Q: What is the primary difference between these two parts?

A: The MAX248C/D is supplied as a bare die, while the MAX248EQH+D is packaged in a 44-PLCC (J-Lead) surface mount package. Both maintain identical electrical specifications for 8/8 RS232 transceiver functionality, data rate, and signal characteristics.

Q: Why is the MAX248C/D obsolete?

A: The MAX248C/D has been discontinued by the manufacturer. The MAX248EQH+D represents the active production alternative from Analog Devices Inc./Maxim Integrated for continued system support and new designs.

Q: Are there supply voltage compatibility concerns?

A: The substitute part operates within 4.75V ~ 5.25V, which is narrower than the original 4.5V ~ 5.5V range. Confirm that your system power supply specifications fall within the substitute's operating window to ensure reliable operation.

Q: What is the moisture sensitivity difference?

A: The original part has MSL 1 (unlimited moisture sensitivity), while the substitute has MSL 3 (168 hours). This affects storage and handling requirements. The substitute requires controlled humidity storage conditions for periods exceeding 168 hours before soldering.