MAX561C/D Equivalent & Substitute Parts

Part Overview

The MAX561C/D is a full-duplex RS232 transceiver die manufactured by Analog Devices Inc./Maxim Integrated. This component integrates 4 drivers and 5 receivers on a single die, designed for serial communication applications requiring RS232 protocol compliance. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

MAX561C/D

Analog Devices Inc./Maxim IntegratedIn Stock: 1150MAX561C/D Datasheet

Current PartRFQ

MAX561CAI+

Analog Devices Inc./Maxim IntegratedIn Stock: 2384MAX561CAI+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX561C/D is determined by the following critical parameters that must remain consistent:

• Protocol Compatibility: RS232 full-duplex transceiver functionality
• Driver/Receiver Configuration: 4 drivers and 5 receivers
• Electrical Characteristics: 300 mV receiver hysteresis, 116 Kbps data rate capability
• Supply Voltage: 3V to 3.6V operating range
• Temperature Range: 0°C to 70°C operation
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The MAX561CAI+ is identified as the manufacturer-recommended substitute. While this part maintains the same base product number (MAX561) and core electrical specifications, it differs in physical packaging format, transitioning from die form to a 28-SSOP surface-mount package. This packaging change enables integration into standard PCB assembly processes while preserving functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The MAX561CAI+ is the appropriate substitute for the obsolete MAX561C/D based on the following factors:

Product Status: The MAX561CAI+ maintains active product status with Analog Devices Inc./Maxim Integrated, ensuring continued availability and manufacturer support. The original MAX561C/D is obsolete and no longer recommended for new designs.

Compliance Alignment: Both parts maintain identical ROHS3 compliance and MSL Level 1 ratings, ensuring compatibility with current manufacturing and environmental standards.

Functional Equivalence: All critical electrical parameters—protocol, driver/receiver count, hysteresis, data rate, supply voltage, and operating temperature—are identical between the original and substitute parts.

Packaging Consideration: The transition from die form to 28-SSOP package format enables standard surface-mount assembly processes. This change does not affect electrical functionality but improves manufacturability and integration into modern PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the MAX561CAI+ directly replace the MAX561C/D in existing designs?

A: Electrical and functional compatibility is complete. The primary difference is packaging format: the original is a die, while the substitute is a 28-SSOP package. PCB layout and assembly processes must accommodate the 28-SSOP footprint.

Q: Are the RS232 protocol specifications identical between these parts?

A: Yes. Both parts implement full-duplex RS232 transceiver functionality with 4 drivers, 5 receivers, 300 mV receiver hysteresis, and 116 Kbps data rate capability.

Q: What is the significance of the product status change from obsolete to active?

A: The active status of the MAX561CAI+ indicates ongoing manufacturer support, availability from authorized distributors, and suitability for new design implementations. The obsolete status of the MAX561C/D indicates discontinuation and limited future availability.

Q: Are supply voltage and temperature operating ranges the same?

A: Yes. Both parts operate across 3V to 3.6V supply voltage and 0°C to 70°C temperature ranges.

Q: Does the 28-SSOP package affect electrical performance?

A: No. The package change is a physical form factor modification only. Electrical characteristics, signal integrity, and protocol compliance remain unchanged.