74LVC32ADR2G Equivalent & Substitute Parts

Part Overview

The 74LVC32ADR2G is a 4-channel 2-input OR gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. The 74LVC series operates across a supply voltage range of 1.2V to 3.6V, supporting low-voltage digital logic applications with moderate output drive capability.

Substiute Parts

74LVC32ADR2G

onsemiIn Stock: 110374LVC32ADR2G Datasheet

Current PartRFQ

MC74LCX32DR2G

onsemiIn Stock: 3406MC74LCX32DR2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC32ADR2G is determined by the following critical parameters:

• Logic Function: 4-channel 2-input OR gate configuration
• Package Compatibility: 14-SOIC surface mount form factor
• Supply Voltage Range: Minimum 1.2V operation capability
• Output Drive: 24mA source and sink current
• Propagation Delay: Maximum 5ns at 3.3V with 50pF load
• Temperature Range: -40°C to 125°C operation
• Compliance: ROHS3 certification and REACH unaffected status

The MC74LCX32DR2G qualifies as a direct substitute based on matching logic function, package type, output drive specifications, and compliance certifications. However, the supply voltage range differs, with the MC74LCX32DR2G operating from 2V to 3.6V, and the maximum operating temperature is limited to 85°C.

Parameter Comparison

Engineering Selection Recommendations

The MC74LCX32DR2G is an active production substitute for the obsolete 74LVC32ADR2G. Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy support applications.

Selection between these parts depends on application voltage and temperature requirements. The 74LVC32ADR2G supports operation down to 1.2V supply voltage and up to 125°C, making it suitable for extended temperature and low-voltage applications. The MC74LCX32DR2G, with active product status and lower quiescent current (10 µA versus 40 µA), is preferred for new designs where supply voltage remains at or above 2V and operating temperature does not exceed 85°C.

Both devices share identical output drive capability (24mA), package form factor, and logic configuration, ensuring direct functional replacement within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the MC74LCX32DR2G replace the 74LVC32ADR2G in all applications?

A: Direct replacement is possible only when the application supply voltage is 2V or higher and the maximum operating temperature does not exceed 85°C. Applications requiring 1.2V operation or temperatures above 85°C require the original 74LVC32ADR2G or alternative parts supporting these extended specifications.

Q: What is the difference between the 74LVC and 74LCX series?

A: The 74LVC series supports a wider supply voltage range (1.2V to 3.6V) and extended temperature operation (-40°C to 125°C). The 74LCX series operates from 2V to 3.6V with a maximum temperature of 85°C but offers lower quiescent current consumption (10 µA versus 40 µA).

Q: Are the package dimensions identical between these parts?

A: Yes. Both the 74LVC32ADR2G and MC74LCX32DR2G use the 14-SOIC package with identical dimensions of 0.154 inches (3.90mm width), ensuring direct PCB compatibility without layout modifications.

Q: Do both parts meet current compliance requirements?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.

Q: What is the propagation delay difference between these parts?

A: At 3.3V supply with a 50pF load, the 74LVC32ADR2G has a maximum propagation delay of 5ns, while the MC74LCX32DR2G has a maximum of 5.5ns. This 0.5ns difference is negligible for most digital logic applications.