74VHC32N Equivalent & Substitute Parts

Part Overview

The 74VHC32N is a 4-channel 2-input OR gate logic IC manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. The 74VHC series operates across a 2V to 5.5V supply voltage range and is suitable for applications requiring standard logic gating functions in through-hole configurations.

Substiute Parts

74VHC32N

onsemiIn Stock: 469374VHC32N Datasheet

Current PartRFQ

SN74AHC32N

Texas InstrumentsIn Stock: 3009SN74AHC32N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74VHC32N is determined by the following critical parameters:

• Logic Function: Both parts must implement 4-channel 2-input OR gate functionality
• Supply Voltage Range: Minimum 2V to 5.5V compatibility required
• Output Drive Capability: 8mA output current (high and low) maintained
• Propagation Delay: 7.5ns maximum at 5V, 50pF load
• Quiescent Current: 2 µA maximum
• Package Compatibility: 14-DIP through-hole mounting with 0.300" (7.62mm) pitch

The SN74AHC32N from Texas Instruments meets all specified electrical and mechanical parameters, with identical logic configuration, supply voltage range, output drive capability, propagation delay, and quiescent current specifications. Both components utilize the same 14-DIP package footprint, enabling direct pin-compatible substitution.

Parameter Comparison

Engineering Selection Recommendations

The SN74AHC32N is a direct functional equivalent for the obsolete 74VHC32N. Selection between these parts should be based on the following factors:

Product Status: The 74VHC32N is obsolete, while the SN74AHC32N maintains active production status, ensuring long-term availability and supply chain stability.

Compliance & Certifications: The SN74AHC32N is RoHS3 compliant, meeting current environmental and regulatory requirements. Both components are REACH unaffected and carry EAR99 classification.

Operating Temperature Range: The SN74AHC32N supports -40°C to 125°C operation, extending the upper temperature limit by 40°C compared to the 74VHC32N (-40°C to 85°C). This provides additional thermal margin for applications operating in elevated temperature environments.

Packaging & Availability: Both components use identical 14-DIP through-hole packages. The SN74AHC32N is available in tube packaging with 2900 units in stock, supporting immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can the SN74AHC32N directly replace the 74VHC32N in existing designs?

A: Yes. Both components share identical pin configurations, package dimensions (14-DIP, 0.300" pitch), and all critical electrical parameters including supply voltage range, output drive capability, propagation delay, and quiescent current. Direct substitution is possible without circuit modification.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer (onsemi vs. Texas Instruments), product status (obsolete vs. active), and operating temperature range (85°C vs. 125°C maximum). The SN74AHC32N also includes RoHS3 compliance certification.

Q: Are there any input logic level differences?

A: The 74VHC32N specifies input logic levels as 0.5V (low) and 1.5V (high). The SN74AHC32N provides wider input logic level specifications (0.5V ~ 1.65V low, 1.5V ~ 3.85V high), which remain compatible with standard TTL and CMOS logic levels.

Q: Does the extended operating temperature range of the SN74AHC32N affect circuit performance?

A: No. The extended temperature range (to 125°C) represents an additional capability without degrading performance within the original 74VHC32N operating range (-40°C to 85°C). All electrical parameters remain identical across the overlapping temperature range.

Q: What packaging options are available for the SN74AHC32N?

A: The SN74AHC32N is supplied in tube packaging, standard for through-hole components. Both parts use the same 14-DIP package footprint, ensuring mechanical compatibility with existing PCB designs.