74VHC373MTC Equivalent & Substitute Parts

Part Overview

The 74VHC373MTC is a D-Type Transparent Latch logic IC manufactured by onsemi, featuring an 8:8 circuit configuration with tri-state output capability in a 20-TSSOP package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The 74VHC373MTC operates across a 2V to 5.5V supply voltage range with a propagation delay of 5ns and supports output currents of 8mA in both high and low states. Substitute parts are necessary to maintain design functionality when the original part reaches end-of-life status.

Substiute Parts

74VHC373MTC

onsemiIn Stock: 78174VHC373MTC Datasheet

Current PartRFQ

MC74VHC373DTR2G

onsemiIn Stock: 35219MC74VHC373DTR2G Datasheet

DirectRFQ

74VHC573MTC

onsemiIn Stock: 276374VHC573MTC Datasheet

Parametric EquivalentRFQ

SN74AHC373PW

Texas InstrumentsIn Stock: 2949SN74AHC373PW Datasheet

DirectRFQ

SN74AHC373PWR

Texas InstrumentsIn Stock: 3372SN74AHC373PWR Datasheet

DirectRFQ

74AHC373PW,118

Nexperia USA Inc.In Stock: 100574AHC373PW,118 Datasheet

UpgradeRFQ

SN74AHC373DBR

Texas InstrumentsIn Stock: 4738SN74AHC373DBR Datasheet

SimilarRFQ

SN74AHC373DGVR

Texas InstrumentsIn Stock: 2960SN74AHC373DGVR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC373MTC is determined by the following critical parameters: logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (tri-state), supply voltage range (2V ~ 5.5V), output current capability (8mA minimum), and package compatibility. Parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Equivalents maintain identical electrical specifications and package type, differing only in product status or packaging format (tube vs. tape & reel). These parts are pin-compatible and functionally interchangeable without design modification.

Parametric Equivalents meet all critical electrical requirements but may have different base product numbers or slightly improved performance characteristics (lower propagation delay). These parts are functionally compatible within the same package family.

Similar Parts share the same logic function and electrical specifications but use alternative package types (20-SSOP, 20-TVSOP instead of 20-TSSOP). These require PCB layout verification for mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74VHC373DTR2G (onsemi) is the optimal direct substitute. It maintains identical electrical specifications to the 74VHC373MTC, operates within the same temperature range, and is currently in active production status with substantial inventory availability (35,200 pcs). The tape & reel packaging format is standard for production environments.

Secondary Recommendation: SN74AHC373PWR (Texas Instruments) is suitable for applications where improved propagation delay (1ns vs. 5ns) provides design margin. This part is active and widely available (3,289 pcs). The 74AHC series offers faster switching characteristics while maintaining full electrical compatibility.

Extended Temperature Option: 74AHC373PW,118 (Nexperia USA Inc.) extends the operating temperature range to -40°C ~ 125°C, accommodating high-temperature applications. This part is active with adequate inventory (990 pcs) and meets all RoHS3 compliance requirements.

Package Alternatives: SN74AHC373DBR (20-SSOP) and SN74AHC373DGVR (20-TVSOP) are functionally equivalent but require PCB layout verification due to different package footprints. These alternatives are suitable only when mechanical constraints prevent use of 20-TSSOP packages.

All recommended substitutes maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and REACH unaffected status, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can I use MC74VHC373DTR2G as a direct replacement for 74VHC373MTC without design changes?

A: Yes. MC74VHC373DTR2G is a direct electrical and functional equivalent with identical pin configuration, voltage specifications, output current ratings, and package type (20-TSSOP). The only difference is packaging format (tape & reel vs. tube) and slightly improved propagation delay (4.9ns vs. 5ns), which enhances performance.

Q: What is the difference between 74VHC373MTC and 74VHC573MTC?

A: Both parts share the same package type (20-TSSOP) and electrical specifications. The primary difference is the base product number designation (373 vs. 573), which reflects different internal circuit configurations. Both are functionally compatible as D-Type Transparent Latches with 8:8 configuration and tri-state output.

Q: Why do SN74AHC373 parts have significantly lower propagation delay (1ns vs. 5ns)?

A: The 74AHC series represents a different logic family technology from the 74VHC series. While both families meet the same functional requirements and voltage specifications, the 74AHC family offers faster switching performance. This faster delay is compatible with 74VHC applications and provides additional design margin.

Q: Can I use SN74AHC373DBR (20-SSOP package) instead of the 20-TSSOP package?

A: SN74AHC373DBR is electrically equivalent but uses a different package footprint (20-SSOP vs. 20-TSSOP). PCB layout and component placement must be verified for mechanical compatibility. The packages have different pin spacing and body dimensions, requiring layout redesign.

Q: Is 74AHC373PW,118 suitable for high-temperature applications?

A: Yes. 74AHC373PW,118 operates across -40°C ~ 125°C, extending the upper temperature limit by 40°C compared to standard 74VHC and 74AHC variants. This part is suitable for automotive and industrial applications requiring extended temperature range operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, ensuring regulatory continuity and environmental compliance across all recommended alternatives.