SN74AC373NG4 Equivalent & Substitute Parts

Part Overview

The SN74AC373NG4 is a D-Type Transparent Latch IC with 8:8 circuit configuration and tri-state output capability, manufactured by Texas Instruments in the 74AC logic series. This component is designed for digital logic applications requiring transparent latch functionality with high-speed propagation characteristics.

The SN74AC373NG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications utilizing this logic component.

Substiute Parts

SN74AC373NG4

Texas InstrumentsIn Stock: 901SN74AC373NG4 Datasheet

Current PartRFQ

SN74AC373N

Texas InstrumentsIn Stock: 3275SN74AC373N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74AC373NG4 is determined by strict equivalence across the following critical parameters:

• Logic type and circuit configuration (D-Type Transparent Latch, 8:8)
• Output type (Tri-State)
• Electrical specifications (voltage supply range, propagation delay, output current)
• Operating temperature range (-40°C ~ 85°C)
• Package and mounting type (20-DIP through-hole)
• Compliance certifications (RoHS3, REACH Unaffected)

The SN74AC373N meets all these criteria and serves as a direct functional equivalent. The primary distinction is product status and packaging format, with the substitute part currently in active production.

Parameter Comparison

Engineering Selection Recommendations

The SN74AC373N is the recommended substitute for the discontinued SN74AC373NG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The substitute part is currently in active production status, ensuring supply chain availability.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The 20-DIP through-hole package format remains consistent, allowing direct board-level replacement without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC373N directly replace the SN74AC373NG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage supply range, propagation delay, output current, operating temperature range, and package configuration. Direct substitution is supported without circuit modification.

Q: What is the difference between SN74AC373NG4 and SN74AC373N?

A: The primary difference is product status. The SN74AC373NG4 is discontinued at DiGi Electronics, while the SN74AC373N is in active production. The suffix designation reflects different packaging or distribution formats, but electrical performance and package type remain identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Regulatory certifications are equivalent across both part numbers.

Q: Is the 20-DIP package compatible with existing PCB designs?

A: Yes. Both the SN74AC373NG4 and SN74AC373N use the same 20-DIP (0.300", 7.62mm) through-hole package. PCB footprints and mounting requirements are identical, supporting direct component replacement.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by matching logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (Tri-State), voltage supply range (2V ~ 6V), propagation delay (7.5ns), output current (24mA/24mA), and operating temperature range (-40°C ~ 85°C).