74ABT373APW,112 Equivalent & Substitute Parts

Part Overview

The 74ABT373APW,112 is a D-Type Transparent Latch logic IC manufactured by NXP USA Inc., featuring an 8:8 circuit configuration with tri-state output capability. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement continuity. The part operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-TSSOP surface mount package.

Substiute Parts

74ABT373APW,112

NXP USA Inc.In Stock: 114374ABT373APW,112 Datasheet

Current PartRFQ

SN74ABT373DBR

Texas InstrumentsIn Stock: 2554SN74ABT373DBR Datasheet

MFR RecommendedRFQ

SN74ABT373PW

Texas InstrumentsIn Stock: 1760SN74ABT373PW Datasheet

MFR RecommendedRFQ

SN74ABT373PWR

Texas InstrumentsIn Stock: 2069SN74ABT373PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ABT373APW,112 is determined by the following critical parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage - Supply: 4.5V ~ 5.5V
• Independent Circuits: 1
• Operating Temperature: -40°C ~ 85°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain functional equivalence across these core parameters. Variations in propagation delay time (3.6ns vs. 4.6ns) and package form factor (20-TSSOP vs. 20-SSOP) represent secondary considerations that do not affect functional substitution within standard logic circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three Texas Instruments substitute parts (SN74ABT373DBR, SN74ABT373PW, SN74ABT373PWR) maintain active product status, ensuring long-term availability and manufacturing support. Each part carries ROHS3 compliance and MSL Level 1 certification, meeting current environmental and reliability standards.

Selection between substitute options should be based on packaging requirements and procurement format:

• SN74ABT373PW: Recommended for applications requiring 20-TSSOP package form factor with tube packaging format.
• SN74ABT373PWR: Recommended for applications requiring 20-TSSOP package form factor with tape and reel packaging format.
• SN74ABT373DBR: Recommended for applications where 20-SSOP package form factor is acceptable, with tape and reel packaging format.

The propagation delay differential (3.6ns vs. 4.6ns) is within acceptable tolerance for standard logic circuit applications and does not constitute a functional limitation.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT373DBR be used as a direct replacement for 74ABT373APW,112?

A: SN74ABT373DBR is functionally equivalent across all critical parameters. However, the package form factor differs (20-SSOP vs. 20-TSSOP). PCB layout modification is required if the original design was optimized for 20-TSSOP dimensions.

Q: What is the significance of the propagation delay difference between 3.6ns and 4.6ns?

A: The 1.0ns difference represents a 28% increase in propagation delay. For most standard logic applications operating at frequencies below 100 MHz, this difference is negligible. Applications with timing-critical requirements should evaluate system-level impact.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 74ABT373APW,112 and all three substitute parts (SN74ABT373DBR, SN74ABT373PW, SN74ABT373PWR) are ROHS3 compliant with MSL Level 1 rating.

Q: What is the difference between tube and tape & reel packaging?

A: Tube packaging is suitable for lower-volume applications and manual assembly. Tape & reel packaging is optimized for automated pick-and-place assembly processes. Functional performance is identical; selection depends on assembly methodology.

Q: Why is the original 74ABT373APW,112 marked as obsolete?

A: Obsolete status indicates NXP has discontinued manufacturing. Texas Instruments continues active production of functionally equivalent 74ABT373 variants, ensuring design continuity and supply chain stability.