SN74ALS996-1NT Equivalent & Substitute Parts

Part Overview

The SN74ALS996-1NT is a D-Type Transparent Latch IC with 1 channel, 8:8 configuration, and tri-state output capability. Manufactured by Texas Instruments in the 74ALS logic series, this component is classified as obsolete. The through-hole 24-DIP packaging and legacy product status necessitate identification of functionally equivalent alternatives for new designs and production continuity.

Substiute Parts

SN74ALS996-1NT

Texas InstrumentsIn Stock: 1143SN74ALS996-1NT Datasheet

Current PartRFQ

SN74ALS996DWR

Texas InstrumentsIn Stock: 5663SN74ALS996DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ALS996-1NT is determined by functional 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, propagation delay, output current)
• Operating temperature range
• Base product number (74ALS996)

The SN74ALS996DWR qualifies as a direct functional substitute based on identical electrical characteristics and logic configuration. The primary difference is packaging format: the original uses through-hole 24-DIP mounting, while the substitute employs surface-mount 24-SOIC packaging. Both maintain the same electrical performance and are derived from the same base product number.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS996DWR is the direct functional equivalent for the obsolete SN74ALS996-1NT. Both components maintain identical electrical performance and logic specifications. Selection between them depends on board design requirements:

For through-hole PCB designs, the SN74ALS996-1NT remains available in current inventory. For new designs or surface-mount implementations, the SN74ALS996DWR is the active product offering from Texas Instruments and is recommended for long-term supply continuity.

Both parts comply with ROHS3 and REACH requirements, ensuring regulatory compliance for industrial and commercial applications. The active product status of the SN74ALS996DWR provides superior availability and supply chain stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS996DWR directly replace the SN74ALS996-1NT in existing designs?

A: Electrically and functionally, yes. Both parts are identical in logic operation, timing, and electrical characteristics. However, the packaging difference (24-DIP through-hole versus 24-SOIC surface-mount) requires PCB redesign or adapter solutions for direct board-level substitution.

Q: What is the primary difference between these two parts?

A: The SN74ALS996-1NT uses through-hole 24-DIP packaging for traditional PCB assembly, while the SN74ALS996DWR uses surface-mount 24-SOIC packaging for automated assembly processes. All electrical specifications remain identical.

Q: Why is the SN74ALS996-1NT classified as obsolete?

A: The original part is obsolete due to industry transition from through-hole to surface-mount technology. The SN74ALS996DWR represents the current active product line for this logic function.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 and REACH compliance status, ensuring regulatory equivalence for applications requiring environmental and hazardous substance certifications.

Q: What packaging format is used for production quantities?

A: The SN74ALS996-1NT is supplied in tube packaging, while the SN74ALS996DWR is supplied in Tape & Reel (TR) format, which is standard for automated surface-mount assembly operations.