74AC16374DL Equivalent & Substitute Parts

Part Overview

The 74AC16374DL is a dual 8-bit D-type flip-flop logic integrated circuit manufactured by Texas Instruments in the 74AC series. This component functions as a standard edge-triggered storage element with tri-state, non-inverted outputs, designed for digital logic applications requiring synchronous data capture and buffering. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for systems currently utilizing this component.

Substiute Parts

74AC16374DL

Texas InstrumentsIn Stock: 123274AC16374DL Datasheet

Current PartRFQ

74AC16374DLR

Texas InstrumentsIn Stock: 158174AC16374DLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74AC16374DL is determined by strict equivalence across the following critical parameters:

• Logic Function: Dual 8-bit D-type flip-flop with identical element and bit configuration
• Output Configuration: Tri-state, non-inverted output topology
• Electrical Performance: Clock frequency of 100 MHz, propagation delay of 9.5 ns @ 5V/50pF, output current capability of 24 mA (both high and low states)
• Supply Voltage Range: 3V to 5.5V operation
• Package Specification: 48-BSSOP surface mount package with 0.295" width and 7.50mm pitch
• Environmental Compliance: ROHS3 compliance and MSL Level 1 rating
• Trigger Mechanism: Positive edge triggering

The substitute part 74AC16374DLR maintains identical electrical and functional specifications. The primary distinction is packaging format: the main part is supplied in Tube packaging, while the substitute is supplied in Cut Tape (CT) and Digi-Reel® (Tape & Reel) format. Both parts share the same base product number 74AC16374 and are manufactured by Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The 74AC16374DLR is a direct functional and electrical equivalent to the 74AC16374DL. Both parts are manufactured by Texas Instruments, share identical logic specifications, and meet the same environmental and compliance standards (ROHS3 and MSL Level 1).

The primary consideration for selection is product status and supply availability. The 74AC16374DL is designated Last Time Buy, indicating production discontinuation. The 74AC16374DLR maintains Active status with higher current inventory (1494 units versus 1145 units), providing superior long-term supply chain security.

Packaging format differs between the two parts: the main part is supplied in Tube format, while the substitute is supplied in Cut Tape and Digi-Reel format. This distinction affects handling, storage, and automated assembly processes but does not impact electrical performance or functional compatibility. Selection should be based on procurement workflow requirements and assembly equipment compatibility.

Both parts are ROHS3 compliant and carry MSL Level 1 rating, indicating unlimited shelf life under standard storage conditions. No additional environmental or compliance considerations differentiate these parts.

Frequently Asked Questions (FAQ)

Q: Can the 74AC16374DLR be used as a direct replacement for the 74AC16374DL in existing designs?

A: Yes. The 74AC16374DLR is electrically and functionally identical to the 74AC16374DL. Both parts share the same base product number, logic function, electrical specifications, and package dimensions. The only difference is packaging format (Tube versus Cut Tape/Digi-Reel), which does not affect circuit performance or PCB assembly compatibility.

Q: What is the significance of the packaging format difference between these parts?

A: Packaging format affects supply chain logistics and assembly processes. Tube packaging is typically used for manual assembly or lower-volume applications. Cut Tape and Digi-Reel formats are optimized for automated pick-and-place assembly systems. The choice depends on manufacturing workflow requirements, not electrical performance.

Q: Why is the 74AC16374DL marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. The 74AC16374DLR, which maintains Active status, represents the current production equivalent. For new designs or long-term supply requirements, the 74AC16374DLR is the recommended selection.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts operate at 100 MHz clock frequency, deliver 9.5 ns maximum propagation delay at 5V with 50pF load, and provide 24 mA output current capability. Supply voltage range, quiescent current, and all other electrical parameters are identical.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the 74AC16374DL and 74AC16374DLR are ROHS3 compliant and carry MSL Level 1 rating. They operate across the same temperature range (-40°C to 85°C) and meet identical regulatory requirements.

Q: What should be considered when transitioning from 74AC16374DL to 74AC16374DLR?

A: The primary consideration is assembly equipment compatibility with the new packaging format. If your manufacturing process uses automated tape-fed systems, the Digi-Reel format of the 74AC16374DLR is advantageous. If manual assembly or tube-based handling is required, procurement workflow may need adjustment. No circuit design changes are necessary.