74ACT16541DL Equivalent & Substitute Parts

Part Overview

The 74ACT16541DL is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, designed for 2-element, 8-bit per element configurations with 3-state output capability. This component operates within a 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP surface mount package. The part carries a Last Time Buy product status, indicating it has been discontinued and is no longer in active production. Identifying equivalent substitute parts is essential for ongoing system maintenance, design revisions, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

74ACT16541DL

Texas InstrumentsIn Stock: 121074ACT16541DL Datasheet

Current PartRFQ

74ACT16541DLR

Texas InstrumentsIn Stock: 396674ACT16541DLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ACT16541DL is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 24mA, 24mA
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 48-BSSOP (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

The 74ACT16541DLR qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction lies in packaging format: the original part is supplied in Tube packaging, while the substitute is supplied in Tape & Reel (TR) format. Both parts share the same base product number (74ACT16541) and are manufactured by Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The 74ACT16541DLR is the manufacturer-recommended substitute for the 74ACT16541DL. Both parts maintain identical electrical and mechanical specifications, ensuring functional compatibility in circuit applications. The 74ACT16541DLR carries an Active product status, providing long-term availability and supply chain stability compared to the Last Time Buy status of the original part. Both components satisfy ROHS3 compliance and REACH unaffected requirements, meeting current regulatory standards for electronic component procurement. The substitution involves only a packaging format change from Tube to Tape & Reel (TR), which affects handling and assembly processes but not component performance or circuit functionality.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT16541DLR be used as a direct replacement for the 74ACT16541DL in existing designs?

A: Yes. The 74ACT16541DLR is electrically and mechanically identical to the 74ACT16541DL. Both parts feature the same logic type, element count, bit configuration, output type, current ratings, supply voltage range, operating temperature range, and 48-BSSOP package dimensions. The only difference is the packaging format (Tube versus Tape & Reel).

Q: What is the difference between Tube and Tape & Reel (TR) packaging?

A: Tube packaging supplies individual components in a plastic tube, typically used for lower-volume orders or manual assembly. Tape & Reel (TR) packaging supplies components on a continuous reel of tape, designed for automated pick-and-place assembly equipment. Both formats contain the same component with identical electrical performance.

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

A: No. Both the 74ACT16541DL and 74ACT16541DLR are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). They meet the same regulatory and environmental standards.

Q: Why is the 74ACT16541DL marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued this part number and will no longer manufacture it after existing inventory is depleted. The 74ACT16541DLR, with Active product status, represents the ongoing production alternative and should be selected for new designs and long-term procurement.

Q: Are the pin configurations identical between these parts?

A: Yes. Both parts use the 48-BSSOP package with identical pin assignments, ensuring direct PCB compatibility without layout modifications.