74ACT16827DLR Equivalent & Substitute Parts

Part Overview

The 74ACT16827DLR is a Buffer, Non-Inverting logic IC manufactured by Texas Instruments, featuring 2 elements with 10 bits per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 56-BSSOP surface mount package. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

74ACT16827DLR

Texas InstrumentsIn Stock: 105174ACT16827DLR Datasheet

Current PartRFQ

74ACT16825DLR

Texas InstrumentsIn Stock: 110574ACT16825DLR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ACT16827DLR is determined by the following critical parameters:

Mandatory Matching Parameters:

• Logic Type: Buffer, Non-Inverting
• Output Type: 3-State
• Number of Elements: 2
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Output High, Low: 24mA, 24mA
• Package / Case: 56-BSSOP (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C (TA)

Allowable Variation:

• Number of Bits per Element: The 74ACT16827DLR operates with 10 bits per element. Substitute parts with reduced bit capacity (9 bits per element) are functionally compatible when system design accommodates the reduced data width.

The 74ACT16825DLR meets all mandatory parameters and represents a valid substitute with a single-bit reduction in per-element capacity.

Parameter Comparison

Engineering Selection Recommendations

The 74ACT16825DLR is a valid substitute for the obsolete 74ACT16827DLR based on electrical and mechanical parameter alignment. Both components share identical supply voltage ranges, output current specifications, operating temperature ratings, and physical package dimensions. Both maintain ROHS3 compliance and MSL Level 1 classification.

The primary design consideration is the reduction from 10 bits per element to 9 bits per element in the substitute part. This difference requires circuit-level evaluation to confirm system compatibility. The 74ACT16825DLR's active product status provides superior long-term availability and supply chain continuity compared to the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT16825DLR directly replace the 74ACT16827DLR in existing designs?

A: Direct replacement is possible from an electrical and mechanical standpoint. Both parts operate at identical supply voltages (4.5V ~ 5.5V), deliver equivalent output current (24mA), and use the same 56-BSSOP package. The 9-bit versus 10-bit per element difference requires circuit design verification to confirm system functionality.

Q: What is the significance of the bit-per-element difference?

A: The 74ACT16827DLR buffers 10 data bits per element across 2 elements (20 total bits), while the 74ACT16825DLR buffers 9 data bits per element (18 total bits). System designs must accommodate this 2-bit reduction in total buffering capacity.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 56-BSSOP package with 0.295" width and 7.50mm dimensions. PCB footprints and mounting procedures are identical.

Q: What is the advantage of using the 74ACT16825DLR?

A: The 74ACT16825DLR maintains active product status, ensuring ongoing manufacturing and availability. The obsolete 74ACT16827DLR faces potential supply discontinuation.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified as MSL Level 1 (unlimited moisture sensitivity protection).