SN74ALVTH16827DL Equivalent & Substitute Parts

Part Overview

The SN74ALVTH16827DL is a non-inverting buffer IC manufactured by Texas Instruments, designed for logic signal buffering applications. This device features 2 elements with 10 bits per element and 3-state output capability, housed in a 56-SSOP surface mount package. The part operates across dual voltage supply ranges (2.3V–2.7V and 3V–3.6V) and is rated for industrial temperature ranges (-40°C to 85°C).

The SN74ALVTH16827DL is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing production, maintenance, and system redesign requirements where this legacy part is no longer readily available through standard distribution channels.

Substiute Parts

SN74ALVTH16827DL

Texas InstrumentsIn Stock: 931SN74ALVTH16827DL Datasheet

Current PartRFQ

SN74ALVCH16827DLR

Texas InstrumentsIn Stock: 2551SN74ALVCH16827DLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74ALVTH16827DL is determined by the following critical parameters:

• Logic Function: Buffer, Non-Inverting with identical element and bit configuration (2 elements, 10 bits per element)
• Output Architecture: 3-State output capability
• Package Compatibility: 56-BSSOP surface mount package with matching physical dimensions
• Voltage Supply Range: Compatibility within the operating voltage envelope
• Operating Temperature Range: Support for -40°C to 85°C industrial temperature specification
• Output Current Specifications: Sufficient drive capability for system requirements
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The SN74ALVCH16827DLR qualifies as a manufacturer-recommended substitute based on matching logic function, output type, package form factor, and regulatory compliance status. Both parts share the same functional architecture and physical footprint, enabling direct substitution in compatible applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SN74ALVTH16827DL and SN74ALVCH16827DLR are classified as obsolete products. The SN74ALVCH16827DLR is designated as the manufacturer-recommended substitute and carries superior inventory availability (2474 units versus 836 units for the original part).

Selection between these parts should be based on:

• Voltage Supply Compatibility: The SN74ALVCH16827DLR supports an extended lower voltage threshold (1.65V minimum) compared to the SN74ALVTH16827DL (2.3V minimum). Systems operating exclusively within the 2.3V–3.6V range are compatible with both parts.
• Output Current Specifications: The SN74ALVCH16827DLR provides uniform output current (24mA high and low), whereas the SN74ALVTH16827DL offers asymmetrical current ratings. Applications requiring the specific current profile of the original part should be evaluated against the substitute's capabilities.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, suitable for regulated manufacturing environments.
• Physical Footprint: Identical 56-BSSOP package dimensions enable direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALVCH16827DLR be used as a direct replacement for the SN74ALVTH16827DL?

A: Yes, the SN74ALVCH16827DLR is the manufacturer-recommended substitute. Both parts share identical logic function, output architecture, and package form factor. The substitute supports an extended voltage supply range and provides uniform output current specifications.

Q: What are the key differences between these two parts?

A: The primary differences are voltage supply range (SN74ALVCH16827DLR: 1.65V–3.6V versus SN74ALVTH16827DL: 2.3V–2.7V, 3V–3.6V) and output current characteristics (SN74ALVCH16827DLR: 24mA uniform versus SN74ALVTH16827DL: asymmetrical 8mA/24mA and 32mA/64mA). Both maintain identical operating temperature range and package specifications.

Q: Are there any PCB layout modifications required when substituting the SN74ALVCH16827DLR?

A: No. Both parts use the identical 56-BSSOP package with matching physical dimensions (0.295", 7.50mm width). PCB footprints, trace routing, and component placement remain unchanged.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the SN74ALVTH16827DL and SN74ALVCH16827DLR are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing and distribution.

Q: Which part should be selected for new designs?

A: Both parts are classified as obsolete. For new designs, consultation with Texas Instruments is recommended to identify current-generation buffer IC alternatives that provide equivalent or enhanced functionality with active product status and extended lifecycle support.