SN74ALVC16834ZQLR Equivalent & Substitute Parts

Part Overview

The SN74ALVC16834ZQLR is a Universal Bus Driver IC featuring 18-bit functionality in a 56-BGA Microstar Junior package (7x4.5mm). This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The part operates across a wide voltage range (1.65V to 3.6V) and maintains consistent output drive capability, making it suitable for low-voltage digital applications requiring robust bus driving functionality.

Substiute Parts

SN74ALVC16834ZQLR

Texas InstrumentsIn Stock: 835SN74ALVC16834ZQLR Datasheet

Current PartRFQ

SN74ALVC16835DGGR

Texas InstrumentsIn Stock: 2247SN74ALVC16835DGGR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ALVC16834ZQLR is determined by strict alignment of the following critical parameters:

• Logic Function: Universal Bus Driver with 18-bit configuration
• Electrical Specifications: Output drive current (24mA/24mA), supply voltage range (1.65V ~ 3.6V), operating temperature range (-40°C ~ 85°C)
• Manufacturer Series: Texas Instruments 74ALVC family
• Compliance Standards: ROHS3 compliance, REACH unaffected status, EAR99 classification

The primary substitute, SN74ALVC16835DGGR, maintains functional equivalence through identical electrical performance and logic configuration. The key distinction lies in packaging format: the substitute transitions from BGA to TSSOP, which affects board layout and assembly methodology but preserves electrical compatibility when proper design considerations are applied.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALVC16835DGGR serves as the direct functional equivalent to the obsolete SN74ALVC16834ZQLR. Both components maintain identical electrical performance specifications and regulatory compliance status (ROHS3 compliant, REACH unaffected, EAR99 classification).

The primary consideration for selection is packaging format. The main part utilizes a 56-BGA Microstar Junior package, while the substitute employs a 56-TFSOP configuration. This transition requires corresponding modifications to PCB layout, via placement, and assembly procedures. The substitute's active product status ensures long-term availability and manufacturing support, addressing the obsolescence constraint of the original component.

Both parts maintain equivalent moisture sensitivity levels and thermal operating ranges, supporting deployment across identical environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALVC16835DGGR directly replace the SN74ALVC16834ZQLR without design modifications?

A: Electrical functionality is fully compatible. However, the package transition from 56-BGA to 56-TFSOP requires PCB redesign, including footprint modification, trace routing adjustments, and assembly process changes. Pin-to-pin electrical compatibility exists, but physical layout cannot remain unchanged.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is determined by: identical logic function (Universal Bus Driver, 18-bit), matching output drive current (24mA/24mA), equivalent supply voltage range (1.65V ~ 3.6V), identical operating temperature range (-40°C ~ 85°C), and compliance with ROHS3 and REACH standards.

Q: Why is the SN74ALVC16835DGGR listed as active while the main part is obsolete?

A: The substitute represents the current production equivalent within the 74ALVC family. Texas Instruments maintains active manufacturing and distribution of the TSSOP variant, ensuring component availability for new designs and legacy system support.

Q: Are there electrical performance differences between the BGA and TFSOP packages?

A: No. Both packages contain identical die and electrical specifications. Package selection affects thermal dissipation characteristics and board integration methodology, but core electrical performance remains equivalent.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under EAR99. Moisture sensitivity level is 1 (unlimited) for both variants, indicating no special moisture control requirements during storage or handling.