SN74ALVC245RGYRG4 Equivalent & Substitute Parts

Part Overview

The SN74ALVC245RGYRG4 is a non-inverting transceiver IC manufactured by Texas Instruments, designed for 8-bit data bus switching applications. This device operates across a supply voltage range of 1.65V to 3.6V and features 3-state output capability, making it suitable for low-voltage digital logic systems. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure supply chain availability.

Substiute Parts

SN74ALVC245RGYRG4

Texas InstrumentsIn Stock: 1027SN74ALVC245RGYRG4 Datasheet

Current PartRFQ

74ALVC245BQ,115

Nexperia USA Inc.In Stock: 416774ALVC245BQ,115 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74ALVC245RGYRG4 is determined by strict equivalence across the following critical parameters:

• Logic Function: Non-inverting transceiver with 1 element, 8 bits per element
• Output Configuration: 3-state output capability
• Electrical Specifications: Output current (24mA high/low), supply voltage range (1.65V ~ 3.6V), operating temperature (-40°C ~ 85°C)
• Physical Form Factor: Surface mount package with 20-pin configuration
• Compliance: ROHS3 compliance and EAR99 classification

The identified substitute part 74ALVC245BQ,115 from Nexperia USA Inc. maintains functional and electrical equivalence across all specified parameters. The primary distinction lies in package geometry (20-DHVQFN versus 20-VQFN) and product status (active versus discontinued), along with improved moisture sensitivity rating.

Parameter Comparison

Engineering Selection Recommendations

The 74ALVC245BQ,115 from Nexperia USA Inc. is the qualified substitute for the discontinued SN74ALVC245RGYRG4. Both parts maintain identical electrical specifications and functional performance across all critical parameters. The substitute part offers the following advantages:

• Active Product Status: Currently in production and available through active distribution channels, ensuring long-term supply chain reliability
• Improved Moisture Sensitivity: MSL rating of 1 (Unlimited) versus MSL 2 (1 Year) provides extended shelf life and reduced handling constraints
• Compliance Equivalence: Both parts maintain ROHS3 compliance and EAR99 classification, ensuring regulatory alignment

The primary consideration for implementation is package geometry. The substitute part uses a 20-DHVQFN (4.5x2.5mm) package versus the original 20-VQFN (4.6x4.5mm) package. PCB layout and footprint verification is required prior to design implementation to confirm mechanical compatibility with existing board designs.

Frequently Asked Questions (FAQ)

Q: Are the SN74ALVC245RGYRG4 and 74ALVC245BQ,115 pin-compatible?

A: Both parts are 20-pin devices with identical pin assignments and electrical characteristics. Pin compatibility is confirmed. However, the physical package dimensions differ (4.6x4.5mm versus 4.5x2.5mm), requiring PCB footprint verification.

Q: Can the 74ALVC245BQ,115 be used as a direct replacement in existing designs?

A: Electrical and functional compatibility is confirmed. PCB layout modification may be necessary due to different package dimensions. Verify footprint compatibility with your current board design before implementation.

Q: What is the significance of the MSL rating difference?

A: The substitute part has an MSL rating of 1 (Unlimited) compared to MSL 2 (1 Year) for the original part. This indicates superior moisture resistance and extended shelf life, reducing handling and storage constraints during manufacturing and assembly.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the SN74ALVC245RGYRG4 and 74ALVC245BQ,115 are ROHS3 compliant and classified as EAR99, meeting current regulatory requirements for electronic component distribution and use.

Q: What is the availability status of each part?

A: The SN74ALVC245RGYRG4 is discontinued at DiGi Electronics. The 74ALVC245BQ,115 is an active product with current inventory availability, making it the recommended choice for new designs and ongoing production requirements.