SN74LS674DWG4 Equivalent & Substitute Parts

Part Overview

The SN74LS674DWG4 is a 16-bit parallel-to-serial shift register manufactured by Texas Instruments in the 74LS logic family. This component features tri-state output configuration and operates within a 4.75V to 5.25V supply voltage range. The device is packaged in a 24-SOIC surface mount package.

The SN74LS674DWG4 has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

SN74LS674DWG4

Texas InstrumentsIn Stock: 967SN74LS674DWG4 Datasheet

Current PartRFQ

SN74LS674DW

Texas InstrumentsIn Stock: 987SN74LS674DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS674DWG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: Shift Register
• Number of Bits per Element: 16 Bit
• Function: Parallel to Serial
• Output Type: Tri-State
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 24-SOIC
• Mounting Type: Surface Mount
• Series: 74LS

The SN74LS674DW qualifies as a direct substitute based on identical electrical specifications, package configuration, and functional characteristics. The primary distinction is product status: the SN74LS674DW remains active in production, whereas the SN74LS674DWG4 is discontinued.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS674DW is the recommended substitute for the discontinued SN74LS674DWG4. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The SN74LS674DW is currently in active production status, ensuring availability for new designs and replacement applications.

Both parts carry ROHS3 compliance and MSL Level 1 rating, meeting environmental and moisture sensitivity requirements. The active status of the SN74LS674DW provides supply chain continuity and eliminates obsolescence risk associated with the discontinued SN74LS674DWG4.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS674DW directly replace the SN74LS674DWG4 in existing designs?

A: Yes. The SN74LS674DW is a direct functional and electrical equivalent. Both components share identical pin configurations, electrical characteristics, and package specifications. No circuit modifications are required.

Q: Are there differences in the 24-SOIC package between these parts?

A: No. Both parts use the identical 24-SOIC package with 0.295" width (7.50mm). PCB footprints and assembly processes remain unchanged.

Q: What is the significance of the product status difference?

A: The SN74LS674DWG4 is discontinued at DiGi Electronics, meaning it is no longer in active production. The SN74LS674DW remains in active production, ensuring long-term availability and supply chain reliability.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74LS674DWG4 and SN74LS674DW are ROHS3 compliant with MSL Level 1 rating. Compliance certifications are identical.

Q: Are there any electrical parameter differences between these parts?

A: No. Supply voltage range (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), logic type, bit configuration, and output type are identical across both components.