74VHC164M Equivalent & Substitute Parts

Part Overview

The 74VHC164M is an 8-bit serial-to-parallel shift register manufactured by onsemi, housed in a 14-SOIC surface mount package. This component converts serial input data into parallel output across 8 bits, commonly used in data acquisition, display driving, and digital signal processing applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain identical electrical performance and package compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

74VHC164M

onsemiIn Stock: 93874VHC164M Datasheet

Current PartRFQ

SN74LV164AD

Texas InstrumentsIn Stock: 3283SN74LV164AD Datasheet

DirectRFQ

74AHC164D,118

NXP SemiconductorsIn Stock: 24456774AHC164D,118 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC164M is determined by strict equivalence across the following critical parameters:

• Logic Function: Serial-to-parallel shift register with 8-bit capacity
• Electrical Performance: Push-pull output configuration with 2V to 5.5V supply voltage range
• Operating Conditions: -40°C to 85°C temperature range
• Physical Package: 14-SOIC surface mount package with 0.154" (3.90mm) width
• Compliance: ROHS3 compliance and MSL 1 rating

The 74VHC164M belongs to the 74-series logic family. Direct substitutes are identified from compatible logic families (74LV and 74AHC series) that maintain identical pin configuration, electrical specifications, and package dimensions. All substitute parts listed meet or exceed the original specifications without requiring circuit modifications.

Parameter Comparison

Engineering Selection Recommendations

SN74LV164AD (Texas Instruments): This substitute maintains full electrical and mechanical compatibility with the 74VHC164M. The 74LV series operates within the identical voltage and temperature specifications. Although discontinued at DiGi Electronics, this part remains available through alternative distribution channels and serves as a direct functional replacement. ROHS3 compliance and MSL 1 rating ensure equivalent environmental performance.

74AHC164D,118 (NXP Semiconductors): This part represents an active production alternative with identical electrical characteristics and package configuration. The 74AHC series provides equivalent performance across all specified parameters. Active product status ensures long-term availability and supply chain stability. This option is recommended for new designs and production runs requiring extended component lifecycle support.

Both substitutes are pin-compatible and require no circuit modifications. Selection between them depends on supply chain availability and production timeline requirements.

Frequently Asked Questions (FAQ)

Q: Can the SN74LV164AD directly replace the 74VHC164M without circuit modifications?

A: Yes. Both parts share identical pin configuration, voltage supply range (2V to 5.5V), operating temperature range (-40°C to 85°C), and 14-SOIC package dimensions. No circuit changes are required.

Q: What is the difference between the 74VHC, 74LV, and 74AHC logic families?

A: These are different manufacturer implementations of the same logic function. All three families provide 8-bit serial-to-parallel shift register functionality with push-pull outputs and identical electrical specifications for this application. The primary differences are manufacturer (onsemi, Texas Instruments, NXP) and product lifecycle status.

Q: Is the 74AHC164D,118 suitable for production use?

A: Yes. The 74AHC164D,118 maintains active product status with NXP Semiconductors, ensuring ongoing availability and supply chain reliability. It meets all ROHS3 and MSL requirements equivalent to the original part.

Q: Are there any package or pinout differences between these substitutes?

A: No. All three parts use the 14-SOIC package with 0.154" (3.90mm) width and identical pin assignments. They are mechanically and electrically interchangeable.

Q: What compliance certifications apply to these substitute parts?

A: All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original 74VHC164M specifications. REACH status is unaffected for all listed parts.