MM74HC164N Equivalent & Substitute Parts

Part Overview

The MM74HC164N is an 8-bit parallel-output shift register manufactured by onsemi, designed for serial-to-parallel data conversion in digital logic applications. This component features push-pull output configuration and operates across a 2V to 6V supply voltage range with a standard 14-DIP through-hole package.

The MM74HC164N is classified as obsolete. Identifying functionally equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this shift register architecture.

Substiute Parts

MM74HC164N

onsemiIn Stock: 3453MM74HC164N Datasheet

Current PartRFQ

SN74HC164N

Texas InstrumentsIn Stock: 13674SN74HC164N Datasheet

DirectRFQ

CD74HC164E

Texas InstrumentsIn Stock: 2001CD74HC164E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MM74HC164N is determined by strict alignment with the following electrical and mechanical parameters:

• Logic Type: Shift Register (8-bit, single element)
• Function: Serial to Parallel conversion
• Output Type: Push-Pull configuration
• Supply Voltage Range: 2V ~ 6V minimum compatibility
• Package: 14-DIP (0.300", 7.62mm) through-hole mounting
• Base Product Number: 74HC164 series

Substitute parts must maintain identical functional architecture, pinout compatibility, and physical package specifications. Operating temperature range and product status variations do not affect functional substitution eligibility, provided all electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both SN74HC164N and CD74HC164E are functionally equivalent substitutes for the MM74HC164N based on matching electrical specifications, logic architecture, and physical packaging.

SN74HC164N (Texas Instruments) is classified as active product status with ROHS3 compliance and extended operating temperature range (-40°C ~ 125°C), providing enhanced long-term supply chain availability and regulatory alignment for new designs.

CD74HC164E (Texas Instruments) is classified as active product status with ROHS3 compliance and extended operating temperature range (-55°C ~ 125°C), offering the widest temperature specification among available substitutes.

Both substitute parts maintain REACH Unaffected status consistent with the original MM74HC164N. Selection between substitutes should be based on supply availability, packaging preferences (tube packaging available for both), and specific application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74HC164N or CD74HC164E be used as direct replacements for MM74HC164N?

A: Yes. Both parts are functionally equivalent based on matching logic type, bit configuration, serial-to-parallel function, push-pull output, supply voltage range (2V ~ 6V), and 14-DIP package specifications. Pinout and electrical characteristics are identical.

Q: What is the difference between SN74HC164N and CD74HC164E?

A: Both are Texas Instruments 74HC164 shift registers with identical functional specifications. The primary difference is operating temperature range: SN74HC164N operates -40°C ~ 125°C, while CD74HC164E operates -55°C ~ 125°C. CD74HC164E provides extended low-temperature performance for applications requiring wider temperature specifications.

Q: Why is MM74HC164N listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by onsemi. Active substitute parts from other manufacturers (Texas Instruments) provide equivalent functionality and ensure continued design support and supply availability.

Q: Are there package or pinout differences between these parts?

A: No. All three parts use identical 14-DIP (0.300", 7.62mm) through-hole packages with matching pinout configurations. Direct board-level substitution is supported without layout modifications.

Q: Do the substitute parts meet current regulatory requirements?

A: Yes. Both SN74HC164N and CD74HC164E are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards. The original MM74HC164N maintains REACH Unaffected status.

Q: What supply voltage range do these parts support?

A: All three parts operate across 2V ~ 6V supply voltage range, ensuring compatibility with standard logic supply configurations.