N74F164D,623 Equivalent & Substitute Parts

Part Overview

The N74F164D,623 is an 8-bit serial-to-parallel shift register manufactured by NXP USA Inc., housed in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The shift register converts serial input data into parallel output across 8 bits, with push-pull output configuration suitable for standard logic applications operating within the 4.5V to 5.5V supply range.

Substiute Parts

N74F164D,623

NXP USA Inc.In Stock: 828N74F164D,623 Datasheet

Current PartRFQ

MM74HCT164MX

onsemiIn Stock: 3548MM74HCT164MX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the N74F164D,623 is determined by strict equivalence across the following critical parameters:

• Logic Function: Serial-to-parallel shift register operation with 8-bit capacity
• Electrical Characteristics: Push-pull output configuration and 4.5V to 5.5V supply voltage compatibility
• Thermal Range: Operating temperature range of -40°C to 85°C
• Physical Form Factor: 14-SOIC package with 0.154" (3.90mm) width
• Surface Mount Compatibility: Identical mounting type and pin configuration
• Regulatory Compliance: ROHS3 compliance and MSL Level 1 rating

The MM74HCT164MX from onsemi meets all these criteria as a parametric equivalent. The primary distinction is product status: the N74F164D,623 is obsolete, while the MM74HCT164MX remains in active production, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The MM74HCT164MX is the direct parametric equivalent for the N74F164D,623. Selection of this substitute is justified by:

• Functional Equivalence: Identical shift register architecture with 8-bit serial-to-parallel conversion
• Electrical Compatibility: Matching supply voltage range (4.5V to 5.5V) and operating temperature specifications (-40°C to 85°C)
• Physical Interchangeability: Identical 14-SOIC package dimensions and surface mount configuration enable direct PCB replacement
• Regulatory Alignment: Both components maintain ROHS3 compliance and MSL Level 1 rating
• Supply Continuity: The MM74HCT164MX is in active production status, ensuring availability for current and future procurement cycles

Frequently Asked Questions (FAQ)

Q: Can the MM74HCT164MX directly replace the N74F164D,623 on existing PCBs?

A: Yes. Both components share identical package geometry (14-SOIC), pin configuration, and electrical operating parameters. No circuit modifications are required for direct substitution.

Q: What is the primary reason for substituting the N74F164D,623?

A: The N74F164D,623 is classified as obsolete. The MM74HCT164MX provides equivalent functionality with active production status, ensuring long-term supply chain reliability.

Q: Are there differences in logic family between the 74F and 74HCT series?

A: The 74F series represents fast TTL logic, while 74HCT represents high-speed CMOS with TTL-compatible inputs and outputs. Both families maintain the same electrical operating range (4.5V to 5.5V) and functional specifications for this shift register application.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the N74F164D,623 and MM74HCT164MX are ROHS3 compliant with MSL Level 1 rating, suitable for unrestricted moisture exposure during storage and handling.

Q: Is the 14-SOIC package identical between both parts?

A: Yes. Both components use the 14-SOIC package with 0.154" (3.90mm) width, ensuring mechanical and electrical compatibility on standard surface mount PCBs.