SN74HC174NG4 Equivalent & Substitute Parts

Part Overview

The SN74HC174NG4 is a logic integrated circuit functioning as a Flip Flop 1 Element D-Type 6 Bit Positive Edge device in a 16-DIP (0.300", 7.62mm) through-hole package. This component is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates across a 2V to 6V supply voltage range with a maximum propagation delay of 27ns at 6V with 50pF load, suitable for digital logic applications requiring edge-triggered flip-flop functionality.

Substiute Parts

SN74HC174NG4

Texas InstrumentsIn Stock: 1173SN74HC174NG4 Datasheet

Current PartRFQ

SN74HC174N

Texas InstrumentsIn Stock: 2756SN74HC174N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74HC174NG4 is determined by strict equivalence across the following critical parameters:

• Logic Function: D-Type flip-flop with 1 element and 6 bits per element
• Electrical Performance: 50 MHz clock frequency, 27ns maximum propagation delay at 6V with 50pF load
• Trigger Characteristics: Positive edge trigger with non-inverted output
• Power Supply Range: 2V to 6V operation
• Output Drive Capability: 5.2mA source and sink current
• Package Specification: 16-DIP (0.300", 7.62mm) through-hole mounting
• Compliance Standards: ROHS3 compliant, REACH unaffected

The SN74HC174N qualifies as a direct substitute based on identical electrical specifications, functional characteristics, and package form factor. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SN74HC174N is the direct equivalent substitute for the SN74HC174NG4. Both parts are manufactured by Texas Instruments within the 74HC logic series and maintain identical electrical specifications, functional characteristics, and physical package dimensions. The SN74HC174N holds active product status, ensuring continued availability and supply chain support compared to the discontinued SN74HC174NG4. Both parts meet ROHS3 compliance and REACH requirements, making them suitable for regulated applications. Selection of the SN74HC174N eliminates obsolescence risk while maintaining full functional and electrical compatibility with designs originally specified for the SN74HC174NG4.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC174N directly replace the SN74HC174NG4 in existing designs?

A: Yes. Both parts are electrically and functionally identical with matching pin configurations, electrical performance specifications, and 16-DIP package dimensions. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The SN74HC174NG4 is discontinued at DiGi Electronics. The SN74HC174N maintains active product status and identical specifications, providing continuity for ongoing production and design support.

Q: Are there any differences in compliance or certifications?

A: Both parts are ROHS3 compliant and REACH unaffected. The SN74HC174N carries standard MSL classification while the SN74HC174NG4 specifies MSL 1 (Unlimited). Both are suitable for standard manufacturing environments.

Q: Do the parts have identical pin assignments?

A: Yes. Both the SN74HC174NG4 and SN74HC174N use the 16-DIP (0.300", 7.62mm) through-hole package with identical pin configurations and functional assignments.

Q: What are the critical electrical parameters that define substitution compatibility?

A: Substitution is based on matching clock frequency (50 MHz), propagation delay (27ns @ 6V, 50pF), supply voltage range (2V ~ 6V), output drive current (5.2mA), and trigger characteristics (positive edge, non-inverted output).

Q: Is the packaging format identical between these parts?

A: Both parts are supplied in tube packaging within the 16-DIP (0.300", 7.62mm) through-hole form factor. No mechanical modifications to PCB layouts or assembly processes are required.