SN74HC374NG4 Equivalent & Substitute Parts

Part Overview

The SN74HC374NG4 is a logic integrated circuit functioning as a D-Type flip-flop with 1 element and 8-bit capacity. This device features tri-state, non-inverted outputs and operates across a supply voltage range of 2V to 6V with a maximum clock frequency of 70 MHz. The SN74HC374NG4 is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production continuity.

Substiute Parts

SN74HC374NG4

Texas InstrumentsIn Stock: 912SN74HC374NG4 Datasheet

Current PartRFQ

SN74HC374N

Texas InstrumentsIn Stock: 3360SN74HC374N Datasheet

MFR RecommendedRFQ

SN74HC374AN

Texas InstrumentsIn Stock: 3111SN74HC374AN Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74HC374NG4 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Functional Parameters: Type (D-Type), Number of Elements (1), Number of Bits per Element (8), Output Type (Tri-State, Non-Inverted), Trigger Type (Positive Edge)
• Electrical Parameters: Clock Frequency (70 MHz), Voltage Supply Range (2V ~ 6V), Operating Temperature Range (-40°C ~ 85°C)
• Mechanical Parameters: Package Type (20-DIP), Mounting Type (Through Hole), Pin Configuration (20-PDIP)
• Compliance Parameters: RoHS Status (ROHS3 Compliant), REACH Status (REACH Unaffected)

Substitute parts must maintain identical functional specifications, electrical operating ranges, and physical package dimensions to ensure direct replacement capability in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

SN74HC374N (MFR Recommended Substitute): This part is the manufacturer-recommended alternative to the discontinued SN74HC374NG4. It maintains identical functional specifications, electrical parameters, and physical packaging. The SN74HC374N is currently in active production status with higher inventory availability (3260 Pcs). This part is ROHS3 compliant and REACH unaffected, meeting all regulatory requirements. The maximum propagation delay specification is 39 ns at 6V with 150 pF load, which is within acceptable tolerance for most applications requiring the original part's 31 ns specification at 50 pF load.

SN74HC374AN (Parametric Equivalent): This part provides identical electrical and functional performance to the original SN74HC374NG4, including the same 31 ns maximum propagation delay at 6V with 50 pF load. The SN74HC374AN is in active production with strong inventory availability (3020 Pcs). This part is ROHS3 compliant and REACH unaffected. Selection of this part is appropriate when propagation delay specifications at the 50 pF load condition are critical to circuit performance.

Both substitute parts are qualified for direct replacement based on functional equivalence, electrical compatibility, and mechanical interchangeability within the 20-DIP through-hole package format.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC374N be used as a direct replacement for the SN74HC374NG4?

A: Yes. The SN74HC374N is the manufacturer-recommended substitute. Both parts share identical functional specifications (D-Type flip-flop, 1 element, 8-bit, tri-state output), electrical operating ranges (2V to 6V supply, -40°C to 85°C operating temperature), and physical packaging (20-DIP through-hole). The primary difference is propagation delay specification under different load conditions, which does not affect functional compatibility in standard applications.

Q: What is the difference between SN74HC374N and SN74HC374AN?

A: Both parts are functionally equivalent and share identical core specifications. The SN74HC374AN matches the original SN74HC374NG4 propagation delay specification of 31 ns at 6V with 50 pF load, while the SN74HC374N specifies 39 ns at 6V with 150 pF load. Selection depends on whether your circuit design requires the tighter propagation delay specification.

Q: Are these substitute parts compatible with existing PCB designs for the SN74HC374NG4?

A: Yes. Both substitute parts use the identical 20-DIP (0.300", 7.62mm) through-hole package with the same pin configuration. No PCB modifications are required for substitution.

Q: Do the substitute parts meet the same compliance standards as the original part?

A: Yes. Both SN74HC374N and SN74HC374AN are ROHS3 compliant and REACH unaffected, matching the compliance status of the original SN74HC374NG4.

Q: Which substitute part should I select for new designs?

A: For new designs, either part is acceptable. The SN74HC374N is recommended due to its higher current inventory availability and active production status. The SN74HC374AN is preferred if your circuit design requires the tighter 31 ns propagation delay specification at 50 pF load.