SN74AC04NG4 Equivalent & Substitute Parts

Part Overview

The SN74AC04NG4 is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-PDIP package. This component performs basic logic inversion operations across six independent channels, each with a single input. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production needs. The SN74AC04 series remains actively supported through alternative packaging configurations.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.9V ~ 1.65V
Input Logic Level - High	2.1V ~ 3.85V
Max Propagation Delay @ V, Max CL	7ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74AC04NG4 is determined by strict equivalence across the following critical parameters:

Logic function: 6-channel inverter with single input per channel
Electrical specifications: 2V ~ 6V supply voltage, 24mA output current, 7ns propagation delay
Thermal performance: -40°C ~ 85°C operating range
Physical form factor: 14-DIP through-hole package
Regulatory compliance: ROHS3 and REACH standards

The SN74AC04N meets all these criteria while maintaining active product status and improved inventory availability. Both parts share identical base product number (74AC04) and electrical characteristics, differing only in packaging configuration (tube vs. individual packaging) and current availability status.

Parameter Comparison

Parameter	SN74AC04NG4 (Main Part)	SN74AC04N (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Logic Type	Inverter	Inverter
Number of Circuits	6	6
Number of Inputs	1	1
Voltage - Supply	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.9V ~ 1.65V	0.9V ~ 1.65V
Input Logic Level - High	2.1V ~ 3.85V	2.1V ~ 3.85V
Max Propagation Delay @ V, Max CL	7ns @ 5V, 50pF	7ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Through Hole	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics	Active
Inventory Availability	661 Pcs	2800 Pcs

Engineering Selection Recommendations

The SN74AC04N is a direct functional equivalent to the SN74AC04NG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and thermal specifications. The primary distinction is product status: the SN74AC04NG4 is discontinued at DiGi Electronics, while the SN74AC04N maintains active status with significantly higher inventory availability (2800 units vs. 661 units).

Both parts satisfy ROHS3 compliance and REACH requirements. The SN74AC04N is the recommended selection for new designs and ongoing production due to sustained manufacturer support and improved supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the SN74AC04N directly replace the SN74AC04NG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same 14-DIP package footprint, pin configuration, voltage specifications (2V ~ 6V), output current ratings (24mA), propagation delay (7ns @ 5V, 50pF), and operating temperature range (-40°C ~ 85°C). No circuit modifications are required.

Q: What is the difference between SN74AC04NG4 and SN74AC04N?

A: The parts differ only in packaging configuration and availability status. The SN74AC04NG4 uses individual packaging (NG4 suffix), while the SN74AC04N is supplied in tube packaging. The SN74AC04NG4 is discontinued at DiGi Electronics; the SN74AC04N remains in active production.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected. They carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8542.39.0001).

Q: What is the 14-DIP package specification?

A: The 14-DIP package is a dual-in-line through-hole configuration with 0.300" (7.62mm) row spacing. This standard package is compatible with conventional PCB layouts and breadboard prototyping.

Q: Why is the SN74AC04NG4 discontinued?

A: Product discontinuation at DiGi Electronics reflects inventory management and supply chain decisions. The base product (74AC04) remains in active production through alternative packaging configurations, including the SN74AC04N.

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