SN74ACT74NE4 Equivalent & Substitute Parts

Part Overview

The SN74ACT74NE4 is a dual D-type flip-flop logic integrated circuit manufactured by Texas Instruments. This device functions as a 2-element, 1-bit positive edge-triggered flip-flop with complementary outputs and Set/Reset capability. The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and functional characteristics align with the original specification. The SN74ACT74NE4 operates within the 74ACT logic family, establishing the baseline for functional equivalence.

Key Parameters

Parameter	Value	Unit
Logic Family	74ACT	—
Function	Set(Preset) and Reset	—
Type	D-Type Flip-Flop	—
Number of Elements	2	—
Number of Bits per Element	1	—
Output Type	Complementary	—
Trigger Type	Positive Edge	—
Clock Frequency	210	MHz
Max Propagation Delay @ 5V, 50pF	11	ns
Voltage Supply Range	4.5 to 5.5	V
Current Output High/Low	24/24	mA
Quiescent Current (Iq)	2	µA
Input Capacitance	3	pF
Operating Temperature Range	-40 to 85	°C
Package Type	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitute parts for the SN74ACT74NE4 are identified based on strict parametric equivalence within the 74ACT logic family. The substitution criteria are:

Primary Equivalence Parameters:

Logic family classification (74ACT)
Functional type (D-Type flip-flop, dual element, 1-bit)
Output configuration (Complementary)
Trigger mechanism (Positive Edge)
Set/Reset functionality

Electrical Performance Parameters:

Clock frequency (210 MHz minimum)
Propagation delay (11 ns maximum @ 5V, 50pF)
Supply voltage range (4.5V to 5.5V)
Output drive capability (24mA high and low)
Quiescent current (2 µA maximum)

Physical and Environmental Parameters:

Package type (14-DIP, 0.300" pitch, 7.62mm)
Mounting configuration (Through Hole)
Operating temperature range (-40°C to 85°C)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Parameter	SN74ACT74NE4	SN74ACT74N	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Logic Family	74ACT	74ACT	✓
Function	Set(Preset) and Reset	Set(Preset) and Reset	✓
Type	D-Type	D-Type	✓
Number of Elements	2	2	✓
Number of Bits per Element	1	1	✓
Output Type	Complementary	Complementary	✓
Trigger Type	Positive Edge	Positive Edge	✓
Clock Frequency	210 MHz	210 MHz	✓
Max Propagation Delay @ 5V, 50pF	11 ns	11 ns	✓
Voltage Supply Range	4.5 to 5.5 V	4.5 to 5.5 V	✓
Current Output High/Low	24/24 mA	24/24 mA	✓
Quiescent Current (Iq)	2 µA	2 µA	✓
Input Capacitance	3 pF	3 pF	✓
Operating Temperature Range	-40 to 85°C	-40 to 85°C	✓
Package Type	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	✓
Mounting Type	Through Hole	Through Hole	✓
Product Status	Active	Active	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓

Engineering Selection Recommendations

SN74ACT74N is a direct parametric equivalent to the SN74ACT74NE4. Both parts share identical electrical specifications, functional characteristics, and physical packaging. Selection between these parts is based on availability and inventory status rather than technical performance differentiation.

Both parts maintain Active product status from Texas Instruments, ensuring continued manufacturing support and supply chain stability. Both parts carry ROHS3 compliance certification and REACH unaffected designation, meeting current environmental and regulatory requirements for industrial and commercial applications.

The SN74ACT74N currently maintains higher inventory availability (2100 pieces) compared to the SN74ACT74NE4 (685 pieces), which may influence procurement decisions based on project timeline and volume requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74ACT74N be used as a direct replacement for SN74ACT74NE4?

A: Yes. Both parts are parametric equivalents with identical electrical performance, functional characteristics, and physical packaging. No circuit modifications are required for substitution.

Q: What is the difference between SN74ACT74NE4 and SN74ACT74N?

A: The parts are functionally and electrically identical. The designation difference reflects packaging or distribution channel variations from Texas Instruments. Both are 14-DIP through-hole packages with identical pin configurations and electrical specifications.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts operate within the same voltage supply range (4.5V to 5.5V), maintain identical propagation delay characteristics (11 ns @ 5V, 50pF), and provide equivalent output drive capability (24mA). Pin-to-pin compatibility is complete.

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

A: Yes. Both SN74ACT74NE4 and SN74ACT74N carry ROHS3 compliance certification and REACH unaffected designation. Both parts are classified as Active product status by Texas Instruments.

Q: What is the operating temperature range for these parts?

A: Both parts operate across the temperature range of -40°C to 85°C (TA), suitable for industrial and commercial applications.

Q: Are these parts suitable for high-speed digital logic applications?

A: Yes. Both parts support clock frequencies up to 210 MHz with maximum propagation delay of 11 ns at 5V with 50pF load, making them suitable for standard digital logic timing requirements.

Q: What is the package configuration for both parts?

A: Both parts are supplied in 14-DIP (0.300", 7.62mm) through-hole packages, compatible with standard PCB mounting and breadboard applications.

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