SN7414D Equivalent & Substitute Parts

Part Overview

The SN7414D is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in a 14-SOIC surface mount package. This device is classified as Last Time Buy, indicating limited availability and the necessity to identify equivalent alternatives for ongoing production requirements. The SN7414D operates within the standard 7400 logic series and provides reliable signal inversion with hysteresis characteristics suitable for noise-tolerant applications.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Features	Schmitt Trigger
Voltage - Supply	4.75V ~ 5.25V
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	0°C ~ 70°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SN7414D is determined by the following mandatory parameters:

Logic Type: Inverter with Schmitt trigger functionality
Circuit Configuration: 6 channels, 1 input per channel
Package: 14-SOIC form factor with identical physical dimensions
Supply Voltage Compatibility: Operating range must encompass or exceed 4.75V ~ 5.25V
Surface Mount Capability: PCB assembly compatibility

The SN7414DR qualifies as a direct substitute based on identical electrical specifications and packaging, with the primary distinction being packaging format (Tape & Reel versus Tube). The 74ACT14SCX represents a functional equivalent from an alternative manufacturer (onsemi) within the 74ACT logic family, maintaining the same circuit configuration and package while operating across an extended temperature range and supply voltage window.

Parameter Comparison

Parameter	SN7414D	SN7414DR	74ACT14SCX
Manufacturer	Texas Instruments	Texas Instruments	onsemi
Logic Type	Inverter	Inverter	Inverter
Number of Circuits	6	6	6
Features	Schmitt Trigger	Schmitt Trigger	Schmitt Trigger
Voltage - Supply	4.75V ~ 5.25V	4.75V ~ 5.25V	4.5V ~ 5.5V
Input Logic Level - Low	0.6V	0.6V	0.8V
Input Logic Level - High	2V	2V	2V
Max Propagation Delay @ V, Max CL	22ns @ 5V, 15pF	22ns @ 5V, 15pF	10ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

SN7414DR is the preferred substitute for the SN7414D. Both devices are manufactured by Texas Instruments with identical electrical characteristics and packaging specifications. The SN7414DR maintains Active product status, ensuring long-term availability and supply chain continuity. The distinction between Tube and Tape & Reel packaging does not affect functional performance and represents a standard industry variation for different assembly environments.

74ACT14SCX serves as an alternative equivalent from onsemi. This device maintains functional compatibility through identical circuit configuration and package form factor. The 74ACT14SCX operates across an extended supply voltage range (4.5V ~ 5.5V) and temperature range (-40°C ~ 85°C), providing broader environmental tolerance. The 74ACT series exhibits faster propagation delay (10ns versus 22ns) and higher output current capability (24mA versus 16mA), characteristics that may benefit noise-sensitive or high-speed applications. The higher input logic level threshold (0.8V versus 0.6V) represents a minor specification difference that does not preclude substitution in standard 5V logic environments.

Frequently Asked Questions (FAQ)

Q: Can SN7414DR be used as a direct replacement for SN7414D?

A: Yes. The SN7414DR is electrically and mechanically identical to the SN7414D. The only difference is packaging format (Tape & Reel versus Tube), which does not affect circuit performance or PCB assembly compatibility.

Q: What are the key differences between SN7414D and 74ACT14SCX?

A: Both devices provide 6-channel inverter functionality with Schmitt trigger inputs in 14-SOIC packages. The 74ACT14SCX operates across a wider supply voltage range (4.5V ~ 5.5V versus 4.75V ~ 5.25V) and extended temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). The 74ACT14SCX exhibits faster propagation delay (10ns versus 22ns) and higher output current (24mA versus 16mA). The input logic level threshold for the 74ACT14SCX is 0.8V compared to 0.6V for the SN7414D.

Q: Is the 74ACT14SCX suitable for applications requiring the original SN7414D specifications?

A: The 74ACT14SCX is functionally compatible with the SN7414D for standard 5V logic applications. The extended operating ranges and improved performance characteristics of the 74ACT14SCX do not create incompatibility. Applications operating within the SN7414D temperature range (0°C ~ 70°C) and supply voltage range (4.75V ~ 5.25V) will function identically with either device.

Q: Are all three parts RoHS compliant?

A: Yes. The SN7414D, SN7414DR, and 74ACT14SCX are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements.

Q: What packaging options are available for these substitutes?

A: The SN7414D is supplied in Tube packaging. The SN7414DR is supplied in Tape & Reel format. The 74ACT14SCX is supplied in Cut Tape and Digi-Reel packaging. All three devices use the identical 14-SOIC physical package form factor suitable for automated PCB assembly.

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