74AC14CW Equivalent & Substitute Parts

Part Overview

The 74AC14CW is a 6-channel inverter IC with Schmitt trigger functionality, supplied as a die package for surface mount applications. This component operates across a 2V to 6V supply voltage range and is designed for logic inversion applications requiring hysteresis input characteristics.

The 74AC14CW is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, system redesigns, or component procurement when original stock becomes unavailable.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	6
Features	Schmitt Trigger
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.5V ~ 1.1V
Input Logic Level - High	2.2V ~ 3.9V
Max Propagation Delay @ V, Max CL	10ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Series	74AC

Substitute Part Grouping Explanation

Substitution of the 74AC14CW is determined by functional and electrical equivalence within the 74AC logic family. The substitute part must satisfy the following criteria:

Identical logic type (Inverter) and circuit configuration (6 channels, 6 inputs)
Schmitt trigger input characteristics
Matching electrical specifications: supply voltage range (2V ~ 6V), quiescent current (2 µA max), output current (24mA), input logic levels, and propagation delay (10ns @ 5V, 50pF)
Operating temperature range (-40°C ~ 85°C)
Surface mount technology compatibility

The primary distinction between the main part and its substitute is the package format: the 74AC14CW uses a die package, while the 74AC14SC uses a 14-SOIC package. Both are part of the same 74AC14 base product family and maintain electrical equivalence.

Parameter Comparison

Parameter	74AC14CW (Main Part)	74AC14SC (Substitute)
Manufacturer	onsemi	onsemi
Series	74AC	74AC
Logic Type	Inverter	Inverter
Number of Circuits	6	6
Number of Inputs	6	6
Features	Schmitt Trigger	Schmitt Trigger
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	0.5V ~ 1.1V	0.5V ~ 1.1V
Input Logic Level - High	2.2V ~ 3.9V	2.2V ~ 3.9V
Max Propagation Delay @ V, Max CL	10ns @ 5V, 50pF	10ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	Die	14-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete	Active
RoHS Status	Not specified	ROHS3 Compliant
Inventory Status	776 Pcs New Original In Stock	2200 Pcs New Original In Stock

Engineering Selection Recommendations

The 74AC14SC is the active substitute for the obsolete 74AC14CW. Both parts maintain identical electrical specifications and functional performance. The 74AC14SC is ROHS3 compliant and currently in active production status, making it the preferred choice for new designs and ongoing production requirements.

Selection between these parts depends on application-specific packaging requirements. The 74AC14CW die package is suitable for hybrid circuit integration or custom packaging applications. The 74AC14SC 14-SOIC package is suitable for standard PCB assembly processes and provides greater availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the 74AC14SC directly replace the 74AC14CW in all applications?

A: Electrical substitution is complete. The 74AC14SC provides identical logic performance, electrical characteristics, and operating specifications. Substitution feasibility depends on physical packaging requirements. If the application requires a die package, the 74AC14SC 14-SOIC package is not compatible. If the application can accommodate a 14-SOIC package, the 74AC14SC is a direct functional substitute.

Q: What is the primary difference between these two parts?

A: The 74AC14CW is supplied as a bare die, while the 74AC14SC is packaged in a 14-SOIC surface mount package. All electrical specifications, logic functionality, and performance parameters are identical.

Q: Why is the 74AC14CW classified as obsolete?

A: The 74AC14CW die package format has been discontinued by the manufacturer. The 74AC14SC 14-SOIC package remains in active production and is the current standard offering for this logic function.

Q: Are there compliance differences between these parts?

A: The 74AC14SC is ROHS3 compliant. Compliance information for the 74AC14CW is not specified in the available data. For applications requiring specific regulatory compliance, the 74AC14SC is the recommended choice.

Q: What is the inventory status for each part?

A: The 74AC14CW has 776 pieces in stock. The 74AC14SC has 2200 pieces in stock, providing greater availability for procurement.

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