CD74HC366M Equivalent & Substitute Parts

Part Overview

The CD74HC366M is a 6-bit inverting buffer logic IC manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This component functions as a logic buffer with inverting capability and 3-state output control, operating across a 2V to 6V supply voltage range. The CD74HC366M carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

CD74HC366M

Texas InstrumentsIn Stock: 1197CD74HC366M Datasheet

Current PartRFQ

CD74HC366M96

Texas InstrumentsIn Stock: 3381CD74HC366M96 Datasheet

MFR RecommendedRFQ

74HC366D,652

Nexperia USA Inc.In Stock: 78674HC366D,652 Datasheet

MFR RecommendedRFQ

74HC366D,653

NXP USA Inc.In Stock: 341374HC366D,653 Datasheet

MFR RecommendedRFQ

74HC366D-Q100,118

Nexperia USA Inc.In Stock: 89174HC366D-Q100,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC366M is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Inverting (1 Element, 6 Bits per Element)
• Output Type: 3-State
• Output Current Capability: 7.8mA High, 7.8mA Low
• Supply Voltage Range: 2V ~ 6V
• Package / Case: 16-SOIC surface mount form factor
• Base Product Number: 74HC366

All substitute parts listed maintain identical functional specifications and package compatibility. Variations in product status, operating temperature range, packaging format (Tube, Cut Tape, Bulk, Tape & Reel), and manufacturer do not affect electrical interchangeability at the component level.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring direct replacement of the CD74HC366M, the following selection criteria apply:

Primary Recommendation: CD74HC366M96 This Texas Instruments part maintains Active product status and identical electrical specifications to the CD74HC366M, including the full -55°C to 125°C operating temperature range. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tube). This part is suitable for designs with no temperature range restrictions below -40°C.

Secondary Recommendations: 74HC366D,653 and 74HC366D-Q100,118 Both NXP/Nexperia alternatives provide Active product status with ROHS3 compliance. These parts operate across -40°C to 125°C, which is acceptable for most commercial and industrial applications. The 74HC366D-Q100,118 variant includes AEC-Q100 automotive qualification, making it suitable for automotive-grade applications.

Not Recommended: 74HC366D,652 This Nexperia part carries Obsolete product status and should be avoided for new designs or long-term supply assurance.

Temperature Consideration: If your application requires operation below -40°C, only the CD74HC366M and CD74HC366M96 (both rated to -55°C) are suitable. For applications limited to -40°C and above, all Active parts are interchangeable.

Frequently Asked Questions (FAQ)

Q: Can I use CD74HC366M96 as a direct replacement for CD74HC366M? A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, including output current (7.8mA), supply voltage range (2V ~ 6V), and operating temperature range (-55°C ~ 125°C). The only difference is packaging format (Cut Tape & Digi-Reel versus Tube). Pin configuration and functional behavior are identical.

Q: What is the difference between the Texas Instruments and Nexperia/NXP versions? A: All parts maintain the same logic function, output characteristics, and 16-SOIC package footprint. The primary differences are manufacturer, product status, and operating temperature range. Texas Instruments versions support -55°C to 125°C, while Nexperia/NXP versions support -40°C to 125°C. For applications operating above -40°C, both manufacturers' parts are electrically interchangeable.

Q: Is the 74HC366D-Q100,118 suitable for automotive applications? A: Yes. This part carries AEC-Q100 automotive qualification and is rated for automotive-grade reliability. It maintains the same electrical specifications as other 74HC366 variants and is suitable for automotive designs requiring this qualification level.

Q: Why is the operating temperature range different between manufacturers? A: The -55°C lower limit on Texas Instruments parts versus -40°C on Nexperia/NXP parts reflects different manufacturer testing and qualification standards. Both ranges cover standard commercial and industrial operating conditions. Selection depends on your application's minimum operating temperature requirement.

Q: Can I mix different packaging formats in the same design? A: Yes. Packaging format (Tube, Cut Tape, Bulk, Tape & Reel) affects procurement and handling but does not impact electrical performance or PCB assembly compatibility. All variants use the same 16-SOIC surface mount package with identical pin configuration and spacing.

Q: Should I avoid the obsolete 74HC366D,652? A: Yes. While electrically equivalent, the Obsolete status indicates discontinued production and limited future availability. For new designs or long-term supply requirements, select from Active status parts: CD74HC366M96, 74HC366D,653, or 74HC366D-Q100,118.

Q: Are all these parts ROHS3 compliant? A: The CD74HC366M, CD74HC366M96, 74HC366D,652, and 74HC366D-Q100,118 are explicitly ROHS3 compliant. The 74HC366D,653 does not specify RoHS status in the provided data. Verify RoHS compliance with the manufacturer if this is a design requirement.