74HCT366DB,118 Equivalent & Substitute Parts

Part Overview

The 74HCT366DB,118 is an inverting buffer logic integrated circuit manufactured by Nexperia USA Inc. It features 1 element with 6 bits per element and 3-state output capability, housed in a 16-SSOP surface mount package. The device operates across a 4.5V to 5.5V supply voltage range and supports operating temperatures from -40°C to 125°C.

The 74HCT366DB,118 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this logic buffer component.

Substiute Parts

74HCT366DB,118

Nexperia USA Inc.In Stock: 85174HCT366DB,118 Datasheet

Current PartRFQ

74HCT366PW,118

Nexperia USA Inc.In Stock: 89274HCT366PW,118 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HCT366DB,118 are identified based on functional and electrical equivalence. The critical parameters determining substitutability are:

• Logic Type: Buffer, Inverting
• Number of Elements: 1
• Number of Bits per Element: 6
• Output Type: 3-State
• Current - Output High, Low: 6mA, 6mA
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 125°C (TA)
• Base Product Number: 74HCT366

The 74HCT366PW,118 shares identical electrical specifications and functional characteristics with the main part. The primary difference is the package type: 16-TSSOP (0.173", 4.40mm Width) versus the original 16-SSOP (0.209", 5.30mm Width). Both packages are surface mount configurations with compatible pinouts for the 74HCT366 base product line.

Parameter Comparison

Engineering Selection Recommendations

The 74HCT366PW,118 is the primary substitute for the obsolete 74HCT366DB,118. Both parts maintain identical electrical specifications, functional characteristics, and compliance certifications (ROHS3 Compliant, REACH Unaffected). The 74HCT366PW,118 carries Active product status, ensuring ongoing availability and supply chain support.

The substitution is electrically transparent: voltage supply ranges, output current ratings, operating temperature ranges, and logic functionality are identical. The package transition from 16-SSOP to 16-TSSOP represents a footprint change that requires PCB layout modification. The 16-TSSOP package is narrower (0.173" versus 0.209"), which may provide space optimization benefits in compact designs.

Both parts are supplied with identical RoHS and REACH compliance certifications and unlimited moisture sensitivity ratings, supporting deployment in standard manufacturing and storage environments.

Frequently Asked Questions (FAQ)

Q: Can the 74HCT366PW,118 directly replace the 74HCT366DB,118 without circuit modification?

A: The parts are electrically equivalent and functionally identical. However, the package footprint differs: 16-SSOP versus 16-TSSOP. Direct PCB-level substitution requires footprint redesign. Electrical circuit operation remains unchanged.

Q: What is the difference between 16-SSOP and 16-TSSOP packages?

A: Both are surface mount packages with identical pinout and electrical performance. The 16-TSSOP (0.173" width) is narrower than the 16-SSOP (0.209" width). The TSSOP variant offers reduced board space requirements.

Q: Why is the 74HCT366DB,118 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 74HCT366PW,118 remains in active production, providing a supported alternative for new designs and ongoing supply requirements.

Q: Are there compliance or certification differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH Unaffected status, and unlimited moisture sensitivity ratings (MSL 1). Regulatory and environmental certifications are equivalent.

Q: What inventory status should be considered for production planning?

A: The 74HCT366DB,118 has 791 pieces in stock as new original inventory. The 74HCT366PW,118 has 879 pieces available. For new designs, the active-status 74HCT366PW,118 is recommended to ensure long-term supply continuity.