74HCT368N,652 Equivalent & Substitute Parts

Part Overview

The 74HCT368N,652 is a Buffer, Inverting logic IC manufactured by NXP USA Inc., featuring 2 elements with 2 and 4 (Hex) bits per element and 3-state output capability. This 16-DIP through-hole component operates across a 4.5V to 5.5V supply voltage range and is rated for -40°C to 125°C operating temperature. The product is currently obsolete, making identification of functionally equivalent alternatives essential for legacy system maintenance and component sourcing.

Substiute Parts

74HCT368N,652

NXP USA Inc.In Stock: 72074HCT368N,652 Datasheet

Current PartRFQ

CD74HCT368E

Harris CorporationIn Stock: 13575CD74HCT368E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HCT368N,652 is determined by the following critical parameters:

• Logic Function: Buffer, Inverting configuration with identical element and bit-per-element architecture
• Package Compatibility: 16-DIP form factor with 0.300" (7.62mm) pitch for direct PCB mounting
• Electrical Specifications: Supply voltage range (4.5V ~ 5.5V), output type (3-State), and output current ratings
• Operating Temperature Range: Functional performance across specified thermal conditions
• Pin Configuration: Identical pinout and signal routing

The CD74HCT368E qualifies as a manufacturer-recommended substitute based on matching logic type, element configuration, output characteristics, and physical package dimensions. Both components share the 74HCT base product number and are designed for equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

CD74HCT368E is the manufacturer-recommended substitute for 74HCT368N,652 applications. Both components are obsolete products sharing identical logic architecture and package specifications.

Electrical Considerations: The CD74HCT368E exhibits lower output current ratings (4mA vs. 6mA for both high and low states). Circuit designs must account for this reduced drive capability when selecting this substitute. Supply voltage compatibility remains identical across both components (4.5V ~ 5.5V).

Temperature Performance: The CD74HCT368E supports an extended lower operating temperature limit (-55°C vs. -40°C), providing broader thermal coverage for applications requiring enhanced cold-temperature performance.

Compliance Status: The 74HCT368N,652 maintains ROHS3 compliance, while the CD74HCT368E is RoHS non-compliant. Applications subject to RoHS regulatory requirements must retain the original NXP component or identify alternative compliant solutions.

Packaging: Both components utilize identical 16-DIP through-hole packaging, enabling direct mechanical and electrical substitution without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT368E directly replace 74HCT368N,652 in all applications?

A: Direct substitution is possible from a functional and mechanical standpoint due to identical logic configuration and 16-DIP package compatibility. However, the reduced output current specification (4mA vs. 6mA) must be evaluated against circuit load requirements. Applications with marginal current budgets may require circuit analysis before substitution.

Q: What is the significance of the different operating temperature ranges?

A: The 74HCT368N,652 operates from -40°C to 125°C, while the CD74HCT368E extends the lower limit to -55°C. For applications operating within the -40°C to 125°C window, both components are functionally equivalent. Systems requiring operation below -40°C must use the CD74HCT368E.

Q: Why is RoHS compliance different between these components?

A: The 74HCT368N,652 is ROHS3 compliant, reflecting modern manufacturing standards. The CD74HCT368E, manufactured by Harris Corporation, predates current RoHS requirements and is classified as non-compliant. Regulatory compliance requirements determine which component is appropriate for specific applications.

Q: Are the pin configurations identical?

A: Yes. Both the 74HCT368N,652 and CD74HCT368E share the 74HCT368 base product number and utilize identical 16-DIP pinouts, enabling direct PCB mounting without modification.

Q: What packaging options are available?

A: Both components are supplied in 16-DIP (0.300", 7.62mm) through-hole packages. The CD74HCT368E is available in tube packaging, while the 74HCT368N,652 packaging specification is not detailed in the provided data.