SN74HC368D Equivalent & Substitute Parts

Part Overview

The SN74HC368D is a Buffer, Inverting logic IC manufactured by Texas Instruments, featuring 2 elements with 2, 4 (Hex) bit per element configuration and 3-State output capability. This 16-SOIC surface mount device operates across a 2V to 6V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

SN74HC368D

Texas InstrumentsIn Stock: 1344SN74HC368D Datasheet

Current PartRFQ

SN74HC368DR

Texas InstrumentsIn Stock: 2217SN74HC368DR Datasheet

DirectRFQ

74HC368D,653

Nexperia USA Inc.In Stock: 356574HC368D,653 Datasheet

UpgradeRFQ

MC74HC368ADR2G

onsemiIn Stock: 2830MC74HC368ADR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HC368D is determined by strict alignment of the following critical parameters:

• Logic Type: Buffer, Inverting
• Number of Elements: 2
• Number of Bits per Element: 2, 4 (Hex)
• Output Type: 3-State
• Current - Output High, Low: 7.8mA, 7.8mA
• Voltage - Supply: 2V ~ 6V
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain these core electrical and mechanical specifications, ensuring functional and physical compatibility within the 74HC368 logic family.

Parameter Comparison

Engineering Selection Recommendations

SN74HC368DR (Direct Substitute - Recommended for Active Designs)

The SN74HC368DR is the primary substitute for the discontinued SN74HC368D. Manufactured by Texas Instruments, this part maintains identical electrical specifications and 16-SOIC package configuration. The device is currently Active in product status with higher inventory availability (2137 Pcs). The only difference is packaging format (Tape & Reel vs. Tube), which does not affect electrical or mechanical compatibility. This part is suitable for both new designs and legacy system support.

74HC368D,653 (Upgrade Option - Extended Temperature Range)

The 74HC368D,653 from Nexperia USA Inc. provides an extended operating temperature range of -40°C to 125°C compared to the original -40°C to 85°C specification. This part maintains all core electrical parameters and 16-SOIC package dimensions. With Active product status and the highest inventory level (3527 Pcs), this option is suitable for applications requiring enhanced thermal performance. The package designation (16-SO vs. 16-SOIC) reflects supplier nomenclature but maintains identical physical dimensions.

MC74HC368ADR2G (Alternative - Extended Temperature and Operating Range)

The MC74HC368ADR2G from onsemi offers the widest operating temperature range (-55°C to 125°C) among available substitutes. While marked as Obsolete in product status, this part maintains full electrical compatibility and 16-SOIC package specifications. This option is applicable only when extended low-temperature operation is required and inventory availability is confirmed.

Frequently Asked Questions (FAQ)

Q: Can SN74HC368DR be used as a direct replacement for SN74HC368D?

A: Yes. The SN74HC368DR is a direct electrical and mechanical substitute. Both parts share identical logic type, element configuration, output specifications, supply voltage range, and 16-SOIC package dimensions. The difference in packaging format (Tape & Reel vs. Tube) does not affect circuit performance or PCB assembly compatibility.

Q: What is the difference between 74HC368D,653 and the original SN74HC368D?

A: The 74HC368D,653 maintains all core electrical specifications but extends the operating temperature range to -40°C to 125°C versus the original -40°C to 85°C. Both parts are 16-SOIC surface mount devices with identical pin configuration and functional behavior. The extended temperature rating makes this part suitable for applications with higher thermal requirements.

Q: Is MC74HC368ADR2G compatible with designs using SN74HC368D?

A: Yes, MC74HC368ADR2G is electrically and mechanically compatible. It provides the widest operating temperature range (-55°C to 125°C) and maintains identical logic functionality, element count, output type, and 16-SOIC package specifications. However, its Obsolete product status should be considered for long-term supply chain planning.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts—SN74HC368DR, 74HC368D,653, and MC74HC368ADR2G—are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original SN74HC368D specifications.

Q: Which substitute should be selected for new production designs?

A: SN74HC368DR is the recommended choice for new designs. It is manufactured by Texas Instruments (original manufacturer), maintains Active product status, and provides the best balance of availability, supply chain stability, and electrical compatibility. The Tape & Reel packaging is standard for production environments.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All substitute parts share identical 16-SOIC package dimensions (0.154", 3.90mm width) and pin configurations, enabling direct PCB-level interchangeability without layout modifications.