CD74HCT368MT Equivalent & Substitute Parts

Part Overview

The CD74HCT368MT is a Buffer, Inverting logic IC manufactured by Texas Instruments, featuring 2 elements with 2 and 4 (Hex) bits per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 16-SOIC surface mount package. The part is currently in Last Time Buy status, making identification of equivalent and substitute parts essential for ongoing design support and procurement planning.

Substiute Parts

CD74HCT368MT

Texas InstrumentsIn Stock: 1828CD74HCT368MT Datasheet

Current PartRFQ

CD74HCT368M96

Texas InstrumentsIn Stock: 1501CD74HCT368M96 Datasheet

Parametric EquivalentRFQ

74HCT257D,652

Nexperia USA Inc.In Stock: 97774HCT257D,652 Datasheet

MFR RecommendedRFQ

74HCT368D,653

Nexperia USA Inc.In Stock: 367874HCT368D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74HCT368MT are identified based on strict parametric equivalence within the following criteria:

Primary Substitution Criteria:

• Logic Type: Buffer, Inverting
• Number of Elements: 2
• Number of Bits per Element: 2, 4 (Hex)
• Output Type: 3-State
• Voltage - Supply: 4.5V ~ 5.5V
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Series: 74HCT
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parametric Equivalent (Full Compatibility): CD74HCT368M96 matches all electrical and mechanical parameters of the main part, with identical output current specifications (4mA, 4mA) and operating temperature range (-55°C ~ 125°C).

Manufacturer Recommended Substitute (Functional Equivalent with Parameter Variance): 74HCT368D,653 (Nexperia USA Inc.) provides functional equivalence as a Buffer, Inverting IC with identical logic configuration. This part differs in output current specifications (6mA, 6mA versus 4mA, 4mA) and operating temperature range (-40°C ~ 125°C versus -55°C ~ 125°C), representing a narrower temperature specification.

Secondary Substitute (Different Logic Function): 74HCT257D,652 (Nexperia USA Inc.) is a Multiplexer 4 x 2:1 logic IC within the 74HCT series. This part operates within the same voltage supply range (4.5V ~ 5.5V) and package specification (16-SOIC) but performs a different logic function and is marked as Obsolete.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended): CD74HCT368M96 is the primary substitute for CD74HCT368MT. Both parts are manufactured by Texas Instruments, share identical electrical specifications, and maintain Active product status. This substitution requires no circuit redesign and provides full functional compatibility.

For Extended Temperature Range Applications: CD74HCT368MT maintains an operating temperature range of -55°C to 125°C. The alternative 74HCT368D,653 from Nexperia USA Inc. operates within -40°C to 125°C, representing a narrower low-temperature specification. Selection of 74HCT368D,653 is appropriate only when the -40°C minimum temperature threshold is acceptable for the application. This part also provides higher output current capability (6mA versus 4mA).

For New Designs: CD74HCT368M96 is the recommended choice due to Active product status and full parametric equivalence with the original CD74HCT368MT specification.

Not Recommended: 74HCT257D,652 performs a different logic function (Multiplexer versus Buffer, Inverting) and carries Obsolete product status. This part is not suitable as a substitute for the CD74HCT368MT in applications requiring buffer and inverting functionality.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT368M96 be used as a direct replacement for CD74HCT368MT? A: Yes. CD74HCT368M96 is a parametric equivalent with identical electrical specifications, output current ratings, operating temperature range, and package configuration. No circuit modifications are required.

Q: What is the difference between CD74HCT368MT and 74HCT368D,653? A: Both are Buffer, Inverting ICs within the 74HCT series with identical logic configuration. The primary differences are: output current (4mA versus 6mA), operating temperature range (-55°C to 125°C versus -40°C to 125°C), and manufacturer (Texas Instruments versus Nexperia USA Inc.). The 74HCT368D,653 is suitable for applications where the narrower temperature range is acceptable.

Q: Why is 74HCT257D,652 listed as a substitute if it performs a different function? A: 74HCT257D,652 is listed as a secondary reference due to shared series designation (74HCT) and package compatibility (16-SOIC). However, this part is a Multiplexer, not a Buffer, Inverting IC, and performs a fundamentally different logic function. It is not a functional substitute for the CD74HCT368MT.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the environmental and regulatory specifications of the CD74HCT368MT.

Q: What is the significance of "Last Time Buy" status for CD74HCT368MT? A: Last Time Buy status indicates that the manufacturer will no longer produce this part after a specified date. CD74HCT368M96, which maintains Active status, is the recommended long-term alternative for ongoing procurement and new designs.

Q: Can 74HCT368D,653 be used in applications requiring the full -55°C to 125°C temperature range? A: No. 74HCT368D,653 operates only to -40°C minimum. Applications requiring operation below -40°C must use CD74HCT368MT or CD74HCT368M96, both of which support -55°C minimum temperature.