74FCT240ATSOG8 Equivalent & Substitute Parts

Part Overview

The 74FCT240ATSOG8 is a Buffer, Inverting logic IC manufactured by Renesas Electronics Corporation, featuring 2 elements with 4 bits per element and 3-state output capability. This component operates within the 4.75V to 5.25V supply voltage range and is housed in a 20-SOIC package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

74FCT240ATSOG8

Renesas Electronics CorporationIn Stock: 221674FCT240ATSOG8 Datasheet

Current PartRFQ

74FCT240ACTSOG8

Renesas Electronics CorporationIn Stock: 85374FCT240ACTSOG8 Datasheet

MFR RecommendedRFQ

CY74FCT240ATSOC

Texas InstrumentsIn Stock: 2735CY74FCT240ATSOC Datasheet

MFR RecommendedRFQ

CY74FCT240ATSOCT

Texas InstrumentsIn Stock: 3484CY74FCT240ATSOCT Datasheet

MFR RecommendedRFQ

CY74FCT240TSOC

Texas InstrumentsIn Stock: 1815CY74FCT240TSOC Datasheet

MFR RecommendedRFQ

CY74FCT240TSOCT

Texas InstrumentsIn Stock: 2935CY74FCT240TSOCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74FCT240ATSOG8 is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in output current capability (15mA vs. 32mA for output high) and packaging format (Tube vs. Tape & Reel) do not affect functional substitution but may impact procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the 74FCT240ATSOG8. Selection among active alternatives should be based on the following criteria:

Renesas Electronics Substitutes:

• 74FCT240ACTSOG8 remains available from the original manufacturer with active product status, providing continuity within the Renesas 74FCT series.

Texas Instruments Substitutes:

• CY74FCT240ATSOC and CY74FCT240ATSOCT are functionally equivalent Texas Instruments alternatives with enhanced output high current capability (32mA vs. 15mA), providing improved drive capability while maintaining all other electrical specifications.
• CY74FCT240TSOC and CY74FCT240TSOCT are variant designations within the same product line, differentiated by packaging format (Tube vs. Tape & Reel).

All substitute parts are ROHS3 compliant and carry MSL rating of 1 (Unlimited), ensuring compliance with environmental and moisture sensitivity requirements. Packaging format selection (Tube vs. Tape & Reel) should align with assembly process requirements and procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can the 74FCT240ATSOG8 be directly replaced with any of the listed substitutes?

A: Yes. All listed substitute parts maintain identical logic type, element count, bit configuration, output type, supply voltage range, operating temperature range, package dimensions, and mounting type. Direct pin-for-pin substitution is supported.

Q: What is the difference between Tube and Tape & Reel packaging formats?

A: Tube packaging is suitable for manual assembly and lower-volume applications. Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly processes. Both formats contain the same component and are electrically equivalent.

Q: Does the increased output high current (32mA vs. 15mA) in Texas Instruments parts affect compatibility?

A: No. Higher output current capability is a superset of the original specification and does not affect functional compatibility. Circuits designed for the 74FCT240ATSOG8 will operate correctly with substitute parts offering higher current output.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting environmental and hazardous substance restrictions.

Q: What is the significance of the MSL rating?

A: Moisture Sensitivity Level (MSL) 1 (Unlimited) indicates that these components have no moisture sensitivity restrictions and do not require special moisture control during storage, handling, or assembly.