74FCT3244SOG8 Equivalent & Substitute Parts

Part Overview

The 74FCT3244SOG8 is a non-inverting buffer logic IC manufactured by Renesas Electronics Corporation, featuring 2 elements with 4 bits per element and 3-state output capability in a 20-SOIC surface mount package. This component is classified as Last Time Buy, indicating end-of-life status from the original manufacturer. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this device.

Substiute Parts

74FCT3244SOG8

Renesas Electronics CorporationIn Stock: 96574FCT3244SOG8 Datasheet

Current PartRFQ

CY74FCT244TSOC

Texas InstrumentsIn Stock: 1062CY74FCT244TSOC Datasheet

DirectRFQ

CY74FCT244TSOCT

Texas InstrumentsIn Stock: 1117CY74FCT244TSOCT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74FCT3244SOG8 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Functional Equivalence Criteria:

• Logic type: Buffer, Non-Inverting
• Number of elements: 2
• Number of bits per element: 4
• Output type: 3-State
• Package type: 20-SOIC with identical physical dimensions (0.295", 7.50mm Width)
• Mounting type: Surface Mount
• Operating temperature range: -40°C ~ 85°C (TA)
• Base product number: 74FCT series

Electrical Compatibility Considerations: Substitute parts must maintain the same logic family (74FCT) and functional architecture. Voltage supply ranges and output current specifications may vary between manufacturers while maintaining functional compatibility within the 74FCT logic family standard.

The identified substitute parts CY74FCT244TSOC and CY74FCT244TSOCT, both manufactured by Texas Instruments, meet all functional and mechanical equivalence criteria. These parts differ primarily in packaging format (Tube vs. Cut Tape) and voltage supply specifications, which are within acceptable substitution parameters for this logic family.

Parameter Comparison

Engineering Selection Recommendations

Both CY74FCT244TSOC and CY74FCT244TSOCT are active production parts from Texas Instruments and represent functionally equivalent alternatives to the 74FCT3244SOG8. The primary distinction between these substitutes is packaging format: CY74FCT244TSOC is supplied in Tube packaging, while CY74FCT244TSOCT is supplied in Cut Tape format.

Selection between these two Texas Instruments alternatives should be based on assembly process requirements and inventory management practices. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, consistent with the original Renesas component.

The voltage supply range difference (2.7V ~ 3.6V for Renesas versus 4.75V ~ 5.25V for Texas Instruments) and output current specifications (8mA/24mA versus 32mA/64mA) reflect manufacturer-specific implementations within the 74FCT logic family. Circuit design validation is required to confirm compatibility with existing power supply and load specifications.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT244TSOC and CY74FCT244TSOCT be used interchangeably with 74FCT3244SOG8?

A: Both Texas Instruments parts are functionally equivalent substitutes. They share identical logic architecture, pin configuration, and 20-SOIC package dimensions. The primary difference is packaging format (Tube versus Cut Tape), which affects handling and assembly processes but not electrical function.

Q: What is the difference between CY74FCT244TSOC and CY74FCT244TSOCT?

A: Both parts are identical in electrical specifications and package type. The distinction is packaging format: TSOC indicates Tube packaging, while TSOCT indicates Cut Tape packaging. Selection depends on assembly line requirements and inventory management preferences.

Q: Are there voltage supply compatibility concerns when substituting?

A: The 74FCT3244SOG8 operates at 2.7V ~ 3.6V, while both Texas Instruments substitutes operate at 4.75V ~ 5.25V. Circuit design validation is required to confirm that existing power supply and load specifications are compatible with the substitute part's electrical characteristics.

Q: Do the substitute parts maintain the same compliance certifications?

A: Yes. Both CY74FCT244TSOC and CY74FCT244TSOCT are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original 74FCT3244SOG8 specifications.

Q: Is the 20-SOIC package footprint identical across all three parts?

A: Yes. All three parts use the 20-SOIC package with identical physical dimensions (0.295", 7.50mm Width), ensuring direct PCB footprint compatibility without layout modifications.

Q: What is the significance of the 74FCT3244SOG8 being Last Time Buy status?

A: Last Time Buy status indicates that Renesas Electronics has discontinued this part and will not accept new orders beyond a specified cutoff date. Identifying and qualifying substitute parts is necessary to ensure continued design support and supply chain continuity for existing applications.