74FCT373CTSOG8 Equivalent & Substitute Parts

Part Overview

The 74FCT373CTSOG8 is a D-Type Transparent Latch logic IC manufactured by Renesas Electronics Corporation, configured as a single channel 8:8 multiplexer with tri-state output capability. This component operates within the 4.75V to 5.25V supply voltage range and is housed in a 20-SOIC surface mount package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute components ensures design continuity and supply chain reliability for applications requiring this logic function.

Substiute Parts

74FCT373CTSOG8

Renesas Electronics CorporationIn Stock: 101674FCT373CTSOG8 Datasheet

Current PartRFQ

CY74FCT373ATSOC

Texas InstrumentsIn Stock: 2976CY74FCT373ATSOC Datasheet

MFR RecommendedRFQ

CY74FCT373ATSOCT

Texas InstrumentsIn Stock: 742CY74FCT373ATSOCT Datasheet

MFR RecommendedRFQ

CY74FCT373TSOC

Texas InstrumentsIn Stock: 2264CY74FCT373TSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the 74FCT373CTSOG8 are qualified based on the following critical parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Supply Voltage Range: 4.75V ~ 5.25V
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Propagation Delay: 2ns
• Operating Temperature Range: -40°C ~ 85°C
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain electrical and mechanical compatibility across these parameters. Variations in output current specifications (Current - Output High, Low) do not preclude substitution when the substitute part meets or exceeds the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

CY74FCT373ATSOC and CY74FCT373TSOC from Texas Instruments are the preferred substitutes. Both parts maintain active product status, ensuring long-term availability and supply chain stability. These components are manufactured by a major semiconductor supplier and carry ROHS3 compliance certification identical to the original part.

Secondary Substitute (Discontinued Status):

CY74FCT373ATSOCT is functionally equivalent but carries a Discontinued at DiGi Electronics status. This part should be considered only when primary substitutes are unavailable, as future procurement may become problematic.

Output Current Consideration:

All Texas Instruments substitutes provide higher output current specifications (32mA high, 64mA low) compared to the original Renesas part (15mA high, 48mA low). This represents an enhancement in drive capability and does not create compatibility issues in standard applications.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT373ATSOC directly replace 74FCT373CTSOG8 in existing designs?

A: Yes. Both parts share identical logic type, circuit configuration, supply voltage range, propagation delay, operating temperature range, and 20-SOIC package specifications. The higher output current of the Texas Instruments part is a performance enhancement.

Q: What is the difference between CY74FCT373ATSOC and CY74FCT373TSOC?

A: Both parts are functionally equivalent with identical electrical specifications. The primary difference is packaging format: CY74FCT373ATSOC is supplied in Tube packaging, while CY74FCT373TSOC is also supplied in Tube packaging. Consult supplier documentation for specific packaging quantity and handling requirements.

Q: Why is CY74FCT373ATSOCT marked as discontinued?

A: CY74FCT373ATSOCT has been discontinued at DiGi Electronics, indicating reduced distributor support. While functionally equivalent, this part should not be selected for new designs or long-term production requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 Compliant certification, matching the environmental compliance status of the original 74FCT373CTSOG8.

Q: Does the 20-SOIC package remain unchanged across all parts?

A: Yes. All parts use the 20-SOIC (0.295", 7.50mm Width) surface mount package, ensuring PCB layout and assembly compatibility without design modification.