74FCT245CTQG Equivalent & Substitute Parts

Part Overview

The 74FCT245CTQG is a non-inverting transceiver logic IC manufactured by Renesas Electronics Corporation, configured as a single element with 8 bits per element and 3-state output capability. This component operates within the 4.75V to 5.25V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently in Last Time Buy status, indicating end-of-life production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring this transceiver functionality.

Substiute Parts

74FCT245CTQG

Renesas Electronics CorporationIn Stock: 209674FCT245CTQG Datasheet

Current PartRFQ

74FCT245ATQG

Renesas Electronics CorporationIn Stock: 70374FCT245ATQG Datasheet

Parametric EquivalentRFQ

CY74FCT2245ATPWR

Texas InstrumentsIn Stock: 19292CY74FCT2245ATPWR Datasheet

MFR RecommendedRFQ

CY74FCT2245ATQCT

Texas InstrumentsIn Stock: 6943CY74FCT2245ATQCT Datasheet

MFR RecommendedRFQ

CY74FCT2245CTQCT

Texas InstrumentsIn Stock: 1717CY74FCT2245CTQCT Datasheet

MFR RecommendedRFQ

CY74FCT2245TQCT

Texas InstrumentsIn Stock: 5211CY74FCT2245TQCT Datasheet

MFR RecommendedRFQ

CY74FCT245ATQCT

Texas InstrumentsIn Stock: 2353CY74FCT245ATQCT Datasheet

MFR RecommendedRFQ

CY74FCT245CTQCT

Texas InstrumentsIn Stock: 3891CY74FCT245CTQCT Datasheet

MFR RecommendedRFQ

CY74FCT245DTQCT

Texas InstrumentsIn Stock: 4110CY74FCT245DTQCT Datasheet

MFR RecommendedRFQ

CY74FCT245TQCT

Texas InstrumentsIn Stock: 1656CY74FCT245TQCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74FCT245CTQG is determined by strict equivalence across the following critical parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: -40°C ~ 85°C (TA)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories: parametric equivalents (identical electrical and mechanical specifications) and manufacturer-recommended alternatives (functionally equivalent with minor variations in output current or packaging format).

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the 74FCT245CTQG, the 74FCT245ATQG from Renesas Electronics is the primary parametric equivalent, offering identical electrical specifications and package configuration while maintaining Active product status.

For applications requiring active product availability with extended supply assurance, Texas Instruments CY74FCT2245ATQCT and CY74FCT2245CTQCT are suitable alternatives. These parts maintain identical logic functionality, voltage supply range, and operating temperature specifications. The CY74FCT2245TQCT variant provides MSL 1 (Unlimited) moisture sensitivity rating, equivalent to the original part.

Parts designated as Discontinued at DiGi Electronics, such as CY74FCT245DTQCT, should be avoided for new designs or long-term production commitments.

The CY74FCT2245ATPWR variant uses a 20-TSSOP package (0.173", 4.40mm width) instead of the standard 20-SSOP, requiring PCB layout modification and is suitable only when package footprint change is acceptable.

All recommended substitutes maintain ROHS3 compliance and are suitable for the -40°C to 85°C operating temperature range specified for the original part.

Frequently Asked Questions (FAQ)

Q: Can the 74FCT245ATQG directly replace the 74FCT245CTQG?

A: Yes. The 74FCT245ATQG is a parametric equivalent with identical output current specifications (15mA, 64mA), package configuration (20-SSOP), and operating parameters. The primary difference is product status: 74FCT245ATQG is Active, while 74FCT245CTQG is Last Time Buy.

Q: What is the difference between CY74FCT2245ATQCT and CY74FCT245ATQCT?

A: CY74FCT2245ATQCT has output current specifications of 15mA (high) and 12mA (low), while CY74FCT245ATQCT has 32mA (high) and 64mA (low). Both use the 20-SSOP package and are manufactured by Texas Instruments. Selection depends on output current requirements for your application.

Q: Why does CY74FCT2245ATPWR have a different package size?

A: The CY74FCT2245ATPWR uses a 20-TSSOP package (0.173", 4.40mm width) compared to the standard 20-SSOP (0.154", 3.90mm width). This package variant requires different PCB footprint design and should only be selected if layout modifications are feasible.

Q: What does MSL 2 (1 Year) mean compared to MSL 1 (Unlimited)?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture absorption. MSL 1 (Unlimited) allows indefinite shelf storage without moisture control. MSL 2 (1 Year) requires moisture control measures and limits shelf life to one year from the date of manufacture. For applications with extended storage requirements, MSL 1 parts are preferred.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, consistent with the original 74FCT245CTQG specification.

Q: Can I use CY74FCT245DTQCT as a substitute?

A: CY74FCT245DTQCT is listed as Discontinued at DiGi Electronics and should not be selected for new designs or production commitments requiring long-term availability assurance.