CY74FCT245ATPCG4 Equivalent & Substitute Parts

Part Overview

The CY74FCT245ATPCG4 is a non-inverting transceiver logic integrated circuit manufactured by Texas Instruments, designed for 8-bit bidirectional data transfer with 3-state output capability. This component operates within a 4.75V to 5.25V supply voltage range and is rated for industrial temperature environments from -40°C to 85°C. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing system maintenance and new designs requiring this functional specification.

Substiute Parts

CY74FCT245ATPCG4

Texas InstrumentsIn Stock: 787CY74FCT245ATPCG4 Datasheet

Current PartRFQ

CY74FCT245ATPC

Texas InstrumentsIn Stock: 2832CY74FCT245ATPC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CY74FCT245ATPCG4 is determined by strict equivalence across the following critical parameters:

• Logic type and functional architecture (Transceiver, Non-Inverting)
• Element and bit configuration (1 Element, 8 Bits per Element)
• Output control method (3-State)
• Output current specifications (32mA high, 64mA low)
• Supply voltage range (4.75V ~ 5.25V)
• Operating temperature range (-40°C ~ 85°C)
• Physical package form factor (20-DIP, 0.300" pitch)
• Mounting technology (Through Hole)
• Regulatory compliance (ROHS3, REACH Unaffected)

Only parts meeting all these criteria are considered functional equivalents. Packaging format variations (tube vs. other formats) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CY74FCT245ATPC serves as the direct functional equivalent to the CY74FCT245ATPCG4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, thermal ratings, and physical packaging. The primary distinction is product status: the CY74FCT245ATPCG4 is discontinued, while the CY74FCT245ATPC remains in active production with confirmed inventory availability (2732 units in stock). Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. Selection of the CY74FCT245ATPC eliminates obsolescence risk and ensures long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the CY74FCT245ATPC be used as a direct replacement for the CY74FCT245ATPCG4?

A: Yes. Both parts are electrically and mechanically identical. They share the same logic architecture, output specifications, voltage requirements, temperature range, and 20-DIP package form factor. The only difference is product status and packaging format.

Q: What is the significance of the packaging designation difference (ATPCG4 vs. ATPC)?

A: The suffix designates packaging format. ATPCG4 indicates a specific packaging configuration that is now discontinued. ATPC represents the active equivalent with standard tube packaging. The electrical and mechanical specifications remain unchanged.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical ROHS3 compliance and REACH unaffected status. They are suitable for the same regulatory environments and applications.

Q: What is the pin configuration compatibility?

A: Both parts use the 20-DIP package with 0.300" (7.62mm) pitch. Pin assignments and functional pinout are identical, enabling direct socket substitution without circuit modification.

Q: Why is the CY74FCT245ATPCG4 discontinued?

A: The main part has been discontinued at DiGi Electronics. The CY74FCT245ATPC remains the active production equivalent and is the recommended selection for new designs and replacement applications.