CD74FCT843AM96G4 Equivalent & Substitute Parts

Part Overview

The CD74FCT843AM96G4 is a D-Type Transparent Latch logic IC with 9:9 circuit configuration and tri-state output capability, manufactured by Texas Instruments in a 24-SOIC surface mount package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates within a 4.75V to 5.25V supply voltage range with 9ns propagation delay and supports output currents of 15mA (high) and 48mA (low).

Substiute Parts

CD74FCT843AM96G4

Texas InstrumentsIn Stock: 741CD74FCT843AM96G4 Datasheet

Current PartRFQ

CD74FCT843AM

National SemiconductorIn Stock: 4163CD74FCT843AM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74FCT843AM96G4 is determined by strict equivalence across the following critical parameters:

• Logic Type: D-Type Transparent Latch configuration
• Circuit Configuration: 9:9 channel ratio
• Output Type: Tri-State capability
• Supply Voltage Range: 4.75V ~ 5.25V
• Propagation Delay: 9ns
• Output Current Specifications: 15mA (high) and 48mA (low)
• Package Type: 24-SOIC surface mount
• Operating Temperature Range: 0°C ~ 70°C

The CD74FCT843AM from National Semiconductor meets all specified electrical and mechanical parameters, establishing it as a direct functional equivalent suitable for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The CD74FCT843AM (National Semiconductor) is the designated manufacturer-recommended substitute for the obsolete CD74FCT843AM96G4. This substitute maintains identical electrical performance specifications and physical packaging, ensuring direct compatibility in existing circuit designs. The substitute part carries active product status, providing improved availability and supply chain continuity compared to the obsolete original part. Both parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity ratings, supporting deployment in standard manufacturing environments without additional handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the CD74FCT843AM directly replace the CD74FCT843AM96G4 in existing designs?

A: Yes. Both parts share identical logic type, circuit configuration, output characteristics, supply voltage range, propagation delay, output current specifications, and 24-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: What is the primary reason for substitution?

A: The CD74FCT843AM96G4 is classified as obsolete. The CD74FCT843AM maintains active product status, ensuring continued availability and manufacturing support.

Q: Are there package compatibility considerations?

A: Both parts use the 24-SOIC (0.295", 7.50mm Width) surface mount package. PCB footprints and assembly processes remain unchanged.

Q: Do compliance certifications differ between the parts?

A: Both parts are ROHS3 compliant with MSL Level 1 moisture sensitivity ratings. Compliance requirements for standard manufacturing environments are equivalent.

Q: What operating conditions apply to both parts?

A: Both parts operate across 0°C to 70°C temperature range with 4.75V to 5.25V supply voltage specifications. Operating conditions are identical.