74F574PC Equivalent & Substitute Parts

Part Overview

The 74F574PC is a D-Type flip-flop logic integrated circuit featuring 1 element with 8-bit capacity and positive edge triggering. Manufactured by onsemi, this component operates at a clock frequency of 100 MHz with tri-state, non-inverted output configuration. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

74F574PC

onsemiIn Stock: 198574F574PC Datasheet

Current PartRFQ

SN74F574N

Texas InstrumentsIn Stock: 2072SN74F574N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F574PC is determined by strict equivalence across the following critical parameters:

• Logic Function: D-Type flip-flop with 1 element, 8-bit configuration
• Electrical Performance: 100 MHz clock frequency, 8.5 ns maximum propagation delay at 5V with 50pF load
• Output Configuration: Tri-state, non-inverted output
• Trigger Mechanism: Positive edge triggering
• Power Supply: 4.5V to 5.5V operating range
• Output Drive Capability: 3mA high, 24mA low
• Thermal Range: 0°C to 70°C operating temperature
• Physical Form Factor: 20-DIP through-hole package with 0.300" (7.62mm) body width

The SN74F574N from Texas Instruments meets all specified electrical and mechanical parameters, establishing it as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The SN74F574N from Texas Instruments is the direct substitute for the obsolete 74F574PC. The Texas Instruments part maintains active product status, ensuring long-term availability and supply chain continuity. The SN74F574N is RoHS3 compliant, meeting current environmental and regulatory requirements. Both components share identical electrical specifications, pin configuration, and physical packaging, enabling direct replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the SN74F574N replace the 74F574PC in existing designs? A: Yes. The SN74F574N is electrically and mechanically equivalent to the 74F574PC. Both components feature identical clock frequency, propagation delay, output drive capability, supply voltage range, and 20-DIP package dimensions. Direct substitution is possible without design changes.

Q: Are there differences in packaging between these parts? A: The 74F574PC is supplied in standard packaging, while the SN74F574N is supplied in tube packaging. Both use the 20-DIP (0.300", 7.62mm) form factor with identical pin assignments and mechanical dimensions. Packaging format does not affect electrical performance or board-level compatibility.

Q: What is the significance of the product status difference? A: The 74F574PC is classified as obsolete, indicating onsemi has discontinued production. The SN74F574N maintains active status from Texas Instruments, ensuring continued availability, technical support, and compliance with current industry standards. For new designs and long-term procurement, the SN74F574N is the recommended choice.

Q: Are there compliance differences between the two parts? A: The SN74F574N is RoHS3 compliant, meeting current environmental regulations. Both parts are REACH unaffected and carry EAR99 ECCN classification. The SN74F574N's active status ensures ongoing compliance with evolving regulatory requirements.

Q: What are the key electrical parameters that define substitution compatibility? A: Substitution is based on matching clock frequency (100 MHz), propagation delay (8.5 ns at 5V, 50pF), output configuration (tri-state, non-inverted), trigger mechanism (positive edge), supply voltage range (4.5V to 5.5V), and output drive specifications (3mA high, 24mA low). The SN74F574N meets all these parameters identically.