74F373PC Equivalent & Substitute Parts

Part Overview

The 74F373PC is a D-Type Transparent Latch logic IC manufactured by onsemi, featuring an 8:8 circuit configuration with tri-state output capability. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

The 74F373PC operates within a supply voltage range of 4.5V to 5.5V and is housed in a 20-DIP package suitable for through-hole mounting applications. Its primary function as a transparent latch with independent tri-state outputs makes it critical for digital logic applications requiring data latching and bus interface capabilities.

Substiute Parts

74F373PC

onsemiIn Stock: 418274F373PC Datasheet

Current PartRFQ

SN74F373N

Texas InstrumentsIn Stock: 2409SN74F373N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F373PC is determined by strict equivalence across the following critical parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Supply Voltage Range: 4.5V ~ 5.5V
• Independent Circuits: 1
• Output Current Specifications: 3mA (High), 24mA (Low)
• Package / Case: 20-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The SN74F373N from Texas Instruments meets all these substitution criteria, maintaining functional and electrical equivalence with the 74F373PC across all specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The SN74F373N serves as the direct functional equivalent for the 74F373PC. Both components share identical logic architecture, electrical specifications, and physical packaging, enabling direct substitution in circuit applications.

The SN74F373N holds active product status with current manufacturing support from Texas Instruments, whereas the 74F373PC is classified as obsolete. The SN74F373N carries RoHS3 compliance certification, meeting current environmental and regulatory requirements for component procurement and system integration.

Propagation delay differs between the two parts (5.3ns for 74F373PC versus 8.6ns for SN74F373N). This variance remains within acceptable tolerances for standard logic applications operating at typical clock frequencies. System-level timing analysis is required only for applications with critical timing constraints below 8.6ns propagation delay specifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74F373N directly replace the 74F373PC without circuit modification?

A: Yes. Both components maintain identical pin configurations, electrical characteristics, and functional specifications across all critical parameters. Direct substitution is supported without circuit redesign.

Q: What is the significance of the propagation delay difference?

A: The SN74F373N exhibits 8.6ns propagation delay compared to 5.3ns for the 74F373PC. This difference is acceptable for standard logic applications. Applications with timing constraints tighter than 8.6ns require verification against system-level timing requirements.

Q: Are there packaging or mounting differences between these parts?

A: No. Both the 74F373PC and SN74F373N are housed in 20-DIP packages with 0.300" (7.62mm) pitch, suitable for through-hole mounting on standard PCB layouts.

Q: What compliance certifications apply to the SN74F373N?

A: The SN74F373N is RoHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory requirements for component procurement.

Q: Why is the 74F373PC classified as obsolete?

A: The 74F373PC has reached end-of-life status with onsemi. The SN74F373N from Texas Instruments remains in active production, providing continued availability and manufacturing support for this logic function.