74ABT373CPC Equivalent & Substitute Parts

Part Overview

The 74ABT373CPC 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 suitable substitute parts essential for ongoing system support and new design implementations. The part operates within a 4.5V to 5.5V supply voltage range and is housed in a 20-DIP package suitable for through-hole mounting applications.

Substiute Parts

74ABT373CPC

onsemiIn Stock: 78374ABT373CPC Datasheet

Current PartRFQ

SN74ABT373N

Texas InstrumentsIn Stock: 1883SN74ABT373N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ABT373CPC are identified based on the following critical parameters that determine functional and mechanical compatibility:

• Logic Type & Circuit Configuration: D-Type Transparent Latch with 8:8 circuit must be maintained
• Output Type: Tri-State output capability is required
• Supply Voltage Range: 4.5V ~ 5.5V compatibility is mandatory
• Package / Case: 20-DIP (0.300", 7.62mm) form factor ensures mechanical fit
• Mounting Type: Through-hole mounting compatibility
• Operating Temperature Range: -40°C ~ 85°C operational envelope

The SN74ABT373N from Texas Instruments meets all these critical parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The SN74ABT373N from Texas Instruments is the qualified substitute for the obsolete 74ABT373CPC. This substitution is supported by:

• Functional Equivalence: Identical logic type, circuit configuration, and output characteristics
• Electrical Compatibility: Matching supply voltage range, output current ratings, and propagation delay specifications within acceptable engineering tolerances
• Mechanical Compatibility: Identical 20-DIP package and through-hole mounting configuration
• Product Status: The SN74ABT373N maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both parts share identical REACH and ECCN classifications, with the substitute maintaining ROHS3 compliance

The propagation delay difference (2.7ns vs. 4.6ns) falls within typical design margins for D-Type latch applications and does not preclude substitution in standard logic circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can the SN74ABT373N be used as a direct replacement for the 74ABT373CPC?

A: Yes. Both parts share identical logic type, circuit configuration, supply voltage range, output characteristics, and 20-DIP package specifications. The SN74ABT373N is electrically and mechanically compatible for direct substitution.

Q: What is the significance of the propagation delay difference between these parts?

A: The 74ABT373CPC specifies 2.7ns propagation delay while the SN74ABT373N specifies 4.6ns. This difference is within normal manufacturing variation for the 74ABT logic family and does not affect compatibility in standard latch applications. System timing analysis should confirm acceptability for specific circuit requirements.

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

A: Both parts maintain identical REACH and ECCN classifications. The SN74ABT373N includes ROHS3 compliance certification, providing additional regulatory alignment for modern manufacturing environments.

Q: Why is the 74ABT373CPC classified as obsolete?

A: Obsolete status indicates the part is no longer in active production by onsemi. The SN74ABT373N from Texas Instruments provides continued access to equivalent functionality through an active product line.

Q: Are the packaging specifications identical?

A: Yes. Both parts use 20-DIP (0.300", 7.62mm) packages with through-hole mounting, ensuring identical PCB footprint and assembly compatibility.