N74F573D,602 Equivalent & Substitute Parts

Part Overview

The N74F573D,602 is a D-Type Transparent Latch logic IC manufactured by NXP Semiconductors, featuring 1 channel with 8:8 circuit configuration and tri-state output capability. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The part operates within the 74F logic family standard, which defines its electrical and mechanical compatibility parameters.

Substiute Parts

N74F573D,602

NXP SemiconductorsIn Stock: 1238N74F573D,602 Datasheet

Current PartRFQ

SN74F573DW

Texas InstrumentsIn Stock: 2234SN74F573DW Datasheet

DirectRFQ

SN74F573DWR

Texas InstrumentsIn Stock: 2576SN74F573DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the N74F573D,602 are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

Electrical Compatibility Criteria:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Supply Voltage Range: 4.5V ~ 5.5V
• Independent Circuits: 1
• Operating Temperature Range: 0°C ~ 70°C

Mechanical Compatibility Criteria:

• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

All substitute parts listed below meet these core requirements. Variations in propagation delay time and output current characteristics remain within acceptable operational parameters for this logic family.

Parameter Comparison

Engineering Selection Recommendations

SN74F573DWR (Texas Instruments) - Recommended Primary Substitute

The SN74F573DWR is the manufacturer-recommended substitute for the obsolete N74F573D,602. This part carries Active product status, ensuring long-term availability and supply chain continuity. It meets all electrical and mechanical compatibility requirements, maintains ROHS3 compliance, and is supplied in Tape & Reel format suitable for automated assembly processes. The propagation delay specification of 8.6ns remains within acceptable operational parameters for 74F logic family applications.

SN74F573DW (Texas Instruments) - Secondary Substitute

The SN74F573DW provides equivalent electrical and mechanical functionality with identical performance characteristics to the SN74F573DWR. This part carries Last Time Buy status, indicating limited future availability. Selection of this variant should be based on specific packaging requirements, as it is supplied in Tube format rather than Tape & Reel.

Both Texas Instruments substitutes maintain full compliance with RoHS3 and REACH requirements, ensuring regulatory alignment with the original NXP component.

Frequently Asked Questions (FAQ)

Q: Can SN74F573DW and SN74F573DWR be used interchangeably with N74F573D,602?

A: Yes. Both Texas Instruments parts meet all electrical and mechanical compatibility criteria. The primary difference is packaging format: SN74F573DW uses Tube packaging, while SN74F573DWR uses Tape & Reel format. Selection depends on assembly process requirements.

Q: What is the significance of the propagation delay difference (4.6ns vs. 8.6ns)?

A: Both specifications fall within the 74F logic family standard operating parameters. The difference reflects manufacturing variations between NXP and Texas Instruments. For most applications, this variance does not affect system performance. Timing-critical applications should verify compatibility through circuit simulation or testing.

Q: Why is the N74F573D,602 marked as obsolete?

A: Obsolete status indicates the part is no longer manufactured by NXP Semiconductors. Existing inventory may be available through authorized distributors, but long-term procurement should transition to active alternatives such as SN74F573DWR.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both SN74F573DW and SN74F573DWR carry ROHS3 Compliant status, matching the original N74F573D,602 specification.

Q: What packaging format should I select for high-volume production?

A: SN74F573DWR in Tape & Reel format is optimized for automated pick-and-place assembly. SN74F573DW in Tube format is suitable for lower-volume or manual assembly processes.

Q: Are there any thermal or voltage derating considerations?

A: No. All substitute parts operate within the same supply voltage range (4.5V ~ 5.5V) and temperature range (0°C ~ 70°C) as the original component. Standard thermal management practices for 20-SOIC packages apply.