74HC573D,652 D-Type Transparent Latch Equivalent & Substitute Parts

Part Overview

The 74HC573D,652 is a D-Type Transparent Latch logic IC manufactured by Nexperia USA Inc., featuring an 8:8 circuit configuration with tri-state output in a 20-SO surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The 74HC573 series represents a standard logic latch function widely available across multiple manufacturers with compatible electrical and mechanical specifications.

Substiute Parts

74HC573D,652

Nexperia USA Inc.In Stock: 76474HC573D,652 Datasheet

Current PartRFQ

74HC573D,653

Nexperia USA Inc.In Stock: 1242074HC573D,653 Datasheet

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CD74HC573M

Harris CorporationIn Stock: 68697CD74HC573M Datasheet

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CD74HC573M96

Texas InstrumentsIn Stock: 16103CD74HC573M96 Datasheet

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MC74HC573ADWG

onsemiIn Stock: 972MC74HC573ADWG Datasheet

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MC74HC573ADWR2G

onsemiIn Stock: 6929MC74HC573ADWR2G Datasheet

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MM74HC573WM

onsemiIn Stock: 1441MM74HC573WM Datasheet

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MM74HC573WMX

onsemiIn Stock: 1396MM74HC573WMX Datasheet

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SN74HC573ADWR

Texas InstrumentsIn Stock: 2881SN74HC573ADWR Datasheet

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SN74HC573AQDWRQ1

Texas InstrumentsIn Stock: 3228SN74HC573AQDWRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC573D,652 is determined by the following critical parameters:

• Logic Function: D-Type Transparent Latch with 8:8 circuit configuration and tri-state output
• Electrical Compatibility: Supply voltage range 2V to 6V, output current 7.8mA (high and low)
• Package Compatibility: 20-SOIC surface mount package (0.295", 7.50mm width)
• Mechanical Compatibility: Surface mount technology with identical pin configuration

Substitute parts maintain the same base product number (74HC573) across different manufacturers and packaging options. Variations in propagation delay (14ns to 30ns) and operating temperature ranges (-40°C to 125°C or -55°C to 125°C) are within acceptable tolerance for standard logic applications. RoHS compliance status and moisture sensitivity levels differ among substitutes but do not affect functional interchangeability in equivalent circuit positions.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): 74HC573D,653 from Nexperia USA Inc. is the direct equivalent with identical electrical parameters and active product status, providing the most straightforward replacement path for the obsolete 74HC573D,652.

Active Alternatives with Extended Temperature Range: CD74HC573M96 (Texas Instruments) and MC74HC573ADWG (onsemi) offer active product status with extended operating temperature to -55°C, suitable for applications requiring wider temperature coverage. Both are ROHS3 compliant.

High-Speed Variants: MM74HC573WM and MM74HC573WMX (onsemi) provide the fastest propagation delay at 15ns, matching the original part's performance characteristics. These are available in active status with ROHS3 compliance.

Automotive-Grade Option: SN74HC573AQDWRQ1 (Texas Instruments) includes AEC-Q100 automotive qualification and extended temperature range (-40°C to 125°C), suitable for automotive and harsh environment applications.

Legacy Consideration: CD74HC573M (Harris Corporation) is obsolete and RoHS non-compliant; selection should prioritize active, ROHS3-compliant alternatives.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74HC573D,652 with 74HC573D,653? A: Yes. Both parts share identical electrical specifications, package type, and pin configuration. The primary difference is product status (obsolete vs. active) and packaging format. 74HC573D,653 is the recommended direct replacement.

Q: What is the difference between propagation delay variations (14ns to 30ns)? A: Propagation delay represents the time required for output changes following input transitions. All substitute parts operate within standard logic timing specifications. Selection depends on application timing requirements. Faster variants (14–15ns) are suitable for time-critical applications; slower variants (26–30ns) are acceptable for general-purpose logic functions.

Q: Are all substitute parts pin-compatible? A: Yes. All listed substitutes maintain the 20-SOIC package format with identical pin configuration, enabling direct PCB-level replacement without layout modifications.

Q: What does ROHS3 compliance mean for substitution? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances directives. For new designs and procurement, ROHS3-compliant parts are required in most jurisdictions. CD74HC573M is non-compliant and should be avoided for new applications.

Q: Can I use parts with different operating temperature ranges interchangeably? A: Operating temperature range affects part suitability for specific environments. Parts rated -40°C to 85°C are suitable for commercial/industrial applications. Parts rated -55°C to 125°C or -40°C to 125°C provide extended range for harsh environments or automotive applications. Select based on your application's thermal requirements.

Q: What is the difference between packaging options (Tube, Cut Tape, Tape & Reel)? A: Packaging affects procurement and assembly processes. Tube packaging is for manual handling; Cut Tape and Digi-Reel are for automated pick-and-place assembly. Electrical and mechanical specifications remain identical across packaging formats.

Q: Is SN74HC573AQDWRQ1 suitable for automotive applications? A: Yes. SN74HC573AQDWRQ1 carries AEC-Q100 automotive qualification and is specifically designed for automotive-grade applications with extended temperature range (-40°C to 125°C).