SN74ACT563DW Equivalent & Substitute Parts

Part Overview

The SN74ACT563DW is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring a single channel 8:8 configuration with tri-state output in a 20-SOIC surface mount package. This component is classified as Last Time Buy, indicating limited availability from the original manufacturer. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this logic function.

Substiute Parts

SN74ACT563DW

Texas InstrumentsIn Stock: 1647SN74ACT563DW Datasheet

Current PartRFQ

SN74ACT563DWR

Texas InstrumentsIn Stock: 3766SN74ACT563DWR Datasheet

MFR RecommendedRFQ

SN74ACT573DW

Texas InstrumentsIn Stock: 2818SN74ACT573DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74ACT563DW are identified based on strict electrical and mechanical parameter matching within the 74ACT logic family. The substitution criteria are:

Primary Substitution Criteria:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage Supply Range: 4.5V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 20-SOIC surface mount
• Output Current Capability: 24mA minimum (High and Low)

Acceptable Parameter Variance:

• Propagation Delay Time: Within 6ns to 6.5ns range (minor performance variation acceptable)
• Packaging Format: Tube or Tape & Reel (TR) formats are interchangeable for the same package type

Parts meeting these criteria are classified as direct substitutes and can be used interchangeably in circuit designs without modification.

Parameter Comparison

Engineering Selection Recommendations

SN74ACT563DWR (Manufacturer Recommended Substitute): This part is the preferred substitute for the SN74ACT563DW. It maintains identical electrical specifications and package configuration while offering Active product status, ensuring long-term availability. The only difference is the packaging format (Tape & Reel versus Tube), which does not affect electrical performance or mechanical compatibility. This part is suitable for new designs and production applications requiring assured supply continuity.

SN74ACT573DW (Parametric Equivalent): This part meets all core electrical and mechanical substitution criteria with a marginally improved propagation delay time of 6ns compared to 6.5ns. However, its Discontinued status at DiGi Electronics indicates limited future availability. This part may be considered for applications where existing inventory is available, but it is not recommended for new production commitments without confirming alternative supply sources.

Supply Chain Considerations: For applications currently using SN74ACT563DW, transition to SN74ACT563DWR is recommended to maintain design compatibility while securing active product status. Both parts are ROHS3 compliant and carry identical environmental certifications, ensuring regulatory compliance across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can SN74ACT563DWR be used as a direct replacement for SN74ACT563DW? A: Yes. SN74ACT563DWR is a direct electrical and mechanical substitute. Both parts share identical logic type, circuit configuration, output characteristics, voltage supply range, propagation delay, output current capability, operating temperature range, and 20-SOIC package specifications. The only difference is packaging format (Tape & Reel versus Tube), which does not affect circuit performance or PCB assembly compatibility.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube and Tape & Reel are packaging formats for component delivery and handling. Tube packaging is used for manual or lower-volume assembly, while Tape & Reel is optimized for automated pick-and-place assembly. Both formats contain the same component in the same 20-SOIC package. The choice between formats depends on assembly process requirements, not electrical performance.

Q: Is SN74ACT573DW a suitable substitute for SN74ACT563DW? A: SN74ACT573DW meets all core electrical and mechanical parameters for substitution. However, its Discontinued status at DiGi Electronics limits future availability. It may be used if existing inventory is available and supply continuity is not a concern. For new designs or production applications, SN74ACT563DWR is the recommended choice.

Q: What parameters must match for a part to be considered a substitute? A: Critical matching parameters are logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (Tri-State), voltage supply range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), output current capability (24mA minimum), and 20-SOIC package type. Propagation delay time may vary within the 6ns to 6.5ns range without affecting functional compatibility.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts (SN74ACT563DWR and SN74ACT573DW) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the main part SN74ACT563DW.

Q: Can these parts be used in high-temperature applications? A: All listed parts support the operating temperature range of -40°C ~ 85°C. Applications requiring operation outside this range require alternative component selection.