74ACT563PC D-Type Transparent Latch Equivalent & Substitute Parts

Part Overview

The 74ACT563PC is a D-Type Transparent Latch logic IC manufactured by onsemi, featuring 1 channel with 8:8 circuit configuration and tri-state output capability. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-PDIP package suitable for through-hole mounting applications.

Substiute Parts

74ACT563PC

onsemiIn Stock: 71374ACT563PC Datasheet

Current PartRFQ

SN74ACT563N

Texas InstrumentsIn Stock: 1463SN74ACT563N Datasheet

Parametric EquivalentRFQ

SN74ACT573N

Texas InstrumentsIn Stock: 2082SN74ACT573N Datasheet

Parametric EquivalentRFQ

SN74ACT573NE4

Texas InstrumentsIn Stock: 874SN74ACT573NE4 Datasheet

Parametric EquivalentRFQ

TC74ACT573P(F)

Toshiba Semiconductor and StorageIn Stock: 1099TC74ACT573P(F) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ACT563PC is determined by strict adherence to the following parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage - Supply: 4.5V ~ 5.5V
• Independent Circuits: 1
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)

All substitute parts listed maintain these core electrical and mechanical parameters. Propagation delay and output current specifications are within acceptable tolerances for functional equivalence in D-Type transparent latch applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status)

SN74ACT563N (Texas Instruments) and SN74ACT573N (Texas Instruments) are the preferred substitutes, both maintaining active product status with full availability. SN74ACT563N provides direct base product number alignment with the original 74ACT563PC, while SN74ACT573N offers improved propagation delay performance (6ns versus 7ns). Both parts are RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

TC74ACT573P(F) (Toshiba Semiconductor and Storage) is an active alternative with RoHS compliance and equivalent electrical performance. This part provides geographic and supply chain diversification for procurement strategies.

Secondary Substitute (Discontinued Status)

SN74ACT573NE4 (Texas Instruments) is discontinued at DiGi Electronics but remains functionally equivalent. This part should be considered only when primary substitutes are unavailable and existing inventory is confirmed.

Compliance Considerations

All active substitute parts exceed the regulatory compliance profile of the obsolete 74ACT563PC. RoHS3 compliance and REACH unaffected status are standard across Texas Instruments and Toshiba offerings, supporting modern manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74ACT573N replace 74ACT563PC directly?

A: Yes. Both parts share identical logic type, circuit configuration, output type, supply voltage, operating temperature range, and 20-DIP package specifications. The faster propagation delay (6ns versus 7ns) of the SN74ACT573N is a performance improvement with no compatibility impact.

Q: What is the difference between SN74ACT563N and SN74ACT573N?

A: Both parts are functionally equivalent D-Type transparent latches with 8:8 configuration. The primary difference is the base product number designation (563 versus 573) and propagation delay specification (6.5ns versus 6ns). Both are direct substitutes for the 74ACT563PC.

Q: Is the TC74ACT573P(F) from Toshiba compatible with the original onsemi part?

A: Yes. The Toshiba part maintains all critical electrical and mechanical parameters: 8:8 circuit configuration, tri-state output, 4.5V to 5.5V supply voltage, -40°C to 85°C operating range, and 20-DIP package. Propagation delay is 6.3ns, which is within acceptable tolerance.

Q: Why is the 74ACT563PC marked as obsolete?

A: The 74ACT563PC is an older onsemi product. Active equivalents from Texas Instruments and Toshiba provide superior compliance certifications (RoHS3, REACH compliance) and continued manufacturing support.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts use 20-DIP (0.300", 7.62mm) through-hole packaging, identical to the original 74ACT563PC. Packaging variations exist only in supplier delivery format (tube versus bulk), which does not affect component functionality or PCB mounting.

Q: Can I use SN74ACT573NE4 if other substitutes are unavailable?

A: SN74ACT573NE4 is functionally equivalent but discontinued at DiGi Electronics. Verify existing inventory availability before design commitment. Active alternatives (SN74ACT573N or TC74ACT573P(F)) are recommended for new designs.