CD54ACT574F3A

Overview

The CD54ACT574F3A is a non-inverting octal D-type flip-flop manufactured by Texas Instruments. It features eight positive edge-triggered D-type flip-flops with three-state outputs, housed in a 20-pin Ceramic Dual In-Line Package (CDIP). The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an extended industrial temperature range from -55°C to +125°C. Designed for high-speed applications, it utilizes Advanced BiCMOS technology to achieve low power consumption while maintaining fast propagation delays.

Feature Summary

• Octal configuration providing eight independent positive edge-triggered D-type flip-flops
• Three-state outputs allowing direct connection to bus systems
• Advanced BiCMOS technology ensuring low power dissipation
• Extended temperature range suitable for harsh environments

Applications

• High-performance register files
• Bus-oriented memory mapping
• Clock delay modules
• Sample-and-hold circuits

Procurement Notes

Verify the specific ordering suffix F3A confirms the ceramic dual in-line package and military-grade temperature rating. Confirm RoHS compliance status as historical data may vary. Ensure the supplier provides traceable documentation for the CDIP-20 form factor. Validate that the component matches the active status indicated in official manufacturer catalogs before finalizing procurement orders.

Selection Notes

Select this component when a wide operating temperature range and radiation tolerance are required. The ceramic package offers superior reliability compared to plastic variants for aerospace or defense projects. Consider the three-state output capability for efficient bus sharing. Evaluate the power consumption benefits of Advanced BiCMOS technology against standard TTL alternatives for battery-sensitive designs.

Part Context

This part belongs to the SN54/CD54 series of logic devices designed for military and aerospace applications. It is functionally similar to commercial grade parts but offers enhanced environmental stability. The ACT series represents a transition to advanced CMOS technology, providing speed improvements over older LS families while maintaining pin compatibility.

Replacement Considerations

SN54ACT574JW