CD74ACT574E

Overview

The CD74ACT574E is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the ACT logic series. It features eight non-inverting D-type flip-flops with three-state outputs in a PDIP-20 package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 11.2 ns, a high-level output current of -24 mA, and a low-level output current of 24 mA. It supports TTL input levels and is designed for through-hole mounting.

Feature Summary

• Contains eight independent D-type edge-triggered flip-flops
• Provides three-state outputs for bus-oriented designs
• Accepts TTL-compatible input signals
• Non-inverting logic polarity

Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations
• Memory address latching systems
• General-purpose digital storage applications

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the component matches the required ACT logic family specifications and PDIP-20 through-hole package type. Check datasheets for updated environmental compliance status and operating temperature ranges before integration into final designs.

Selection Notes

Select this component when designing systems requiring fast switching speeds compatible with the ACT logic family. Ensure the application environment supports the specified 4.5 V to 5.5 V power supply range. Consider the through-hole packaging requirements for PCB layout and assembly processes compared to surface-mount alternatives.

Part Context

This component is part of the SN74ACT574 family of octal D-type flip-flops. It shares functional similarities with other variants like the SN74ACT574N but differs in package style. The ACT series offers performance improvements over standard 74LS logic while maintaining compatibility with TTL inputs.

Replacement Considerations

SN74ACT574N