CD74AC374E

Overview

The CD74AC374E is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the AC logic series. It features eight independent circuits with non-inverting inputs and three-state outputs. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a propagation delay of 135 ns, high-level output current of -24 mA, and low-level output current of 24 mA. It supports through-hole mounting in a PDIP-20 package and functions reliably across an extended temperature range from -55 °C to +125 °C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops for parallel data handling
• Three-state outputs enable direct bus line connections without external drivers
• CMOS input structure ensures compatibility with standard digital logic interfaces
• Extended industrial temperature rating supports operation in harsh environmental conditions

Applications

• Parallel-to-serial data conversion circuits
• Register storage within microprocessor-based systems
• Buffering applications on system buses
• Timing control logic in digital state machines

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the PDIP-20 package integrity and pin alignment prior to installation. Ensure that the supply voltage remains strictly within the 2 V to 6 V operational limits to prevent device damage. Review the latest Texas Instruments documentation for any product change notifications or reliability updates relevant to this specific part number before finalizing procurement plans.

Selection Notes

Select the CD74AC374E when an octal storage element with three-state capability is required. This component is suitable for designs needing wide voltage operation between 2 V and 6 V. Consider the 135 ns propagation delay for timing analysis in slower speed applications. The through-hole PDIP-20 package is appropriate for prototyping or legacy board layouts requiring manual assembly or standard wave soldering processes.

Part Context

This component belongs to the Texas Instruments CD74AC family of advanced CMOS logic devices. It serves as a functional equivalent to industry-standard octal D-type flip-flops. The device integrates eight edge-triggered storage elements into a single integrated circuit. Its design focuses on providing reliable data retention and controlled output states for complex digital logic architectures.

Replacement Considerations

Public confirmed substitute part numbers include SN74AC374N.