CD74ACT374E

Overview

The CD74ACT374E is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the 74ACT logic series. It features positive edge triggering and non-inverting true outputs with tri-state capability. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It provides high-speed performance with a maximum clock frequency of 110MHz and a typical propagation delay of 11.2ns at 5V with a 50pF load. Output drive currents are rated at 24mA for both high and low states, while static current consumption is 8µA. It is housed in a 20-pin PDIP package suitable for through-hole mounting.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops within a single integrated circuit
• Positive edge-triggered operation synchronized with the clock signal input
• Tri-state output architecture enabling bus-oriented system designs
• CMOS construction ensuring low static power consumption

Applications

• High-speed data storage and register applications
• Bus-oriented memory systems requiring tri-state control
• Parallel-to-serial conversion circuits
• Timing and synchronization logic in digital systems

Procurement Notes

Verify manufacturer origin as Harris Corporation or authorized successor entities like Texas Instruments due to historical acquisitions. Confirm RoHS compliance status, as original Harris variants may not meet modern environmental standards. Check datasheet revisions for pinout consistency and electrical parameter updates. Ensure the 20-PDIP package matches PCB footprint requirements before procurement.

Selection Notes

Select this component when an octal D-type flip-flop with tri-state outputs is required for high-speed digital logic. The 74ACT series offers faster switching speeds compared to standard 74LS or 74HC families. Ensure the design supports the 4.5V to 5.5V operating range. Consider the 110MHz clock limit and 11.2ns propagation delay for timing analysis. Verify that through-hole mounting is compatible with the assembly process.

Part Context

The CD74ACT374E is part of the extensive 74ACT family of advanced CMOS logic devices produced by Harris Corporation. This series was designed to bridge the performance gap between older TTL technologies and newer CMOS solutions. The ACT family emphasizes high speed and low power consumption, making it suitable for demanding digital applications. Harris Corporation was a significant player in semiconductor manufacturing before industry consolidations.

Replacement Considerations

CD74ACT374N

FAQ

What is the trigger mechanism for the CD74ACT374E?

The device uses positive edge triggering, meaning data is captured at the rising edge of the clock signal.

Does the CD74ACT374E have inverted outputs?

No, the outputs are true (non-inverted) and feature tri-state capability.

What is the maximum operating voltage for this component?

The maximum supply voltage is 5.5V, with a minimum of 4.5V.