CD74ACT273EE4

Overview

The CD74ACT273EE4 is an octal D-type edge-triggered flip-flop manufactured by Texas Instruments. It features eight independent circuits within a single package, utilizing non-inverting outputs and single-ended inputs. The device operates on a supply voltage range of 4.5 V to 5.5 V. It exhibits a maximum propagation delay of 13.5 ns at 5 V with a 50 pF load. The component supports a main reset function and is housed in a 20-pin PDIP through-hole package. It 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 storage
• Edge-triggered operation synchronized with the rising clock edge
• Integrated main reset functionality for immediate state initialization
• Robust performance characteristics suitable for high-speed digital logic applications

Applications

• Parallel-to-serial data conversion circuits
• Register file implementations in microprocessor systems
• State machine control logic sequencing
• Buffering and latching operations in digital signal processing

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the PDIP-20 package type matches the target PCB footprint requirements. Check RoHS compliance status via the manufacturer's datasheet or certification documents. Ensure the operating temperature range aligns with the intended environmental conditions of the final assembly.

Selection Notes

Select this component when an octal register with fast switching speeds is required. The ACT series offers superior performance compared to standard HC or HCT logic families. Consider the 20-pin DIP package for prototyping or legacy board designs requiring through-hole mounting. Evaluate the 13.5 ns propagation delay against system timing constraints to ensure signal integrity.

Part Context

This device belongs to the Texas Instruments 74ACT family of advanced CMOS logic devices. The 74ACT273 series provides high-speed operation comparable to TTL while maintaining low power consumption typical of CMOS technology. The EE4 suffix indicates a specific manufacturing variant or revision within the broader CD74ACT273 product line designed for industrial and commercial applications.

Replacement Considerations

CD74ACT273M96

FAQ

What is the trigger mechanism for the CD74ACT273EE4?

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

Does the CD74ACT273EE4 include an output enable feature?

No, the standard CD74ACT273EE4 does not include an output enable pin; it features only a main reset function.