CD74HCT273E

Overview

The CD74HCT273E is a high-speed CMOS logic octal D-type flip-flop manufactured by Texas Instruments. It features eight independent D-type flip-flops with positive-edge triggering and an asynchronous active-low master reset input. The device operates within a supply voltage range of 4.5 V to 5.5 V. It is housed in a 20-pin PDIP package and supports through-hole mounting. The component is designed for industrial temperature ranges, functioning reliably from -55°C to +125°C.

Feature Summary

• Contains eight independent D-type flip-flops with positive-edge clock triggering
• Includes an asynchronous active-low master reset input for immediate clearing
• Features non-inverting outputs compatible with standard CMOS logic families

Applications

• Octal data storage and buffering in digital systems
• Parallel-to-serial conversion circuits
• State machine implementation in control logic

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the package type matches the required 20-pin DIP configuration. Check RoHS compliance status and lead-free certification if required by project specifications. Ensure the operating temperature range meets the environmental constraints of the intended application.

Selection Notes

Select this component when an octal register with a global reset function is required in a 5V CMOS environment. It is suitable for designs needing high-speed operation with HCT-compatible inputs. Consider the PDIP package for prototyping or applications requiring through-hole assembly. Verify that the power supply voltage remains within the specified 4.5V to 5.5V range for optimal performance.

Part Context

This device belongs to the Texas Instruments CD74HCT series of high-speed CMOS logic components. It provides octal flip-flop functionality within a single integrated circuit. The HCT series ensures compatibility with standard TTL logic levels while offering CMOS noise immunity and low power consumption characteristics typical of modern logic families.

Replacement Considerations

SN74HCT273N