CD74AC273E

Overview

The CD74AC273E is an octal D-type flip-flop from the Texas Instruments AC logic series, housed in a 20-pin PDIP package. It features eight non-inverting outputs and includes a master reset function. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports through-hole mounting. Key electrical specifications include a propagation delay of 169 ns, with high-level output current of -24 mA and low-level output current of 24 mA. It functions reliably across an extended temperature range from -55°C to +125°C.

Feature Summary

• Contains eight independent D-type flip-flops for parallel data storage
• Includes a dedicated master reset input to clear all outputs simultaneously
• Provides non-inverting outputs compatible with CMOS logic standards

Applications

• Octal data register applications requiring parallel-to-serial conversion
• Industrial control systems operating in extreme temperature environments
• General-purpose digital logic circuits utilizing wide voltage tolerance

Procurement Notes

Verify the specific package type and lead time requirements against current distributor availability before ordering. Confirm that the 20-pin PDIP form factor aligns with your PCB footprint design. Ensure the component meets RoHS compliance standards required for your manufacturing process. Check for any specific handling instructions related to the through-hole installation method.

Selection Notes

Select this component when an octal configuration with a global reset is necessary. The AC series offers a balance of speed and power consumption suitable for general logic applications. Consider the wide operating voltage range if the system requires flexibility between 1.5 V and 5.5 V supplies. The PDIP package is appropriate for prototyping or applications requiring manual insertion.

Part Context

This part belongs to the CD74AC273 family of octal D-type flip-flops manufactured by Texas Instruments. It is designed for use in various digital logic applications where multiple bits of data need to be stored and synchronized. The AC series is known for its compatibility with standard CMOS inputs and outputs, making it versatile for integration into broader logic systems.

Replacement Considerations

Check for direct pin-compatible alternatives within the same logic family if supply constraints exist. Verify that any substitute maintains the same octal configuration and reset functionality. Ensure the replacement component supports the required operating temperature range and voltage specifications.