SN74HCT273NSR

Flip Flops Overview

The SN74HCT273NSR is an octal D-type flip-flop from the Texas Instruments HCT logic series, housed in a 20-pin SOIC package. It features positive-edge triggering and a master reset function with non-inverting outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 34 ns at 5 V, a clock frequency capability of 37 MHz, and output drive currents of ±4 mA. It supports surface-mount installation and functions across an operating temperature range of -40°C to +85°C.

Flip Flops Feature Summary

• Contains eight independent D-type flip-flops providing 8-bit data storage capability.
• Utilizes positive-edge triggering for precise timing control on clock transitions.
• Integrates a master reset input to asynchronously clear all flip-flop outputs simultaneously.
• Ensures TTL-compatible input levels through HCT logic family design.

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations for data expansion
• General-purpose digital memory storage elements
• Timing and synchronization logic in microprocessor systems

Flip Flops Procurement Notes

Verify that the ordered part number matches SN74HCT273NSR exactly, including the suffix indicating reel packaging. Confirm the manufacturer is Texas Instruments to ensure component authenticity. Check RoHS compliance status if environmental regulations apply to your assembly process. Ensure the receiving facility handles surface-mount devices appropriately to prevent physical damage during unpacking and storage.

Flip Flops Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS output characteristics. The HCT series ensures compatibility with standard 5V logic systems while offering lower power consumption than older LS variants. Consider the 20-SOIC package dimensions for PCB layout constraints. Verify that the 34 ns propagation delay meets the system's timing requirements for the intended application speed.

Flip Flops Part Context

This component belongs to the SN74HCT273 family of octal D-type flip-flops. It shares functional similarities with other members like SN74HCT273N but differs in package type and mounting style. The NSR variant specifically denotes the surface-mount SOIC configuration with tape-and-reel delivery. It serves as a fundamental building block for sequential logic designs requiring multiple bit storage within a single integrated circuit package.

Flip Flops Replacement Considerations

SN74HCT273NSRG4 is a verified equivalent part number representing the same functional device with updated manufacturing codes. SN74HCT273APWR offers identical logic functionality but utilizes a TSSOP-20 package instead of SOIC-20. Cross-reference pinouts carefully when substituting packages to ensure correct board layout compatibility.