SN74HCT273DBR

Flip Flops Overview

The SN74HCT273DBR is an octal D-type flip-flop from Texas Instruments' HCT logic family, housed in a 20-pin SSOP package. It features eight non-inverting outputs with a master clear function. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum clock frequency of 37 MHz. Key electrical parameters include a propagation delay of 34 ns, output currents of ±4 mA, and a static current of 8 µA. It functions across an industrial temperature range of -40°C to +85°C.

Flip Flops Feature Summary

• Contains eight independent D-type flip-flops for parallel data storage
• Includes a dedicated master clear input to reset all outputs simultaneously
• Provides TTL-compatible inputs for direct interfacing with TTL systems
• Delivers standard CMOS outputs with defined high and low current drive capabilities

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations
• Register file implementations
• Buffer memory applications

Flip Flops Procurement Notes

Verify the specific package variant against design requirements, as the DBR suffix indicates an SSOP-20 housing which differs from TSSOP or SOIC options. Confirm that the 4.5V minimum supply voltage aligns with the system's power rails. Ensure the 34ns propagation delay meets timing constraints for the target clock speed. Check RoHS compliance status if environmental regulations apply to the final assembly.

Flip Flops Selection Notes

Select this component when TTL-level input compatibility is required alongside CMOS output performance. The HCT series ensures noise immunity suitable for industrial environments. Consider the SSOP package dimensions for PCB layout constraints. Evaluate the 37MHz operating limit against the system's maximum clock rate. Compare against SN74HCT273PWR if a TSSOP footprint is preferred for the same logical functionality.

Flip Flops Part Context

This part belongs to the SN74HCT273 family of octal D-type flip-flops. It shares logical functionality with variants like SN74HCT273PW and SN74HCT273PWR but utilizes a distinct SSOP-20 package. The HCT technology bridges TTL inputs with CMOS outputs, making it suitable for mixed-signal logic designs requiring robust noise margins and standard interface levels.

Flip Flops Replacement Considerations

SN74HCT273PWR offers identical logic in a TSSOP-20 package. SN74HCT273PW provides the same function in a TSSOP-20 tube package. SN74HCS273PWR is a higher-speed alternative with Schmitt-trigger inputs and a wider voltage range.