SN74ABT273DBR

Flip Flops Overview

The SN74ABT273DBR is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the ABT logic series. It features a positive-edge clock trigger and non-inverting outputs with a master reset function. The device operates within a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 150 MHz. Key electrical parameters include a propagation delay of 6.8ns at 5V with 50pF load, high-level output current of -32mA, and low-level output current of 64mA. Static current consumption is specified at 400µA, with an input capacitance of 7pF. It is housed in a 20-SSOP package (5.30mm wide) suitable for surface-mount installation.

Flip Flops Feature Summary

• Octal D-type flip-flop configuration with single positive-edge triggered clock input
• Non-inverting outputs providing direct data access without signal inversion
• Master reset functionality allowing synchronous clearing of all eight flip-flops

Flip Flops Applications

• High-speed parallel data storage and buffering in digital systems
• Interface circuits requiring registered data latching between logic blocks
• Memory address register implementations in microprocessor-based designs

Flip Flops Procurement Notes

Verify that the specific part number matches the required SSOP-20 package dimensions and pinout configuration before integration. Confirm compliance with RoHS3 standards and EAR99 classification for export purposes. Ensure the selected variant aligns with the intended operating temperature range of -40°C to +85°C. Cross-reference the datasheet specifications against system requirements for voltage levels and current drive capabilities to guarantee reliable operation under all expected load conditions.

Flip Flops Selection Notes

Select this component when designing systems requiring fast switching speeds up to 150 MHz with robust drive capability. The ABT series offers superior performance compared to standard TTL or CMOS alternatives, making it suitable for demanding applications. Consider the 20-SSOP package for space-constrained surface-mount layouts. Evaluate the 6.8ns propagation delay against system timing constraints to ensure adequate setup and hold times are met during data capture operations.

Flip Flops Part Context

This device is part of the SN74ABT273 family, which includes variants such as the through-hole SN74ABT273N. While sharing identical logical functions and electrical characteristics, the DBR variant specifically utilizes a surface-mount SSOP package. This distinction allows designers to choose the appropriate mounting technology based on PCB layout requirements without compromising the core functional specifications of the octal D-type flip-flop architecture.

Flip Flops Replacement Considerations

SN74ABT273N