SN74LS273NE4

Flip Flops Overview

The SN74LS273NE4 is an octal D-type flip-flop with clear, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 27 ns at 5 V with 15 pF load. The device supports a clock frequency of up to 40 MHz and provides low-level output current drive of 8 mA. It is housed in a 20-pin PDIP package and functions within a temperature range of 0°C to +70°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops with positive-edge triggering.
• Includes a master reset (clear) function for immediate state initialization.
• Non-inverting outputs ensure data integrity from input to output stages.

Flip Flops Applications

• Data storage and buffering in digital logic circuits
• Address latching for microprocessor systems
• Parallel-to-serial data conversion interfaces

Flip Flops Procurement Notes

Verify the specific ordering suffix NE4 against the manufacturer's official datasheet to confirm compliance with RoHS directives and environmental standards. Ensure the procurement channel sources genuine Texas Instruments components to guarantee electrical parameter accuracy and long-term reliability. Cross-reference the package type and pinout configuration with system design requirements before finalizing purchase orders.

Flip Flops Selection Notes

Select this component when an octal storage solution with a dedicated clear input is required for TTL-compatible logic levels. The SN74LS273NE4 is suitable for applications demanding positive-edge triggered data capture with non-inverting output characteristics. Consider the 20-pin PDIP form factor for through-hole mounting constraints and verify that the 8 mA sink current capability meets the load requirements of the connected circuitry.

Flip Flops Part Context

This part belongs to the standard 74LS series of logic integrated circuits, widely utilized in general-purpose digital electronics. The SN74LS273 variant specifically addresses the need for multi-bit storage elements within parallel data paths. Its design aligns with industry-standard pinouts and logical functions, facilitating integration into legacy and modern mixed-signal systems requiring reliable octal flip-flop operations.

Flip Flops Replacement Considerations

Direct substitutes include the SN74LS273N and SN74LS273DR, which share identical logical functionality and pin configurations. Verify compatibility regarding package dimensions and thermal characteristics when transitioning between DIP and SOIC formats.

Flip Flops FAQ

What is the trigger mechanism of the SN74LS273NE4?

The device utilizes a positive-edge trigger mechanism, updating its output state on the rising edge of the clock signal.

Does the SN74LS273NE4 have an active-low clear input?

Yes, the component includes a master reset (clear) input that forces all outputs to a low state when activated.