SN74ALS273NS

Flip Flops Overview

The SN74ALS273NS is an octal D-type flip-flop belonging to the Texas Instruments ALS logic series. It features eight positive-edge-triggered D inputs and corresponding non-inverting outputs, integrated with a master reset (clear) function. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 15 ns, a high-level output current of -2.6 mA, and a low-level output current of 24 mA. It is housed in a 20-pin PDIP package and supports through-hole mounting.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single package
• Positive-edge triggering mechanism for precise data capture on clock transitions
• Integrated master reset functionality to clear all outputs simultaneously
• Compatible TTL input and output levels ensuring interoperability with standard logic families

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Register storage elements in digital systems
• Buffering and latching applications for data lines
• General-purpose memory storage in microprocessor interfaces

Flip Flops Procurement Notes

Verify that the ordering suffix corresponds to the PDIP-20 through-hole package variant rather than surface-mount options like NSR or DWR. Confirm RoHS compliance status as specified in the official datasheet. Ensure the supplier provides documentation confirming the ALS logic family characteristics and operating temperature range of 0°C to +70°C. Cross-reference the manufacturer part number to distinguish from similar variants with different packaging or trailing zeros.

Flip Flops Selection Notes

Select this component when an octal register with through-hole mounting is required for ALS speed performance. Consider the 15 ns propagation delay and specific output drive capabilities (-2.6 mA high, 24 mA low) against circuit load requirements. Evaluate the need for a global clear function versus individual bit control. Compare against other 74-series families if lower power consumption or different voltage ranges are prioritized over the ALS switching speed.

Flip Flops Part Context

This device is part of the SN74ALS273 product line, which includes various packaging options such as SOIC and TSSOP. The NS suffix specifically denotes the plastic dual-in-line package suitable for prototyping or legacy board designs. It shares logical functionality with other octal flip-flops but is distinct in its physical form factor and pin-out compatibility with standard DIP sockets.

Flip Flops Replacement Considerations

SN74ALS273N

Flip Flops FAQ

What is the trigger type of the SN74ALS273NS?

The device utilizes positive-edge triggering, meaning data is captured at the rising edge of the clock signal.

Does the SN74ALS273NS include a reset function?

Yes, it features a master reset (clear) input that asynchronously clears all eight flip-flops to a low state.