SN74ALS174DR

Flip Flops Overview

The SN74ALS174DR is a hex D-type positive-edge-triggered flip-flop manufactured by Texas Instruments. It features six independent D-type flip-flops with a master clear input, packaged in a 16-pin SOIC (SOP) format. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum clock frequency of 50 MHz. It has a load capacitance specification of 50 pF and an output current capability of 8 mA. The component is designed for operation across a temperature range of 0°C to 70°C.

Flip Flops Feature Summary

• Contains six independent D-type flip-flops triggered on the positive edge of the clock signal
• Includes a dedicated master clear input to reset all flip-flops simultaneously
• Utilizes standard TTL-compatible input levels for logic interfacing

Flip Flops Applications

• Parallel data storage and buffering in digital systems
• Shift register configurations for serial-to-parallel conversion
• State machine implementation in control logic circuits

Flip Flops Procurement Notes

Verify that the specific part number matches the ALS series requirements rather than HC or AS variants, as electrical characteristics differ significantly. Confirm the package type is the standard 16-SOIC variant. Ensure the application environment stays within the specified 0°C to 70°C operating temperature range. Check for RoHS compliance status if environmental regulations apply to the final assembly. Validate power supply stability within the 4.5 V to 5.5 V window to ensure proper logic threshold performance.

Flip Flops Selection Notes

Select this component when a high-speed hex flip-flop solution is required with TTL input compatibility. The ALS series offers faster propagation delays compared to standard LS logic but consumes more power. Consider the 16-SOIC package for surface-mount assembly needs. Evaluate the 50 MHz maximum frequency against system clock requirements. Ensure the design accounts for the specific output drive capabilities defined in the datasheet.

Flip Flops Part Context

This device belongs to the SN74ALS family of advanced low-power Schottky logic ICs from Texas Instruments. It is functionally similar to other hex D-type flip-flops like the SN74LS174 but with improved speed characteristics. The DR suffix indicates the surface-mount SOIC packaging option. It serves as a fundamental building block for sequential logic designs requiring multiple synchronized data storage elements.

Flip Flops Replacement Considerations

SN74ALS174N

Flip Flops FAQ

What is the function of the master clear input?

The master clear input asynchronously resets all six D-type flip-flops to a low state regardless of the clock or data inputs.

Is the output inverted or non-inverted?

The outputs are non-inverted, meaning the Q output follows the D input state upon the positive clock edge.