SN74LS173AD

Flip Flops Overview

The SN74LS173AD is a 4-bit D-type register manufactured by Texas Instruments, belonging to the LS logic series. It features three-state outputs and is designed for surface mount installation in SOIC packages. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports positive edge triggering. It includes a master reset function and functions as a single circuit with 16 pins. The component is rated for operation between 0°C and +70°C.

Flip Flops Feature Summary

• Contains four independent D-type flip-flops providing parallel data storage capabilities
• Features three-state outputs allowing direct connection to system buses without additional buffering
• Includes a master reset input that asynchronously clears all stored data upon activation

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Temporary data storage within digital processing systems
• Bus interface isolation and buffering applications

Flip Flops Procurement Notes

Verify the specific package variant against project requirements, as the SN74LS173A family includes through-hole and surface-mount options. Confirm lead times and availability status directly with authorized distributors, as production lifecycles may vary. Ensure compliance with RoHS directives if required by the target application environment. Cross-reference datasheet specifications for electrical characteristics before finalizing procurement decisions.

Flip Flops Selection Notes

Select this component when low power consumption is critical compared to standard TTL families. The LS series offers a balance of speed and power efficiency suitable for general-purpose logic applications. Consider the three-state output capability for bus-oriented designs requiring multiple devices to share common lines. Evaluate thermal performance within the specified operating temperature range for reliable long-term operation.

Flip Flops Part Context

This part belongs to the widely adopted 74xx logic family, specifically the Low-power Schottky (LS) sub-family. It serves as a fundamental building block for sequential logic design, enabling the creation of registers, counters, and shift registers. The SN74LS173AD provides a compact solution for integrating basic memory functions into larger digital systems using standard surface-mount technology.

Flip Flops Replacement Considerations

SN74LS173AN

Flip Flops FAQ

What type of clock triggering does the SN74LS173AD utilize?

The device utilizes positive edge triggering, meaning data is captured at the transition from low to high on the clock input.

How are the outputs configured in this register?

The outputs are configured as three-state, allowing them to be disabled to prevent driving the bus when not actively selected.