SN74LS673N

Shift Registers Overview

The SN74LS673N is a high-speed silicon-gate LS TTL octal D-type flip-flop with three-state outputs. It features independent clock inputs for each pair of flip-flops, allowing flexible data latching configurations. The device includes an active-low master reset input to clear all outputs asynchronously. Designed for standard 16-pin DIP packaging, it operates within the industrial temperature range and supports direct interface with microprocessors and memory systems through its tri-state capability.

Shift Registers Feature Summary

• Octal configuration provides eight independent D-type storage elements in a single package
• Three-state outputs enable direct bus interfacing without external buffer logic
• Dual clock architecture allows selective latching of data pairs via separate control signals
• Asynchronous master reset ensures immediate output clearing regardless of clock state

Shift Registers Applications

• Microprocessor address and data bus buffering
• High-speed digital signal processing registers
• Memory system interface circuits
• Parallel-to-serial conversion modules

Shift Registers Procurement Notes

Verify the 'N' suffix confirms the plastic dual-in-line package variant. Confirm the manufacturer designation matches Texas Instruments specifications. Check date codes and lot numbers against current quality standards. Ensure compatibility with existing board layout constraints for 16-pin DIP footprint. Validate supply chain authenticity through authorized distribution channels only.

Shift Registers Selection Notes

Select this component when requiring multiple synchronized storage elements with bus isolation capabilities. Consider the LS TTL speed-power trade-off for legacy system compatibility. Evaluate power dissipation requirements relative to total device count in the design. Verify voltage levels match the target system logic family specifications before integration.

Shift Registers Part Context

This part belongs to the Texas Instruments SN74xx series of logic devices, specifically the Low-power Schottky (LS) subset. It serves as a fundamental building block for sequential logic circuits requiring parallel data retention. The SN74LS673N complements other LS TTL components like shift registers and counters in complex digital designs.

Shift Registers Replacement Considerations

Direct substitutes include the SN54LS673J for military temperature ranges. Alternative packages such as SOIC or PLCC variants may require adapter considerations. Verify pinout compatibility when replacing with equivalent parts from other manufacturers.