SN74LS299DWR

Shift Registers Overview

The SN74LS299DWR is a universal shift/store register from the Texas Instruments SN74LS series. It features an 8-bit architecture with serial/parallel to serial/parallel counting order and two independent circuits. The device utilizes bipolar logic type with 3-state outputs and operates within a supply voltage range of 4.75 V to 5.25 V. It exhibits a propagation delay of 39 ns and functions at temperatures between 0°C and +70°C. The component is housed in a 20-SOIC surface-mount package.

Shift Registers Feature Summary

• Supports universal shift and store operations for data manipulation
• Provides tri-state outputs for bus-oriented applications
• Enables serial or parallel input/output configurations

Shift Registers Applications

• Data storage and transfer in digital systems
• Serial-to-parallel conversion tasks
• Parallel-to-serial conversion tasks
• General-purpose shift register applications

Shift Registers Procurement Notes

Verify the specific suffix 'DWR' indicates the tape-and-reel packaging format, distinct from tube-packaged variants like 'N'. Confirm RoHS compliance status through official manufacturer documentation as requirements may vary by production batch. Ensure the operating temperature range aligns with system thermal constraints before integration.

Shift Registers Selection Notes

Select this component when a low-power Schottky TTL shift register with tri-state outputs is required. It serves as a suitable alternative to standard LS variants requiring surface-mount assembly. Consider the 39 ns propagation delay and 5V supply compatibility against system timing and power specifications.

Shift Registers Part Context

This part belongs to the SN74LS family of logic integrated circuits manufactured by Texas Instruments. It is categorized under counter shift registers and shares functional similarities with other devices in the 74LS299 series, differing primarily in package style and manufacturing revisions.

Shift Registers Replacement Considerations

SN74LS299DR is a direct equivalent offering identical functionality in a comparable surface-mount package.