SN74LVC821ADWG4

Flip Flops Overview

The SN74LVC821ADWG4 is a 10-bit D-type flip-flop from Texas Instruments, designed for high-speed bus interface applications. It operates within a supply voltage range of 1.65 V to 3.6 V and features three-state outputs. The device is housed in a 24-pin SOIC package with surface mount installation. Key electrical parameters include a maximum propagation delay of 8.5 ns at 2.7 V with a 50 pF load, and output drive capabilities of 24 mA for both high and low states. It supports CMOS and TTL input levels, ensuring compatibility across various logic families.

Flip Flops Feature Summary

• Provides ten independent D-type flip-flops with positive-edge triggering for efficient data storage and transfer.
• Features three-state outputs that facilitate direct connection to system buses without additional buffering.
• Supports wide supply voltage operation from 1.65 V to 3.6 V, enabling compatibility with diverse power domains.

Flip Flops Applications

• High-speed parallel data acquisition systems requiring precise timing control
• Bus interface circuits for memory and I/O expansion modules
• Digital signal processing front-ends for temporary data latching

Flip Flops Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and manufacturing details as per Texas Instruments standards. Confirm the SOIC-24 package dimensions and pinout match your PCB footprint requirements. Check current availability status as this part may be subject to lifecycle changes or regional distribution restrictions. Ensure thermal management aligns with the specified operating temperature range during integration.

Flip Flops Selection Notes

Select this component when designing systems requiring multi-bit synchronous data storage with minimal propagation delay. The LVC series offers superior speed compared to standard 74HC devices while maintaining low power consumption. Consider the 24-pin SOIC package for prototyping ease or transition to TSSOP variants if space constraints require a smaller footprint. Validate input voltage levels against your source logic family to ensure reliable switching thresholds.

Flip Flops Part Context

This device belongs to the SN74LVC821A family of 10-bit D-type flip-flops. It shares functional similarities with other LVC series logic components but is specifically optimized for bus-oriented operations. The ADWG4 designation distinguishes it by its specific package type (SOIC) and environmental compliance attributes within the broader Texas Instruments logic portfolio.

Flip Flops Replacement Considerations

The SN74LVC821APW serves as a pin-compatible alternative in a TSSOP-24 package. Verify that the change in physical dimensions does not impact board layout constraints before substitution.