74ALVCH16821DL,518

Overview

The 74ALVCH16821DL,518 is a dual D-type flip-flop with ten bits per element, manufactured by Nexperia USA Inc. It operates within a supply voltage range of 2.3V to 2.7V and 3V to 3.6V. The device features positive edge triggering and offers a maximum propagation delay of 4.5ns at 3.3V with 50pF load. Output drive capability is specified at 24mA for both high and low states. It is housed in a 56-BSSOP package and supports a clock frequency up to 350 MHz.

Feature Summary

• Dual D-type flip-flop architecture with ten-bit configuration per element
• Positive edge triggered operation for precise timing control
• High-speed performance supporting clock frequencies up to 350 MHz
• Robust output drive capability with 24mA sourcing and sinking current

Applications

• Parallel data storage and transfer systems
• High-speed interface circuits requiring edge-triggered latching
• Digital signal processing applications needing reliable state retention

Procurement Notes

Verify component status as the part may be marked as not recommended for new designs or subject to obsolescence notices. Confirm availability through authorized distributors, as stock levels can vary significantly. Ensure compliance with RoHS3 specifications and check for any recent Product Change Notifications regarding packaging or labeling updates before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring dual 10-bit D-type flip-flops with high-speed capabilities. The ALVCH series ensures compatibility with 3.3V logic families while maintaining low power consumption. Consider the 56-pin BSSOP package constraints for PCB layout. Verify that the operating temperature range of -40°C to +85°C meets environmental requirements for the specific application context.

Part Context

This component belongs to the 74ALVCH series of advanced low-voltage CMOS logic devices from Nexperia. The series is designed for high-speed applications requiring low power dissipation and wide voltage operation. As a specialized flip-flop, it integrates multiple logic functions into a single package, reducing board space and simplifying design complexity compared to discrete solutions.

Replacement Considerations

The SN74ALVCH16821DL from Texas Instruments is a documented substitute part number. Verify pinout compatibility and electrical parameter alignment before substitution. Check manufacturer-specific documentation for any differences in packaging or operational characteristics.