74ALVCH16821DGGS

Overview

The 74ALVCH16821DGGS is a 20-bit bus-interface D-type flip-flop manufactured by Nexperia. It features positive-edge triggering and 3-State outputs, designed for high-speed data storage applications. The device operates within a supply voltage range of 2.3 V to 3.6 V, supporting both 2.3 V–2.7 V and 3.0 V–3.6 V logic levels. It exhibits a maximum propagation delay of 4.5 ns at 3.3 V with a 50 pF load. The component is housed in a 56-BSSOP package (7.50 mm wide) and functions within an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Provides 20-bit non-inverting data storage with positive-edge clock triggering
• Features 3-State outputs for effective bus line isolation and control
• Supports universal bus interface operations across multiple voltage domains

Applications

• High-speed parallel data buffering in communication systems
• Register stages in complex digital signal processing architectures
• Data latch circuits in memory interface subsystems

Procurement Notes

Verify the specific suffix 'DGGS' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure that the requested quantity aligns with standard factory reel sizes to avoid partial reel handling issues. Confirm RoHS compliance status directly from the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring 20-bit synchronous data storage with low propagation delay. It is suitable for interfaces demanding 3-State output control to manage bus contention. Consider the 56-pin BSSOP package constraints for PCB layout density. Verify that the system power supply remains stable within the 2.3 V to 3.6 V operational window to ensure timing integrity.

Part Context

This part belongs to the 74ALVCH series of advanced low-voltage CMOS logic devices. The series is characterized by high switching speeds and compatibility with various logic families. The 74ALVCH16821 specifically addresses the need for wide-bus data latching in modern electronic equipment, offering a balance between speed and power consumption for portable and industrial applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.