74ALVCH16821DGGY

Overview

The Nexperia 74ALVCH16821DGGY is a 20-bit bus-interface D-type flip-flop featuring positive-edge triggering and 3-State outputs. It operates within a supply voltage range of 2.3 V to 3.6 V, with specific ratings for 2.3 V–2.7 V and 3.0 V–3.6 V applications. The device exhibits a maximum propagation delay of 4.5 ns at 3.3 V with 50 pF load. It provides high drive capability with output currents of 24 mA for both high and low states. Packaged in a 56-BSSOP (TSSOP-56) surface-mount format, it supports industrial temperatures from -40 °C to +85 °C.

Feature Summary

• 20-bit data storage architecture utilizing two independent 10-bit elements
• Positive-edge clock triggering for precise synchronous data capture
• High-drive 3-State outputs enabling direct system bus interfacing
• Wide operating voltage compatibility supporting multiple logic standards

Applications

• High-density memory buffer interfaces
• Synchronous data acquisition systems
• Complex digital signal processing pipelines
• Communication protocol gateways

Procurement Notes

Verify component authenticity through authorized Nexperia channels or certified distributors. Confirm the specific suffix 'DGGY' matches the required TSSOP-56 package variant. Check current lifecycle status as this series may be subject to discontinuation notices. Ensure environmental compliance documentation aligns with project requirements before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring 20-bit synchronous storage with high-speed performance. The 4.5 ns delay suits applications demanding rapid data throughput. Verify that the 24 mA drive strength meets the capacitive load requirements of the target bus. Ensure the operating voltage range aligns with the system's power supply rails.

Part Context

This part belongs to the Nexperia 74ALVCH family of advanced low-voltage CMOS logic devices. These components are engineered for high-speed operation in portable and battery-powered applications. The 74ALVCH16821 specifically addresses the need for wide-bus data latching in modern digital architectures, bridging high-performance logic with low-power consumption constraints.

Replacement Considerations

Publicly confirmed substitute part numbers include SN74ALVCH16821DL manufactured by Texas Instruments. Verify pinout compatibility and electrical specifications before substitution.