74ALVT162821DGGS

Overview

The Nexperia 74ALVT162821DGGS is a high-performance BiCMOS device designed for VCC operation at 2.5 V or 3.3 V with I/O compatibility to 5 V. It features two independent 10-bit, edge-triggered registers coupled to 3-state output buffers. The device includes integrated 30 Ω termination resistors and operates within a temperature range of -40 °C to +85 °C. Packaged in a TSSOP-56 (SOT709) surface-mount housing, it combines low static and dynamic power dissipation with high speed and high output drive capabilities.

Feature Summary

• Integrates two independent 10-bit D-type flip-flops with positive-edge triggering
• Features built-in 30 Ohm termination resistors for signal integrity
• Provides 3-state outputs controlled by independent nCP and nOE gates
• Ensures I/O compatibility with 5 V systems while operating at lower voltages

Applications

• High-speed bus interface applications requiring level translation
• Data acquisition systems utilizing parallel data latching
• Industrial control units managing multi-bit signal routing
• Communication equipment handling bi-directional data transfer

Procurement Notes

Verify the specific suffix DGGS corresponds to the TSSOP-56 package variant when sourcing. Confirm RoHS compliance status and moisture sensitivity classification prior to assembly. Ensure design reviews account for the 30 Ohm internal termination requirements to match system impedance specifications accurately.

Selection Notes

Select this component for designs requiring simultaneous latching and buffering of 20-bit wide data paths. It is suitable for mixed-voltage environments where 5 V tolerance is necessary. Consider the TSSOP-56 footprint constraints and thermal performance characteristics during PCB layout planning to ensure reliable operation under specified load conditions.

Part Context

This part belongs to the 74ALVT family, characterized by advanced low-voltage CMOS technology optimized for 3.3 V and 2.5 V logic systems. The ALVT series provides superior speed and power efficiency compared to standard LVT devices. It is widely utilized in high-density digital circuits requiring robust signal transmission and precise timing control across multiple data lines simultaneously.

Replacement Considerations

The 74ALVT162821DL serves as a direct pin-compatible alternative featuring an SSOP-56 package instead of TSSOP. Designers must verify mechanical height and pad layout differences between SOT709 and SOT371-1 housings before substituting.