74ALVT162821DL,518

Overview

The 74ALVT162821DL,518 is a 2.5 V / 3.3 V 20-bit bus-interface D-type flip-flop manufactured by Nexperia USA Inc. It features positive-edge triggering and includes integrated 30 Ω termination resistors for signal integrity. The device utilizes BiCMOS technology to combine low static power dissipation with high-speed performance. It operates within a supply voltage range of 2.3 V to 3.6 V and supports I/O compatibility to 5 V. The component is housed in a 56-pin SSOP package (SOT371-1) and is rated for operation from -40 °C to +85 °C.

Feature Summary

• Integrates two independent 10-bit edge-triggered registers coupled to 3-state output buffers
• Includes built-in 30 Ω termination resistors to minimize signal reflections on bus interfaces
• Provides full I/O compatibility to 5 V while operating at lower 2.5 V or 3.3 V supply levels

Applications

• High-speed data bus interface circuits requiring precise timing control
• Memory systems utilizing 20-bit wide data paths
• Digital communication equipment needing low-power state retention

Procurement Notes

Verify the specific suffix '518' against official Nexperia documentation, as standard listings often reference '512'. Confirm current lifecycle status, as similar ALVT series components may be subject to obsolescence notices. Ensure the SSOP-56 package matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when designing 20-bit wide synchronous data buses that require integrated termination resistance. It is suitable for applications demanding 5 V tolerance on inputs/outputs despite lower core logic voltages. Consider the 56-pin SSOP form factor for space-constrained designs requiring high pin density without surface-mount TSSOP alternatives.

Part Context

This part belongs to the 74ALVT family of Advanced Low-Voltage BiCMOS Technology devices. These components are designed for high-performance bus interfacing where speed and power efficiency are critical. The 74ALVT162821 specifically addresses the need for wide-word storage with controlled impedance characteristics directly within the flip-flop structure.

Replacement Considerations

Publicly confirmed substitute part numbers for the 74ALVT162821DL,518 are not available in the provided source material.