74ALVCH16373DL,118

Overview

The Nexperia 74ALVCH16373DL,118 is a 16-bit D-type transparent latch featuring bus hold inputs and three-state outputs. It operates within a supply voltage range of 2.5 V to 3.6 V. The device supports two independent 8-bit latches with separate latch enables (1LE, 2LE) and output enables (1OE, 2OE). It includes I_OFF circuitry for partial power-down applications to prevent backflow current. The component complies with JEDEC standards JESD8-7 and JESD8-5, ensuring compatibility with low-voltage CMOS logic families.

Feature Summary

• Bus hold inputs maintain stable data states on floating lines
• Three-state outputs allow safe connection to shared buses
• I_OFF circuitry prevents damaging backflow during partial power-down
• Dual latch enable and output enable controls for flexible 8-bit or 16-bit operation

Applications

• Parallel data storage in high-speed digital systems
• Buffering between different voltage domains
• Memory address and data latching in embedded controllers
• Interface circuits requiring partial power-down capabilities

Procurement Notes

Verify the complete ordering code including the suffix ',118' to ensure correct tape-and-reel packaging configuration. Confirm that the design environment supports the specified 2.5 V to 3.6 V operating range. Ensure PCB layout accounts for the TVSOP48 package thermal requirements and pinout alignment with the datasheet schematic.

Selection Notes

Select this component when designing systems requiring 16-bit latching with bus hold functionality and three-state output control. It is suitable for applications needing direct interface with TTL levels and compliance with specific JEDEC voltage standards. Consider the TVSOP48 package constraints regarding board space and thermal dissipation compared to other available packages in the series.

Part Context

This part belongs to the Nexperia 74ALVCH series of advanced low-voltage CMOS logic devices. The series is characterized by high speed and low power consumption, designed for demanding digital applications. The 74ALVCH16373 specifically addresses the need for wide supply voltage ranges and robust ESD protection in modern electronic designs.

Replacement Considerations

Check for equivalent parts from other manufacturers offering similar 16-bit latch specifications with bus hold features. Verify pin compatibility and electrical characteristics such as propagation delay and output drive strength before substitution.