74LVCH16245AEV,157

Overview

The Nexperia 74LVCH16245AEV is a discontinued 16-bit bus transceiver with 3-state outputs. It supports a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device includes IOFF circuitry for partial power-down protection and active bus hold on data inputs. It operates within an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Active bus hold circuitry eliminates the need for external pull-up resistors on unused data inputs
• IOFF circuitry prevents damaging backflow current during partial power-down applications
• Schmitt-trigger action at all inputs provides tolerance for slower input rise and fall times

Applications

• Mixed 3.3 V and 5 V environments requiring level translation
• Partial power-down applications utilizing IOFF functionality
• Systems requiring direction control via separate send/receive inputs

Procurement Notes

This component is officially marked as obsolete by Nexperia. The manufacturer has ceased production, and the factory is not accepting new orders. Availability is restricted to existing stock or secondary market sources only. Designers should verify end-of-life status before finalizing any procurement plans.

Selection Notes

Select this part only if legacy compatibility is required. For new designs, consider alternative 16-bit transceivers from the same family that remain in production. Verify package availability and ensure the specific ordering suffix matches the required pin configuration and lead finish.

Part Context

This device belongs to the 74LVCH16245A series of 16-bit bus transceivers. It utilizes a standard MULTIBYTE flow-through architecture. The product line offers CMOS low power dissipation and direct interface capabilities with TTL levels. It is designed for high noise immunity in digital communication systems.

Replacement Considerations

Verify cross-references with other 74LVCH16245 variants such as the ADGG or ADGV packages. Ensure functional equivalence regarding bus hold and IOFF features when selecting substitutes.