74LVCH16245ABX,518

Overview

The Nexperia 74LVCH16245ABX,518 is a 16-bit bus transceiver with direction pins and 5 V tolerant, 3-state outputs. It supports a supply voltage range of 1.2 V to 3.6 V and operates within an ambient temperature range of -40 °C to +125 °C. The device features Schmitt-trigger inputs for slow signal tolerance and IOFF circuitry for partial power-down protection. All data inputs include bus hold functionality. Inputs are compatible with 3.3 V or 5 V devices, enabling translation in mixed-voltage environments.

Feature Summary

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

Applications

• Mixed 3.3 V and 5 V environment translators
• Partial power-down applications requiring backflow current prevention
• Systems utilizing slow input rise and fall times

Procurement Notes

Verify the specific package type against the ordering information table, as the ABX suffix corresponds to a QFN package that was removed from this datasheet revision. Confirm current product status directly with Nexperia, as historical records indicate this specific part number may have been superseded by newer package variants like ADGV or DGG.

Selection Notes

Select this component when bus hold functionality is required on all data inputs to simplify design by removing external pull-ups. Ensure the application requires operation within the specified -40 °C to +125 °C temperature range. Verify compatibility with mixed 3.3 V and 5 V logic levels if used as a translator.

Part Context

This device belongs to the 74LVC/LVCH16245A family of 16-bit bus transceivers. The 'H' designation specifically indicates the inclusion of bus hold circuits on all data inputs, distinguishing it from the standard 74LVC16245A which lacks this feature. It shares functional similarities with other bidirectional level shifters but offers dedicated direction control pins.

Replacement Considerations

The 74LVCH16245ADGG (TSSOP48) and 74LVCH16245ADGV (TVSOP48) are listed in the current ordering information as active replacements for the discontinued ABX package variant.