74LVCH16245ADL,118

Overview

The Nexperia 74LVCH16245ADL,118 is a 16-bit bus transceiver with 3-state outputs. It supports two 8-bit or one 16-bit configuration using dual output enables and direction controls. The device operates on a supply voltage range of 1.2 V to 3.6 V and features inputs tolerant up to 5.5 V. It includes IOFF circuitry for partial power-down protection and bus hold functionality on data inputs. The component is housed in a 48-lead SSOP package.

Feature Summary

• Overvoltage tolerant inputs allow direct interfacing with 5 V devices while operating at lower voltages.
• Bus hold circuitry on all data inputs eliminates the need for external pull-up resistors.
• IOFF circuitry prevents damaging backflow currents when the device is powered down.
• Schmitt-trigger action provides tolerance for slower input rise and fall times.

Applications

• Mixed 3.3 V and 5 V memory bus architectures
• Partial power-down mode applications requiring backflow prevention
• Bi-directional level translation between different logic families

Procurement Notes

Verify that the specific ordering suffix matches the required SSOP48 package variant. Confirm the temperature range specification aligns with the intended operational environment. Ensure compliance with RoHS directives and check for any recent product change notices regarding marking or assembly sites before finalizing procurement.

Selection Notes

Select this component when a 16-bit bi-directional interface is required within the 1.2 V to 3.6 V supply range. The LVCH variant is preferred over LVC when internal bus hold functionality is necessary to stabilize unused inputs without external components. Verify that the 5.5 V input tolerance meets the source driver requirements.

Part Context

This part belongs to the Nexperia 74LVCH16245A family of 16-bit bus transceivers. It shares functional similarities with the 74LVC16245A but includes additional bus hold features on its data inputs. The ADL suffix specifically denotes the SSOP48 plastic thin shrink small outline package variant.

Replacement Considerations

The 74LVC16245ADL,118 serves as a non-bus-hold alternative within the same package. For automotive applications, verify if the Q1 qualified variants are required instead of standard industrial grade parts.