74LVT16244BDGG,518

Overview

The Nexperia 74LVT16244BDGG,518 is a 3.3 V 16-bit buffer and line driver featuring 3-state outputs. It operates within a supply voltage range of 2.7 V to 3.6 V and supports overvoltage tolerant inputs up to 5.5 V. The device utilizes BiCMOS technology for high-speed performance and provides an output capability of +64 mA and -32 mA. It includes bus hold data inputs to eliminate external pull-up resistors and IOFF circuitry for partial power-down mode operation. The component is specified for ambient temperatures from -40 °C to +85 °C and complies with JEDEC standard JESD8C.

Feature Summary

• Features four independent output enable controls (1OE, 2OE, 3OE, 4OE) allowing flexible configuration as four 4-bit, two 8-bit, or one 16-bit buffers.
• Incorporates bus hold data inputs to maintain unused input states without requiring external pull-up resistors.
• Supports live insertion and extraction while preventing bus current loading when outputs are tied to a 5 V bus.
• Includes IOFF circuitry that disables outputs during partial power-down to prevent potentially damaging backflow currents.

Applications

• High-speed 16-bit bus interface applications
• Mixed 3.3 V and 5 V logic environments
• Systems requiring live insertion and hot-swapping capabilities

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component for designs requiring a 16-bit non-inverting buffer with high drive strength and 3-state control. Ensure the system operates within the 2.7 V to 3.6 V supply range. The TSSOP48 package requires appropriate PCB footprint design. Confirm that the application benefits from the integrated bus hold feature to simplify input handling for unused lines.

Part Context

This part belongs to the Nexperia 74LVT/LVTH16244B family of 3.3 V 16-bit buffer/drivers. It is manufactured in a TSSOP48 plastic thin shrink small outline package (SOT362-1). The device is designed for general-purpose digital buffering and line driving tasks in low-voltage systems.

Replacement Considerations

Check for direct substitutes such as the 74LVTH16244BDGG variant within the same datasheet. Verify pin compatibility and electrical specifications before substitution.

FAQ

How does the bus hold feature function?

The bus hold data inputs eliminate the need for external pull-up resistors by holding unused inputs in a defined state.

What is the purpose of the IOFF circuitry?

IOFF circuitry provides partial power-down mode operation by disabling the output to prevent damaging backflow current through the device when it is powered down.