74LVT16245BDGG,512

Overview

The Nexperia 74LVT16245BDGG,512 is a 16-bit bidirectional bus transceiver with 3-state outputs. It operates within a supply voltage range of 2.7 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device supports BiCMOS high-speed performance with output drive capabilities 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.

Feature Summary

• Bi-directional level translation between systems operating at different voltage levels
• Bus hold functionality on data inputs to maintain valid logic states without external components
• IOFF circuitry prevents damaging backflow currents during partial power-down conditions

Applications

• High-speed data bus interfaces in computing systems
• Voltage translation between 3.3 V and 5 V subsystems
• Memory bus expansion and control circuits

Procurement Notes

Verify the specific ordering suffix matches the required package variant and temperature rating. Confirm that the component status remains active for production use. Ensure compatibility with existing PCB footprint dimensions and soldering profiles before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring robust 16-bit data transfer with mixed voltage domains. The wide input tolerance allows direct interfacing with 5 V devices while powered by lower voltages. Consider the TSSOP48 package constraints and thermal dissipation requirements for high-density layouts.

Part Context

This part belongs to the 74LVT family of low-voltage TTL-compatible logic devices. It provides a standard pin-out architecture compatible with industry-standard bus transceivers. The device is designed for applications demanding high noise immunity and reliable signal integrity in complex digital environments.

FAQ

How does the device handle unused inputs?

The integrated bus hold circuitry maintains unused data inputs at a valid logic level, eliminating the need for external pull-up or pull-down resistors.

What is the function of the IOFF circuitry?

The IOFF circuitry disables the outputs when the device is powered down, preventing potentially damaging backflow current through the device from live buses.