74LVT162245BDGG:11

Overview

The Nexperia 74LVT162245BDGG:11 is a BiCMOS 3.3 V 16-bit bus transceiver with 3-state outputs and integrated 30 Ω termination resistors. 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 features two output enables (1OE, 2OE) and two direction control inputs (1DIR, 2DIR), allowing configuration as one 16-bit or two 8-bit transceivers. Propagation delay ranges from 1.0 ns to 3.9 ns depending on voltage. It includes IOFF circuitry for partial power-down mode and bus-hold data inputs to eliminate external pull-up resistors.

Feature Summary

• Integrated 30 Ω series output resistance eliminates the need for external termination components.
• Bus-hold data inputs maintain logic states for unused pins without requiring external pull-up resistors.
• IOFF circuitry disables outputs during power-down to prevent potentially damaging backflow currents.

Applications

• High-speed parallel bus interfaces
• Mixed 3.3 V and 5 V system translation
• Live insertion and extraction applications

Procurement Notes

Verify the specific ordering suffix :11 against the manufacturer's current catalog to confirm packaging details such as reel specifications. Ensure the TSSOP48 package variant matches the required board layout dimensions. Confirm RoHS compliance status directly with the supplier documentation prior to finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring integrated termination to reduce bill of materials count. It is suitable for environments where live insertion occurs, provided the 5.5 V input tolerance aligns with the connected bus levels. Verify that the 2.7 V minimum supply voltage meets the lowest operating condition of the target application.

Part Context

This device belongs to the 74LVT logic family, designed for low-voltage 3.3 V applications. It utilizes BiCMOS technology to achieve high speed and strong output drive capabilities. The part serves as a bidirectional interface between different bus widths and voltage domains in digital electronic systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Nexperia replacement guides for cross-reference information.

FAQ

How does the device handle unused inputs?

The 74LVT162245B incorporates bus-hold data inputs which hold unused pins at a defined logic level, removing the requirement for external pull-up resistors.

What is the function of the IOFF circuitry?

The IOFF circuitry ensures that outputs are disabled when the device is powered down, preventing damaging backflow current through the component.