74LVTH2245DB,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74LVTH2245DB,118 is an octal bidirectional bus transceiver featuring integrated 30 Ω output termination resistors and 3-state outputs. It operates within a supply voltage range of 2.7 V to 3.6 V and utilizes BiCMOS technology for high-speed performance. The device supports TTL input and output switching levels with overvoltage tolerant inputs up to 5.5 V. Key electrical parameters include propagation delays ranging from 1.0 ns to 5.3 ns depending on voltage conditions, and output drive capabilities of +12 mA and -12 mA. It is housed in a SO20 plastic small outline package (SOT163-1) and functions across an ambient temperature range of -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrated 30 Ω output termination resistors reduce signal reflections on the bus interface.
• Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs.
• IOFF circuitry provides partial power-down mode operation to minimize leakage current.
• Overvoltage tolerant inputs allow direct interfacing with 5 V systems while operating at lower voltages.

Buffers, Drivers, Receivers, Transceivers Applications

• Octal bidirectional bus interfaces
• High-speed data transmission lines
• Buffering and bus orientation control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix '118' corresponds to the standard tape-and-reel packaging format required for automated assembly processes. Confirm that the SO20 package variant matches the footprint constraints of the target PCB design. Ensure compliance with RoHS directives and REACH regulations as specified in the product documentation before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring precise impedance matching via integrated termination resistors. It is suitable for applications needing robust ESD protection exceeding 2000 V HBM. Consider the BiCMOS technology benefits for driving heavy capacitive loads compared to standard CMOS alternatives. Verify that the 3.3 V nominal supply voltage aligns with the system's power distribution network.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74LVT/LVTH logic family, designed for low-voltage high-speed applications. It serves as a bridge between different voltage domains, specifically supporting 3.3 V logic with tolerance for 5 V signals. The LVTH designation indicates the inclusion of termination resistors, distinguishing it from the standard LVT2245 which lacks these internal components.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74LVT2245D,118 is a functional equivalent lacking the internal termination resistors. Designers must evaluate if external termination is acceptable or if the integrated 30 Ω resistors are critical for signal integrity in the specific application environment.