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74LVC245APW,118

74LVC245APW,118

Nexperia
Bus Transceivers 74LVC245APW/SOT360/TSSOP20
93,158 in stock
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Overview

The 74LVC245APW is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. It is designed for 1.2V to 3.6V operation, making it ideal for interfacing between different voltage nodes in mixed-signal digital systems.

Why Choose This Part

This device features inputs that are tolerant to 5.5V, allowing it to be used as a down-translator in 5V-to-3.3V systems. It offers very low static power consumption and high-impedance outputs when VCC is 0V, preventing backflow current in partial power-down applications.

Applications

Level Shifting
Translating logic signals between 1.8V, 2.5V, and 3.3V voltage domains in mixed-voltage systems.
Bus Isolation
Using the Output Enable pin to high-impedance the bus, effectively isolating segments of a shared data bus.
Microcontroller I/O Expansion
Providing high-drive current capability and bidirectional buffering for MCU GPIOs connected to heavy capacitive loads.

Getting Started

When designing with this transceiver, ensure the Direction (DIR) pin is tied to a stable logic level to prevent bus contention. Use decoupling capacitors (typically 0.1uF) close to the VCC pin and ensure that all unused inputs are tied to a valid logic high or low level to prevent excessive supply current.