Circuit Schematic Bidirectional Logic Level Converter using 74LCX245 IC

Converter. - Here is Circuit Schematic Bidirectional Logic Level Converter like in figure 1 below. This circuit based on 74LCX245 IC. Often, it becomes necessary to interface an existing or new 5V AVR / PIC / MCU project to new devices that use 3.3V logic, like memory cards, sim cards, etc. Described here is a circuit that converts +5V to +3.3V logic or +3.3V to +5V logic. This compact circuit makes it perfect for embedded systems that need to interface with different logic levels. The design is based on 74LCX 245 IC, which is a low voltage bidirectional transceiver with 5V tolerant inputs and outputs, from Fairchild.

Circuit Schematic 

Circuit schematic like in figure 1 above is Circuit Schematic Bidirectional Logic Level Converter using 74LCX245 IC. The 74LCX245 IC contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low voltage (2.5V and 3.3V) VCC applications with capability of interfacing to a 5V signal environment. 74LCX245 IC is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. Please read more the description of this article from the original article "Bidirectional Logic Level Converter". 

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