Adafruit 74LVC245 - Breadboard Friendly 8-bit Logic Level Shifter

This versatile chip efficiently bridges the gap between 3.3V logic devices and 5.0V systems, safeguarding sensitive components from damage. Perfect for Arduino enthusiasts tackling new sensor technologies, it empowers seamless connections without compromising device integrity.

The 74LVC245 handles digital signal conversions with precision. It supports up to 8 lines, effortlessly adjusting signals from 5V to lower voltages, even when operating at 1.8V. Suitable for SPI, Serial, and Parallel bus interfaces, it offers a robust solution for common logic-level challenges. Note that it isn’t compatible with bi-directional or pull-up based protocols like I2C or 1-Wire.

Easy to implement, connect VCC to your target logic level (such as 3.3V), ground to ground, and OE to ground for device readiness. Set DIR to VCC for directional control, allowing digital logic on the A pins to shift down to the B pins' lower logic level.