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Notify me when its in stockArduino (and Basic Stamp) devices operate at 5V, while many modern sensors, displays, flash cards, and modules are designed for 3.3V. This discrepancy often necessitates level shifting or conversion to protect 3.3V devices from 5V.
Although resistors can be used to create a divider, they can introduce too much attenuation for high-speed transfers, making it challenging to troubleshoot. This is where the TXB0108 bidirectional level shifter comes into play! This chip can perform bidirectional level shifting from almost any voltage to any voltage and automatically detects the direction. The only thing it doesn't work well with is I2C (because it uses strong pull-ups that can confuse the automatic direction sensor). If you need to use pull-ups, you can do so, but they should be at least 50K ohms - AVR/Arduino's internal pull-ups are around 100K ohms, so these values should not cause any issues! This breakout board is designed for sitting between two logic chips on a breadboard. If you don't need instant bidirectional support, we recommend the 74LVC245, which has strong output drivers.
This breakout board saves you from the hassle of soldering very fine-pitched packages that come with this chip. We also include 0.1uF caps on both sides and a 10K pull-up resistor on the output enable pin, so you can use it right out of the box.
You can order the 8-Channel Bidirectional Logic Level Converter from the Adafruit category at SAMM Market, where you'll find it at a reasonable price with the benefits of same-day shipping and fast delivery.
