BB-TXB0108 8 Channel Bi-directional Logic Level Converter TXB0108

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US$9.16
BB-TXB0108
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BB-TXB0108 8 Channel Bi-directional Logic Level Converter TXB0108

It is a 8 channel or 8-bit logic level converter that is great for interfacing sensors or 3.3v logic components with 5v logic level microcontrollers. This unit will do the level shifting required to allow theses device to communicate without burning out each other. On the right side Vb is the input voltage reference of 5v, whereas Va and OE is the input reference of 3.3v. The common ground is applied to GND and B1 to B8 will serve as digital input 5v to be converted into 3.3v from A1 to A8 or vice versa. If you want to convert an analog signal you require an op-amp.

However if you are using it for I²C communication we would suggest looking for a dedicated I²C logic level converter as this board is not capable logic level conversion of pull up line of less than 50kΩ.

This unit is also designed for breadboard application only!

Wiring guide:

http://www.mcu-turkey.com/wp-content/uploads/2014/11/TXB0108_connection.png

Resources:

http://www.ti.com/product/TXB0108

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