SparkFun
SparkFun Logic Level Converter - Single Supply
The SparkFun Single Supply Logic Level Converter is logic level and power supply translator in one small package. This little board breaks out the Texas...
The SparkFun Single Supply Logic Level Converter is logic level and power supply translator in one small package. This little board breaks out the Texas Instruments TXB0104 4-bit bi-directional voltage-level translator with automatic direction sensing. With this logic level converter you will be able to use your 5V logic microcontroller with 3.3V sensors without the second power supply!
What makes this Logic level converter truly special is the fact that you can supply it with 3.3V and it will create the 5V - meaning you can use your 3.3V system, and convert directly to another 5V sensor - and even power your sensor or other board!
This logic level converter provides 5V to the high side of the TXB0104 and the low side is programmable to 3.3V, 2.5V and 1.8V. Please keep in mind that the default low side voltage is 3.3V.
GET STARTED WITH THE SPARKFUN SINGLE SUPPLY LOGIC LEVEL CONVERTER GUIDE
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
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Single Supply Logic Level Converter Schematic
Schematic · 73.0 KB · Click any page to view full size
TXB0104 Datasheet
Datasheet · 1.2 MB · Click any page to view full size
TPS61200 Datasheet
Datasheet · 2.6 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 582.8 KB · Click any page to view full size
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