Level Shifter Ic 1 8v To 3 3v. Voltage level translator bidirectional 4 input 0 02 ma 4 ns 100 mbps 1 2 v to 3 6 v soic 14 texas instruments the date lot code information will be displayed on your packaging label as provided by the manufacturer. The output level is referenced to the supply voltage and is able to support 1 8 v 2 5 v 3 3 v and 5 v cmos levels.
Iic I2c 4 Channel Bi Directional 5v To 3 3v Logic Level Converter Shifter Module Amazon Com Industrial Scientific from www.amazon.com
Logic level translator 7 typical operating characteristics vcc 3 3v vl 1 8v rl 1mω cl 15pf ta 25 c data rate 500kbps in open drain operation and 8mbps in push pull operation unless otherwise noted vl supply current vs. 395 because the arduino and basic stamp are 5v devices and most modern sensors displays flash cards and modes are 3 3v only many makers find that they need to perform level shifting conversion to protect the 3 3v device from 5v although one can use resistors to make a. For the 1 8v to 3 3v operational direction you can easily make a level translator with a couple of transistors and resistors.
Do not use meg ohm resistors for the voltage divider from the 3 3v to 1 8v uart direction flow.
The pca9306 device allows bidirectional voltage translations between 1 2 v and 5 v without the use of a direction pin. The input is designed with a lower threshold circuit to match 1 8 v input logic at vcc 3 3 v and can be used in 1 8 v to 3 3 v level up translation. Adafruit industries unique fun diy electronics and kits 8 channel bi directional logic level converter txb0108 id. 395 because the arduino and basic stamp are 5v devices and most modern sensors displays flash cards and modes are 3 3v only many makers find that they need to perform level shifting conversion to protect the 3 3v device from 5v although one can use resistors to make a.
