GeeekPi 6Pack TXS0108E 8 Channel Logic Level Converter Bi-Directional High Speed Full Duplex Shifter 3.3V 5V for Arduino Raspberry Pi

They do what they say

Using to convert MIDI signals from 3.3 to 5 v and back. Also good for i2c

I would not buy again. Seems like no quality control.

Came as a pack of 6 boards. Only 3 worked. 2 were completely dead. 1 mostly worked but one pin was bad. The other 3 boards worked perfectly. So only expect to get a few working boards if you order this. Jury is still out on how long they will last...

One worked for five minutes before failing, the other five failed on a bench test. I've had a few other level converters not work for me, but none of the others have had this high of a failure rate. Seller was very responsive and tried to help, but I already tossed them in the round bin. Could've been a random issue with my setup, but they just didn't work for me.

Of the six, only one of them kinda worked (two channels of the eight). I looked through the TI datasheet (I'm an engineer) and I'm using it well within the rated specs. TI makes good parts so I'm guessing they die when whoever is placing them on the little board or when traveling in the individual plastic bags (not anti-static bags). Probably ESD the way they are packed.Save your time and money.

Bi-directional is awesome in theory but it's practically impossible to get this to work in a real circuit. I would go with a uni-directional level converter next time. Also the quality is awful.I'm glad that I went with Amazon Prime. Their service is truly exceptional.

Chaque composant possède 2 rangées de 10 broches.Après avoir reçu la commande, j'ai regardé le descriptif de l'article sur Amazonet celui-ci précise que l'article est livré avec 2 connecteurs de 8 brocheset en fin de compte, on reçoit 2 connecteurs de 7 broches.Remarquez 8, c'était déjà perdu.

These boards allow the two most common logic level devices to interface with no fear of overvolting. 3.3 volt devices running safely from a five volt device and 5 volt devices receiving their full logic levels from a 3.3 volt device. Ideal for home electronics experiments and projects, in particular interfacing between Raspberry Pi and Arduino devices.

I am using them to connect an modern CPU working at 3.3V to a CANbus device that works at 5V using an SPI bus. These devices work rally well even at 25MHz SPI clock speed with no degredation of the signal. Excellent value for the price just remember to connect the OE pin to 3V3 (via a resistor) to get them working.

Hi,Great little product, high quality. Be careful with the OE pin or Output Enable I think it means, as unlike other logic level shifters, if that isn’t tied high, then the outputs are all low.Regards,Christopher

Utilizzato per convertire segnali a 3.3V <-> 5V. Provato sia in ingresso che uscita. Non occorre impostare la direzione. Consigliato.