8-Kanal Bi-direktionalerl Pegelwandler - TXB0108

8,81 EUR

incl. 19 % USt zzgl. Versandkosten

Gewicht: 0.0100 kg

Hersteller: Adafruit Industries

Lagerbestand: 25

Lagernd, versandfertig in 24 Stunden.

Lagernd, versandfertig in 24 Stunden.

Art.Nr.: ADA395
     

Produktbeschreibung

8-Kanal Pegelwandler basierend auf dem Texas Instruments TXB0108.


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 divider, for high speed transfers, the resistors can add a lot of slew and cause havoc that is tough to debug. For that reason, we like using 4050/74LVX245 series and similar logic to perform proper level shifting. Only problem is that they are only good in one direction which can be a problem for some specialty bi-diectional interfaces and also makes wiring a little hairy.

That's where this lovely chip, the TXB0108 bi-directional level converter comes in! This chip perform bidirectional level shifting from pretty much any voltage to any voltage and will auto-detect the direction. Only thing that doesn't work well with this chip is i2c (because it uses strong pullups which confuse auto-direction sensor). If you need to use pullups, you can but they should be at least 50K ohm - the ones internal to AVRs/Arduino are about 100K ohm so those are OK! Its a little more luxurious than a 74LVX245 but if you just don't want to worry about directional pins this is a life saver!

This breakout saves you from having to solder the very fine pitch packages that this chip comes with. We also add 0.1uF caps onto both sides and a 10K pull-up resistor on the output enable pin so you can use it right out of the box!

Kunden kauften auch

Breadboard Mini grün

Breadboard Mini grün

4,34 EUR

PiFace Digital Raspberry Pi Erweiterung

PiFace Digital Raspberry Pi Erweiterung

33,00 EUR

MSOP - DIP Adapter 10-Pin

MSOP - DIP Adapter 10-Pin

1,30 EUR

ACS711EX Stromsensor -31A to +31A

ACS711EX Stromsensor -31A to +31A

4,46 EUR

Keypad Shield Kit for 16x2 LCD - I2C controlled (Adafruit)

Keypad Shield Kit for 16x2 LCD - I2C controlled (Adafruit)

16,36 EUR