Adafruit TXB0104 Bi-Directional Level Shifter 1

Adafruit TXB0104 Bi-Directional Level Shifter 2

Adafruit TXB0104 Bi-Directional Level Shifter 3

Adafruit TXB0104 Bi-Directional Level Shifter 4

Adafruit TXB0104 Bi-Directional Level Shifter

Adafruit

Adafruit TXB0104 Bi-Directional Level Shifter

Item No.: AF1875

HAN: 1875

EAN: 4060137024634

HS Code: 8538909189

Herkunftsland: US

Lagerstufe: Maintain

5.0 / 1 review

4,95 €

per pack

incl. 19% VAT plus (S)

Net: 4,16 €

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Description
Reviews (1)

Product Description

DESCRIPTION

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 TXB0104 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) or control lines with a lot of capacitance on them. 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!

Since this chip is a special bi-directional level shifter it does not have strong output pins that can drive LEDs or long cables, it's meant to sit on a breadboard between two logic chips! If you do not need instant bi-directional support, we suggest the 74LVX245 as below which has stronger output drive.

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!

TECHNICAL DETAILS

Dimensions: 18mm x 13mm x 2mm / .7" x .5" x .08"

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04.06.2018 Voucher received

Zum Testen und in der Praxis ideal zu verbauen.

Wie in der Überschrift erwähnt ist diese Baugruppe zu Testzwecken und in der angewandten Praxis sehr gut einsetzbar. Ich setze diese Baugruppe zur sekundären Steuerung in einem HF-Projekt ein und habe gute Erfahrung damit gemacht.
Mein Urteil: Sehr gut und universell einsatzbar auch im professionellen Vorhaben.

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Manufacturer according to GPSR
Adafruit Industries LLC, Varick St. 150, 10013 New York, New York, Vereinigte Staaten, [email protected], https://eckstein-shop.de/Adafruit-Marken