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8-channel Bi-directional Logic Level Converter - TXB0108 (ID: 395)

Adafruit  |  SKU: 1124
(3)
£7.94
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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.

This chip performs bidirectional level shifting from pretty much any voltage to any voltage and will auto-detect the direction. The only thing that doesn't work well with this chip is i2c (because it uses strong pullups which confuse the 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. 0.1uF caps have also been added onto both sides and a 10K pull-up resistor on the output enable pin so you can use it right out of the box.

RESOURCES
8-Channel Bi-Directional Logic Level Converter - Txb0108 (Id: 395) - Active Components
Adafruit

8-channel Bi-directional Logic Level Converter - TXB0108 (ID: 395)

£7.94
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.

This chip performs bidirectional level shifting from pretty much any voltage to any voltage and will auto-detect the direction. The only thing that doesn't work well with this chip is i2c (because it uses strong pullups which confuse the 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. 0.1uF caps have also been added onto both sides and a 10K pull-up resistor on the output enable pin so you can use it right out of the box.

RESOURCES
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