I2C Bi-directional Logic Level Converter

HobbyTronics I2C Bi-directional Logic Level Converter
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Price: £3.00
(£2.50 + VAT)
Stock Quantity: 27
Model: LOGIC2
Manufacturer: HobbyTronics
Average Rating: 5 out of 5 Stars!

HobbyTronics

I2C Bi-directional Logic Level Converter

We have taken our popular 4-way Logic Level Converter and shrunk it to make this 2-way bi-directional Logic Level converter specifically for I2C communication between 5V and 3V systems. Ideal for connecting sensors operating at 3V to microcontroller systems running at 5V. There is even a 3.3V voltage regulator on board to power the 3V side.

Connection couldn't be easier. On the left, we have the connections to the 5V system (including 5V to supply power to the regulator), and on the right are the connections to the 3V side (including the 3.3V output from the regulator)

Features

  • Tiny, space saving design 13mm x 11mm
  • On-board 3.3V 250mA voltage regulator
  • 2-way bi-directional mosfet logic level conversion
  • Works with I2C
  • Breadboard friendly pin connections spaced at 0.1in and 0.4in apart

Each mosfet has 10k pullup resistors on the 5V and 3.3V side so it works great with I2C.

Documents

I2C Logic Level Converter Schematic

 

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I2C Bi-directional Logic Level Converter
Click to enlarge
I2C Bi-directional Logic Level Converter
Click to enlarge
I2C Bi-directional Logic Level Converter
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