4-Way Bi-directional Logic Level Converter

HobbyTronics 4-Way Bi-directional Logic Level Converter
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Model: LOGIC4
Manufacturer: HobbyTronics
Average Rating: 5 out of 5 Stars!

HobbyTronics

4-Way Bi-directional Logic Level Converter

This useful little board provides 4 bi-directional logic level converters and a 3.3V voltage regulator in the one small package. This makes it great for connecting your Arduino (or other) board running at 5V with sensors, microSD cards and other devices that are running typically at 3.3V. With the onboard 3.3V voltage regulator you can power the external devices without needing a separate supply.

This version of the Logic Converter has now been replaced by a new smaller version so we are offering these boards at a discount

Features

  • On-board 3.3V 250mA voltage regulator
  • 4-way logic level conversion
  • Each channel fully bi-directional using mosfets
  • Works with I2C, SPI and TTL logic
  • Breadboard friendly pin connections spaced at 0.1in and 0.6in apart
  • Can be used with 1.8V sensors by removing solder bridge J1

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

The four high voltage input lines A1..A4 connect to the 4 low voltage lines B1..B4 respectively.

Although designed for 5V to 3.3V/1.8V conversion, you can use up to 10V on the high voltage side

3.3V Devices

The board has a solder bridge (J1) that links the onboard 3.3V regulator up to the low voltage side. This is the default and allows connection to 3.3V devices and also supplies a 3.3V 250mA output.

1.8V Devices

If you are connecting to 1.8V devices you can removed this solder bridge, thereby disconnecting the 3.3V regulator. You will then need to connect the 3V low side pin to the 1.8V supply on your device to enable pins B1..B4 to be pulled up to 1.8V

Documents

Schematic

 

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4-Way Bi-directional Logic Level Converter
Click to enlarge
4-Way Bi-directional Logic Level Converter
Click to enlarge
4-Way Bi-directional Logic Level Converter
$ 3.95 New In Stock
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