If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.
The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.
Dimensions: 0.63 x 0.52" (16.05 x 13.33mm)
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Customer Reviews
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Review by Leith
verified purchaser
Rating Simple to use and convenient (Posted on 1/05/2018)
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Review by John
verified purchaser
Rating I'm using this for translating between the Raspi (3v3) UART and the TTL interface of a RS-422 converter which is 5v only. Also for 3v3 <-> 5v conversion on a couple of 1-1wire busses. Seems to work well. Unfortunately it doesn't come with pins so you may want to buy some of those separately. (Posted on 30/03/2018)
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Review by Brendan
verified purchaser
Rating These work as expected... if only SBC makers would incorporate this into their board designs... would make life a whole lot easier! (Posted on 1/11/2017)
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Review by John
verified purchaser
Rating I received this the next day after ordering it, and it works of course. (Posted on 10/08/2017)
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Review by Mervyn
verified purchaser
Rating good as described and prompt delivery (Posted on 21/07/2016)
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Review by Frank
verified purchaser
Rating Does what it says, it's tiny though which makes soldering a bit tricky. (Posted on 10/03/2016)
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We deliver Australia-wide with these options:
- $3 for Small Items (3-7 days, not tracked, only available on selected small items)
- $6.95 for Standard Post (2-4 days, tracked)
- $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)
International Orders - the following rates are for New Zealand and will vary for other countries:
- $11.49 for Pack and Track (3+ days, tracked)
- $16.50 for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount might increment based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
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