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74LVC245 – Breadboard Friendly 8-bit Logic Level Shifter Adafruit

Original price was: $ 2.Current price is: $ 1.

SKU: mode_6294935044 Category: Components & Parts Tags: IC & Transistors, Level Shifters & Expanders, logic, updated 10-22

Description
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Most of our customers love using the Arduino for prototyping, design and invention but find themselves stuck when trying to connect the Arduino to the latest sensors, displays, controllers, interfaces, etc. as they are almost all 3.3V logic these days. We try to solve this problem by having all our breakout boards be 5V compatible or when that’s not possible, including a level shifter chip but there are still thousands of tempting devices out there.

This chip solves the problem of how to interface 3.3V logic devices to a 5.0V logic chip such as the Arduino. Most 3.3V devices do not like being run with 5V signals and can be damaged or flaky. The 74LVC245 is designed so that even when it runs at 1.8V, it still happily accepts 5V signals in one pin and converts it to a lower logic level on the opposite pin. This chip is only for digital signals, it doesn’t convert analog signals (you need an op amp for that). It has 8 pipes it can convert but it won’t work with bi-directional/pull-up based devices such as I2C or 1-Wire. It does work great for SPI, Serial, Parallel bus, and other logic interfaces.

Using it is simple. We suggest checking out the 74LVC245 datasheet for details but essentially: connect VCC to your logic level you want to convert to (say 3.3V), Ground connects to Ground. Wire OE (output enable) to ground to enable the device and DIR (direction) to VCC. Then digital logic on the A pins up to 5V will appear on the B pins shifted down to the VCC logic.

Technical Details

74LVC245 datasheet

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Our policy is for 30 days. If 30 days have gone without a trace since the purchase however, we're unable to give you a return or exchange.

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74LVC245 – Breadboard Friendly 8-bit Logic Level Shifter Adafruit

Technical Details

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