They're not designed as LED drivers but they will work fine, and require only a few control lines (you can daisy chain them). If you can reduce that to 6-7mA you can use a couple 74HC595s with 8 resistors each. 10mA-15mA would be a more reasonable maximum current. Unless you plan on only operating it outside in Canada in the winter you will likely be violating the ratings.
Since I am new to sourcing electronics parts for my own projects, I would appreciate any tips on how to read datasheets for relevant information, how to find the exact part I need, or what are some good websites to look for parts on.Ģ5mA is the absolute maximum forward current of the LED segments at 25☌.
available in DIP, so I can test it easily on breadboard. able to be controlled with SPI or something else that takes few pins. Have at least 14 outputs (or can multiplex the 2 7-segment digits). (I've tried looking on for a good solution, but I'm not sure what key words to search exactly, and it's difficult to understand the lingo of the datasheets to find out what a particular IC actually does.ĭoes anyone know of a good display driver or even a shift register that will work well with this display? If not, do you know what keywords or search terms are best to find what I'm looking for? What I'm looking for is a relatively inexpensive ($3-$4 or less) IC that can drive both of these, using a microcontroller to command it over SPI, or something else that uses few I/O pins. The forward voltage for each segment is 2.0 V. I have two 7-segment displays ( datasheet here).
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