jrz126
Active Member
I have a 4x4 matrix keypad that I plan on using with a microcontroller someday. I'm also getting ready to put in an order to allelectronics and I was wondering if I should get one of these IC's
https://www.allelectronics.com/cgi-bin/category.cgi?category=285&item=EDE-1144&type=store there is also a link to a datasheet there.
Would it be worth the 7.50?
EDIT: just found this IC here, https://www.allelectronics.com/cgi-bin/category.cgi?category=285&item=EDE-702&type=store for a 1 wire interface to a character LCD. (which my keypad also has)
Is there better IC's to use to keep my I/O pin count down for controlling the lcd and keypad?
https://www.allelectronics.com/cgi-bin/category.cgi?category=285&item=EDE-1144&type=store there is also a link to a datasheet there.
Would it be worth the 7.50?
EDIT: just found this IC here, https://www.allelectronics.com/cgi-bin/category.cgi?category=285&item=EDE-702&type=store for a 1 wire interface to a character LCD. (which my keypad also has)
Is there better IC's to use to keep my I/O pin count down for controlling the lcd and keypad?