# IC / Logic

### 555
* [Digital timer](http://www.farnell.com/datasheets/1874740.pdf)
* Use Farnell 9589880 for normal NE555DR in SOIC8
* Not used yet

### 4017
* [Decade counter](http://www.farnell.com/datasheets/1758117.pdf)
* Use Farnell 1085280 for normal HEF4017BT in SOIC16
* Not used yet