# ATtiny/UNO - PCK

**URL:** <https://community.sparkfun.com/t/attiny-uno-pck/27919>\
**Category:** Arduino\
**Created:** [December 10, 2013, 2:18am UTC](https://community.sparkfun.com/t/attiny-uno-pck/27919 "2013-12-10T02:18:28Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![zxm2164](https://avatars.discourse-cdn.com/v4/letter/z/f19dbf/32.png) [@zxm2164](https://community.sparkfun.com/u/zxm2164)\
**Post date:** [December 10, 2013, 2:18am UTC](https://community.sparkfun.com/t/attiny-uno-pck/27919/1 "2013-12-10T02:18:28Z")

</div>

Hi! After recently checking the data sheet of the ATtiny85, I found that the clock frequency of the timer/counter unit can be increased to the “PCK” or up to ~65MHz. Has anyone tried to manipulate the timer/counter registers of the ATtiny using the sparkfun programmer? Have any of you tried to use the PCK in an UNO or ATtiny?