Sentencing in Pennsylvania is based on a sentencing matrix. Here is a link to it for reference: http://pcs.la.psu.edu/2005%20Guidelines%20Color%20Matrix.pdf
As you can see, it is impossible to answer your question without knowledge of your prior record score. It is also impossible to answer your question without an indication from a district attorney as to what the offense gravity score is. Once these two figures are known, along with whether the charge is an "M" or "F" (i.e. misdemeanor or felony), then you can pinpoint exactly what the guidelines call for.
For example, if you have a prior record score of zero and you commit the crime of felony aggravated assault you are looking at a range between 9 to 16 months.
Please contact our offices in Media, PA if we can be of any further assistance: www.benarilaw.com