Editing PIC microcontrollers (section)

===Part number===
The F in a PICMicro part number generally indicates the PICmicro uses flash memory and can be erased electronically. Conversely, a C generally means it can only be erased by exposing the die to ultraviolet light (which is only possible if a windowed package style is used). An exception to this rule is the PIC16C84, which uses EEPROM and is therefore electrically erasable.

An L in the name indicates the part will run at a lower voltage, often with frequency limits imposed.<ref name="3vdesign">{{cite web | title=3V Design Center | url=http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2530 | access-date=2 August 2011}}</ref> Parts designed specifically for low voltage operation, within a strict range of 3 – 3.6 volts, are marked with a J in the part number. These parts are also uniquely I/O tolerant as they will accept up to 5&nbsp;V as inputs.<ref name="3vdesign" />