10 years, 10 months ago.

Hello,

please check the KL25 datasheet, chapter 1:

http://www.freescale.com/files/32bit/doc/data_sheet/KL25P80M48SF0.pdf

Copied from there for reference:

1 Ordering parts 1.1 Determining valid orderable parts Valid orderable part numbers are provided on the web. To determine the orderable part numbers for this device, go to www.freescale.com and perform a part number search for the following device numbers: PKL25 and MKL25 2 Part identification 2.1 Description Part numbers for the chip have fields that identify the specific part. You can use the values of these fields to determine the specific part you have received. 2.2 Format Part numbers for this device have the following format: Q KL A FFF R T PP CC N 2.3 Fields This table lists the possible values for each field in the part number (not all combinations are valid): Field Description Values Q Qualification status • M = Fully qualified, general market flow • P = Prequalification KL Kinetis family • KL25 A Key attribute • Z = Cortex-M0+ FFF Program flash memory size • 32 = 32 KB • 64 = 64 KB • 128 = 128 KB • 256 = 256 KB Table continues on the next page... Ordering parts KL25 Sub-Family Data Sheet Data Sheet, Rev. 3, 9/19/2012. Freescale Semiconductor, Inc. 3 Field Description Values R Silicon revision • (Blank) = Main • A = Revision after main T Temperature range (°C) • V = –40 to 105 PP Package identifier • FM = 32 QFN (5 mm x 5 mm) • FT = 48 QFN (7 mm x 7 mm) • LH = 64 LQFP (10 mm x 10 mm) • LK = 80 LQFP (12 mm x 12 mm) CC Maximum CPU frequency (MHz) • 4 = 48 MHz N Packaging type • R = Tape and reel • (Blank) = Trays

Regards, c0170