Datasheet
The Freescale Tower System
MCU/MPU Module
• Tower controller board 
• Works stand-alone or 
in Tower System 
• Features new on-board 
debug interface for 
easy programming 
and debugging via 
mini-B USB cable
Secondary Elevator
• Additional serial and 
expansion buses and 
peripheral interfaces
Peripheral Module
•   (i.e. serial, prototype, etc.)
Size
•   Tower is approx. 3.5” H x 3.5” W x 3.5” D 
when fully assembled
Primary Elevator
•   Common serial 
and expansion 
bus signals 
•   Two 2x80 connectors 
on backside for easy 
signal access and 
side-mounting board 
(i.e. LCD module) 
•   Power regulation 
circuitry 
•   Standardized signal 
assignments
Board Connectors
•   Four card-edge 
connectors 
•   Uses PCI Express
®
connectors 
(x16, 90 mm/3.5” 
long, 164 pins)
Figure 4. Freescale's Tower System
The following Tower modules are available for the Kinetis families. For more information on the Tower System see http://
www.freescale.com/tower.
Table 11. Tower Modules for Kinetis MCU Families
Microcontroller Modules Features
Kinetis K10/K20 Family MCU module K10/K20 family 512 KB flash MCU in 81 MAPBGA package
On-board JTAG debug interface
Access to all features including Tamper Detect and Cryptographic
Acceleration Unit
Kinetis K70 Family MCU Module K70 family 1 MB flash MCU in 256 MAPBGA package
On-board JTAG debug interface
Access to all features including Ethernet, USB, and graphical LCD
Kinetis K60 Family MCU Module K60 family 1MB flash MCU in 144 LQFP package
On-board JTAG debug interface
Access to all features including Ethernet, USB, and graphical LCD
Table continues on the next page...
Developer Environment
K20 Family Product Brief, Rev. 11, 08/2012
Freescale Semiconductor, Inc. 49










