The Freescale Semiconductor Kinetis TWR-K40X256 and TWR-K60N512 are Tower Controller Modules compatible with the Freescale Tower System. The TWR-K40X256 Tower Controller Module can function as a stand-alone, low-cost platform for the evaluation of the Freescale Semiconductor Kinetis K30 and K40 families of microcontrollers (MCUs). The TWR-K40X256 includes the TWRPI-SLCD segment LCD daughter card and features the Kinetis K40 low-power MCU based on the ARM Cortex™-M4 architecture with USB 2.0 full-speed OTG and segment LCD display controllers. The TWR-K60N512 Tower Controller Module can function as a stand-alone, low-cost platform for the evaluation of the Freescale Semiconductor Kinetis K10, K20, and K60 family of MCUs. The TWR-K60N512 features the Kinetis K60 low-power MCU based on the ARM Cortex-M4 architecture with USB 2.0 full-speed OTG controller and 10/100 Mbps Ethernet MAC. The TWR-K60N512 and TWR-K40X256 are available as a kit with the Tower Elevator Modules and the Tower Serial Module. These Kinetis Tower Controller Modules can be combined with other Freescale Tower peripheral modules to create development platforms for a wide variety of applications.