Datasheet

Features
4.1 Common features among the K20 family
All devices within the K20 family features the following at a minimum:
Table 1. Common features among all K20 devices
Operating characteristics • Voltage range 1.71V - 3.6V
• Flash memory programming down to 1.71V
• Temperature range (T
A
) -40 to 105°C
• Flexible modes of operation
Core features • Next generation 32-bit ARM Cortex-M4 core
• Supports DSP instructions
• Nested vectored interrupt controller (NVIC)
• Asynchronous wake-up interrupt controller (AWIC)
• Debug & trace capability
• 2-pin serial wire debug (SWD)
• IEEE 1149.1 Joint Test Action Group (JTAG)
• IEEE 1149.7 compact JTAG (cJTAG)
• Trace port interface unit (TPIU)
• Flash patch and breakpoint (FPB)
• Data watchpoint and trace (DWT)
• Instrumentation trace macrocell (ITM)
System and power management • Software and hardware watchdog with external monitor
pin
• DMA controller
• Low-leakage wake-up unit (LLWU)
• Power management controller with 10 different power
modes
• Non-maskable interrupt (NMI)
• 128-bit unique identification (ID) number per chip
Clocks • Multi-purpose clock generator
• PLL and FLL operation
• Internal reference clocks
• 3MHz to 32MHz crystal oscillator
• 32kHz to 40kHz crystal oscillator
• Internal 1kHz low power oscillator
• DC to 50MHz external square wave input clock
Memories and Memory Interfaces • FlexMemory consisting of FlexNVM (non-volatile flash
memory that can execute program code, store data, or
backup EEPROM data) or FlexRAM (RAM memory that
can be used as traditional RAM or as high-endurance
EEPROM storage, and also accelerates flash
programming)
• Flash security and protection features
• Serial flash programming interface (EzPort)
Security and integrity • Cyclic redundancy check (CRC)
Analog • 16-bit SAR ADC
• High-speed Analog comparator (CMP) with 6-bit DAC
Table continues on the next page...
4
Features
K20 Family Product Brief, Rev. 11, 08/2012
Freescale Semiconductor, Inc. 5