Freescale Semiconductor, Inc. Document Number K21P144M120SF5V2 Data Sheet: Technical Data Rev 4, 05/2014 Kinetis K21F Sub-Family Data MK21FX512AVLQ12 MK21FN1M0AVLQ12 Sheet MK21FX512AVMD12 120 MHz ARM Cortex-M4-based Microcontroller with FPU MK21FN1M0AVMD12 The K21 product family members are optimized for cost-sensitive applications requiring low-power, USB connectivity, processing efficiency with floating point unit and the need for extensive tamper protection, such as Electronic Point of Sales. It shares the comprehensive enablement and scalability of the Kinetis family. This product offers: Up to 1 MB of flash memory with up to 128 KB of SRAM DryIce Tamper Detection with active/passive pin, 144 LQFP 144 BGA temperature, clock, supply voltage monitoring 20 x 20 x 1.6 mm Pitch 13 x 13 x 1.7 mm Pitch Run power consumption down to 279 A/MHz. Static 0.5 mm 1 mm power consumption down to 5.1 A with full state retention and 5 s wakeup. Lowest Static mode down to 268 nA USB LS/FS OTG 2.0 with embedded 3.3 V, 120 mA LDO voltage regulator Performance Communication interfaces Up to 120 MHz ARM Cortex-M4-based core with DSP USB full-/low-speed On-the-Go controller instructions delivering 1.25 Dhrystone MIPS per MHz USB Device Charger detect Controller Area Network (CAN) module Memories and memory interfaces Three SPI modules Up to 1 MB program flash memory and 128 KB RAM Three I2C modules FlexBus external bus interface Six UART modules Secure Digital host controller (SDHC) System peripherals I2S module Multiple low-power modes low leakage wakeup unit Memory protection unit with multi-master protection Timers 16-channel DMA controller Two 8-channel Flex-Timers (PWM/Motor Control) External watchdog monitor and software watchdog Two 2-channel Flex-Timers (PWM/Quad Decoder) Periodic interrupt timers and 16-bit low-power timer Security and integrity modules Carrier modulator transmitter Hardware CRC module Real-time clock Tamper detect and secure storage Programmable delay block Hardware random-number generator Hardware encryption Clocks 128-bit unique identification (ID) number per chip 3 to 32 MHz and 32 kHz crystal oscillator PLL, FLL, and multiple internal oscillators Analog modules Two 16-bit SAR ADCs Operating Characteristics Two 12-bit DACs Voltage range: 1.71 to 3.6 V Three analog comparators (CMP) Flash write voltage range: 1.71 to 3.6 V Voltage reference Temperature range (ambient): 40 to 105C Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. 20132014 Freescale Semiconductor, Inc. All rights reserved.1 Ordering Information Part Number Memory Maximum number of I O s Flash (KB) SRAM (KB) MK21FX512AVLQ12 512 KB 128 104 MK21FN1M0AVLQ12 1 MB 128 104 MK21FX512AVMD12 512 KB 128 104 MK21FN1M0AVMD12 1 MB 128 104 1. To confirm current availability of ordererable part numbers, go to