NXP MK21DN512VMC5 Microcontrollers

RAM: 64kx8

Core: ARM(R) Cortex(R)-M4

FLASH: 512KB

Speed: 50MHz

I/O port: 64

Interface: I2C/IrDA/SPI/UART/USART/USB/USB OTG

Mounting Type: Surface Mount

Number of bits: 32bit

Peripheral (LCD): No

Peripheral (USB): Yes

Operating Voltage: 1.71 to 3.6V

Peripheral (Ethernet): No

Peripheral (MOTOR Control): Yes

Operating temperature range: -40 to 105C

Datasheet