NXP MK20DX256VLL7

ARM® Cortex®-M472MHz256KB（256K x 8）

Overview

The MK20DX256VLL7 is a 32-bit Kinetis K2x Microcontroller with USB control, based on ARM Cortex-M4 RISC architecture core operates at a maximum frequency of 72MHz. The device incorporates 288kB internal flash, 66kB internal RAM, 2kB EEPROM, two 16-bit SAR A/D converter, one 12-bit D/A converter and 66 general-purpose I/O pins. This device also features communication interfaces like five UART modules, two SPI modules, two I2C modules and one I2S module.

Features

• Operating Characteristics

  Voltage range: 1.71 to 3.6 V

  Flash write voltage range: 1.71 to 3.6 V

  Temperature range (ambient): -40 to 105°C

• Clocks

  32 kHz crystal oscillator

  3 to 32 MHz crystal oscillator

  Multi-purpose clock generator

• System peripherals

  Software watchdog

  Low-leakage wakeup unit

  External watchdog monitor

  16-channel DMA controller, supporting up to 63 request sources

  Multiple low-power modes to provide power optimization based on application requirements

• Security and integrity modules

  128-bit unique identification (ID) number per chip

  Hardware CRC module to support fast cyclic redundancy checks

• Human-machine interface

  General-purpose input/output

  Low-power hardware touch sensor interface (TSI)

• Analog modules

  12-bit DAC

  Voltage reference
  

  Two 16-bit SAR ADCs

  Programmable gain amplifier (PGA) (up to x64) integrated into each ADC

  Three analog comparators (CMP) containing a 6-bit DAC and programmable reference input

• Timers

  Real-time clock
  

  16-bit low-power timer

  Periodic interrupt timers
  

  Carrier modulator transmitter

  Programmable delay block

  Eight-channel motor control/general purpose/PWM timer

  Two 2-channel quadrature decoder/general purpose timers

• Communication interfaces

  I2S module
  

  Two SPI modules

  Two I2C modules

  Five UART modules

  Controller Area Network (CAN) module

  USB full-/low-speed On-the-Go controller with on-chip transceiver

Applications

• Automotive

• Personal electronics

• Communications equipment