Kinetis® K22：120MHz Cortex-M4F 256KB闪存(64-121引脚)

Kinetis K22F 256 KB Flash 120 MHz ARM® Cortex®-M4-Based Microcontroller with FPU The Kinetis K22 product family members are optimized for costsensitive applications requiring low-power, USB connectivity, high peripheral integration and processing efficiency with floating point unit. These devices share the comprehensive enablement and scalability of the Kinetis family. This product offers: • Run power consumption down to 153 µA/MHz and static power consumption down to 2.6 µA with full state retention and 6 µs wakeup. Lowest static mode down to 120 nA • USB LS/FS OTG 2.0 with embedded 3.3 V, 120 mA LDO voltage regulator. USB FS device crystal-less functionality. Performance • 120 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz Memories and memory interfaces • 256 KB of embedded flash and 48 KB of RAM • Serial programming interface (EzPort) • Preprogrammed Kinetis flashloader for one-time, insystem factory programming System peripherals • Flexible low-power modes, multiple wake up sources • 16-channel DMA controller • Independent external and software watchdog monitor Clocks • Two crystal oscillators: 32 kHz (RTC) and 32-40 kHz or 3-32 MHz • Three internal oscillators: 32 kHz, 4 MHz, and 48 MHz • Multi-purpose clock generator with PLL and FLL Security and integrity modules • Hardware CRC module • 128-bit unique identification (ID) number per chip • Hardware random-number generator • Flash access control to protect proprietary software Human-machine interface • Up to 70 general-purpose I/O (GPIO) Analog modules • Two 16-bit SAR ADCs (1.2 MS/s in 12bit mode) • One 12-bit DAC • Two analog comparators (CMP) with 6- bit DAC • Accurate internal voltage reference Communication interfaces • USB LS/FS OTG 2.0 with on-chip transceiver and USB LDO voltage regulator • USB full-speed device crystal-less operation • Two SPI modules • Three UART modules and one low-power UART • Two I2C modules: Support for up to 1 Mbps operation • I2S module Timers • One 8-channel general purpose/ PWM timer • Two 2-channel general purpose timers with quadrature decoder functionality • Periodic interrupt timers • 16-bit low-power timer • Real-time clock with independent power domain • Programmable delay block Operating Characteristics • Voltage range (including flash writes): 1.71 to 3.6 V • Temperature range (ambient): -40 to 105°C