The K22 product family members are optimized for cost-sensitive applications requiring low-power, USB connectivity, and processing efficiency with a floating-point unit. These devices share the comprehensive enablement and scalability of the Kinetis family.

Performance
    • 100 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz
Memories and memory interfaces
    • 128 KB of embedded flash and 24 KB of RAM
    • Serial programming interface(EzPort)
    • Pre-programmed Kinetis flashloader for one-time, insystem factory programming
System peripherals
    • Flexible low-power modes, multiple wakeup sources
    • 4-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 FLL
Security and integrity modules
    • Hardware CRC module
    • 128-bit unique identification (ID) number per chip
    • Flash access control to protect proprietary software
Human-machine interface
    • Up to 67 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
    • USB full-speed device crystal-less operation
    • Two SPI modules
    • Three UART modules and one low-power UART
    • Two I2C: 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