Описание
The KL27 series is optimized for cost-sensitive and batterypowered applications requiring low-power USB connectivity. The product offers: USB FS 2.0 device without requiring an external crystal Embedded ROM with boot loader for flexible program upgrade High accuracy internal voltage and clock reference FlexIO to support any standard and customized serial peripheral emulation Hardware CRC module Down to 46 µA/MHz in very low power run mode and 1.68 µA in stop mode (RAM + RTC retained)
- Core Processor
- ARM® Cortex®-M0+ core up to 48 MHz
- Memories
- 32/64 KB program flash memory
- 8/16 KB SRAM
- 16 KB ROM with build-in bootloader
- 32-byte backup register
- System
- 4-channel asynchronous DMA controller
- Watchdog
- Low-leakage wakeup unit
- Two-pin SWD (serial wire debug) programming and debug interface
- Micro trace buffer
- Bit manipulation engine
- Interrupt controller
- Clocks
- 48 MHz high accuracy (up to 0.5%) internal reference clock
- 8 MHz high accuracy (up to 3%) internal reference clock
- 1 kHz reference clock active under all low power modes (except VLLS0)
- 32–40 kHz and 3–32 MHz crystal oscillator
- Operating Characteristics
- Voltage range: 1.71 to 3.6 V
- Flash write voltage range: 1.71 to 3.6 V
- Temperature range: –40 to 105 °C
- Packages
- 64 LQFP 10mm x 10mm, 0.5mm pitch, 1.6mm thickness
- 36 XFBGA 3.5mm x 3.5mm, 0.5mm pitch, 0.5mm thickness
- 32 QFN 5mm x 5mm, 0.5mm pitch, 0.65mm thickness
- 64 MAPBGA 5mm x 5mm, 0.5mm pitch, 1.23mm thickness (Package Your Way)
- 48 QFN 7mm x 7mm, 0.5mm pitch, 0.65mm thickness (Package Your Way)
- Peripherals
- USB full-speed 2.0 device controller supporting crystal-less operation and keeping connections alive under ultra-low power
- One UART module supporting ISO7816, operating up to 1.5 Mbit/s
- Two low-power UART modules supporting asynchronous operation in low-power modes
- Two I2C modules supporting up to 1 Mbit/s
- Two 16-bit SPI modules supporting up to 24 Mbit/s for SPI1 and 12 Mbit/s for SPI0
- One FlexIO module supporting emulation of additional UART, SPI, I2C, I2S, PWM and other serial modules, etc.
- One 16-bit ADC module with high accurate internal voltage reference, up to 17 channels and up to 818 ksps at equal to or less than 13-bit mode
- High-speed analog comparator containing a 6-bit DAC for programmable reference input
- Timers
- One 6-channel Timer/PWM module
- Two 2-channel Timer/PWM modules
- One low-power timer
- Periodic interrupt timer
- Real time clock
- Security and Integrity
- 80-bit unique identification number per chip
- Advanced flash security
- Hardware CRC module
- I/O
- Up to 51 general-purpose input/output pins
- Low Power
- Down to 46 µA/MHz in very low power run mode
- Down to 1.68 µA in stop mode (RAM + RTC retained)
- Six flexible static modes
