Описание
The Microchip | SMART SAM D21L is a series of low-power microcontrollers using the 32-bit ARM Cortex -M0+ processor. The SAM D21L devices are offered in 32- and 48-pins packages with up 64KB Flash and 8KB of SRAM and are designed to operate at a maximum frequency of 48MHz and reach 2.46 Coremark/MHz. They are designed for simple and intuitive migration with identical peripheral modules, hex compatible code, identical linear address map and pin compatible migration paths between all devices in the product series. All devices include intelligent and flexible peripherals, Microchip Event System for inter-peripheral signaling, and support for capacitive touch button, slider and wheel user interfaces.
- Processor
- ARM Cortex-M0+ CPU running at up to 48MH
- Single-cycle hardware multiplier
- Micro Trace Buffer (MTB)
- Memories
- 32/64KB in-system self-programmable Flash
- 4/8KB SRAM Memory
- System
- Power-on reset (POR) and brown-out detection (BOD)
- Internal and external clock options with 48MH
- Digital Frequency Locked Loop (DFLL48M) and 48MH
- to 96MH
- Fractional Digital Phase Locked Loop (FDPLL96M)
- External Interrupt Controller (EIC)
- 16 external interrupts
- One non-maskable interrupt
- Two-pin Serial Wire Debug (SWD) programming, test and debugging interface
- Low Power
- Idle and standby sleep modes
- SleepWalking peripherals
- Peripherals
- 12-channel Direct Memory Access Controller (DMAC)
- 12-channel Event System
- Up to five 16-bit Timer/Counters (TC), configurable as either:
- One 16-bit TC with compare/capture channels
- One 8-bit TC with compare/capture channels
- One 32-bit TC with compare/capture channels, by using two TCs
- Three 24-bit Timer/Counters for Control (TCC), with extended functions:
- Up to four compare channels with optional complementary output
- Generation of synchroni
- ed pulse width modulation (PWM) pattern across port pins
- Deterministic fault protection, fast decay and configurable dead-time between complementary output
- Dithering that increase resolution with up to 5 bit and reduce quanti
- ation error
- 32-bit Real Time Counter (RTC) with clock/calendar function
- Watchdog Timer (WDT)
- CRC-32 generator
- Up to five Serial Communication Interfaces (SERCOM), each configurable to operate as either:
- USART with full-duplex and single-wire half-duplex configuration
- I2C up to 3.4MH
- SPI
- LIN slave
- One 12-bit, 350ksps Analog-to-Digital Converter (ADC) with up to 18 channels
- Differential and single-ended input
- 1/2x to 16x programmable gain stage
- Automatic offset and gain error compensation
- Oversampling and decimation in hardware to support 13-, 14-, 15- or 16-bit resolution
- 10-bit, 350ksps Digital-to-Analog Converter (DAC)
- Four Analog Comparators (AC) with window compare function
- I/O
- Up to 38 programmable I/O pins
- Packages
- 32-pin TQFP, QFN
- 48-pin QFN
- Operating Voltage
- 1.62V – 3.63V
