Analog Devices Inc.

Ultra Low Power ARM Cortex-M4F MCU with Integrated Power Management Features: EEMBC ULPMark™-CP score (3 V): 189 Ultra low power active and hibernate modes Active mode dynamic current: 41 μA/MHz (typical) Flexi mode: 400 μA (typical) Hibernate mode: 0.65 μA (typical) Shutdown mode: 50 nA (typical) Shutdown mode (fast wake-up): 0.20 μA (typical) ARM Cortex-M4F processor at 52 MHz with FPU, MPU, ITM with SWD interface Power management Single-supply operation (connected to VBAT pins): 1.74 V to 3.6 V Optional buck converter for improved efficiency Memory options 512 kB of embedded flash memory with ECC 4 kB of cache memory to reduce active power 128 kB of configurable system SRAM with parity Safety Watchdog with dedicated on-chip oscillator Hardware CRC with programmable polynomial Multiparity bit protected SRAM ECC protected embedded flash Security Hardware cryptographic accelerator supporting AES-128, AES-256, and SHA-256 Protected key storage in flash, SHA-256-based keyed HMAC and key wrap and unwrap User code protection TRNG Digital peripherals 3 SPI interfaces to enable glueless interface to sensors, radios, and converters 1 I2C and 2 UART peripheral interfaces SPORT for natively interfacing with converters and radios Programmable GPIOs (44 in LFCSP and 51 in WLCSP) 3 general-purpose timers with PWM support RGB timer for driving RGB LED RTC0 for time keeping RTC1 with SensorStrobe and time stamping Programmable beeper 27-channel DMA controller Clocking features 26 MHz clock: on-chip oscillator, external crystal oscillator, SYS_CLKIN for external clock, and integrated PLL 32 kHz clock: on-chip oscillator and low power crystal oscillator Clock fail detection for external crystals Analog peripherals 12-bit SAR ADC, 1.8 MSPS, 8 channels, and digital comparator