The ATSAME70N21A-AN is a SMART SAM E70 series 32-bit Flash Microcontroller based on the high-performance ARM Cortex-M7 RISC (5.04 CoreMark/MHz) processor with floating point unit (FPU). It operates at a maximum speed of 300MHz and feature up to 2048kB of flash, up to 384kB of multi-port SRAM and configurable instruction and data tightly couple memories to leverage the advanced DSP capabilities of the core. SAME70N21 features multiple networking/connectivity peripherals, including CAN-FD interface and one 10/100Mbps Ethernet MAC with specific hardware support for audio video bridging (AVB). Additional communication interfaces include a HS USB host and device, a HS SDCard/SDIO/MMC interface, USARTs, SPIs and multiple TWIs. Analog features include dual 2Msps 12-bit ADCs with analog front end offering offset and gain error correction and 2Msps 12-bit DAC.
● ARM Cortex-M7 running at up to 300MHz
● 16kB of ICache and 16kB of DCache with error code correction (ECC)
● Simple and double precision hardware floating point unit (FPU)
● Memory protection unit (MPU) with 16 zones
● DSP instructions, Thumb®-2 instruction set
● Embedded trace module (ETM) with instruction trace stream, Trace port interface unit (TPIU)
● Embedded voltage regulator for single-supply operation
● Power-on-reset (POR), brown-out detector (BOD) and dual watchdog for safe operation
● One 500MHz PLL for system clock, one 480MHz PLL for USB high-speed operations
● Temperature sensor
● One dual-port 24-channel Central DMA controller (XDMAC)
● 3 to 20MHz Resonator oscillators
● RTC with Gregorian calendar mode, waveform generation in low-power modes
● RTC counter calibration circuitry compensates for 32.768kHz crystal frequency variations
● 32-bit low-power Real-time Timer (RTT)
● True random number generator (TRNG)
● Integrity check monitor (ICM). supports secure hash algorithm SHA1, SHA224 and SHA256
● Five parallel input/output controllers (PIO)
● One analog comparator with flexible input selection, selectable input hysteresis
● Low-power sleep, wait and backup modes
