ATSAME70Q21B-CFN Family Name, Microchip ATSAME70Q21B-CFN, 32bit ARM Cortex M7 Microcontroller, SAME70, 300MHz, 2048 kB Flash, 144-Pin UFBGA/VFBGA

The Microchip SAME70Q21 devices are members of a flash microcontrollers family based on the high-performance 32-bit ARM Cortex-M7 processor with Floating Point Unit (FPU). These devices operate at up to 300MHz and feature up to 2048 Kb of Flash, up to 384 Kb of multi-port SRAM and configurable Instruction and Data Tightly Couple Memories to leverage the advanced DSP capabilities of the core. SAME70Q21 features multiple networking/connectivity peripherals, including CAN-FD interface and one 1O/100Mbps Ethernet MAC with specific hardware support for Audio Video Bridging (AVB).
Core
ARM® Cortex®-M7 running up to 300MHz16 Kbytes of ICache and 16 Kbytes of DCache with Error Code Correction (ECC)Single- and double-precision HW Floating Point Unit (FPU)Memory Protection Unit (MPU) with 16 zonesDSP Instructions, Thumb®-2 Instruction SetEmbedded Trace Module (ETM) with instruction trace stream, including Trace Port Interface Unit (TPIU)
Memories
2048 Kbytes embedded Flash with unique identifier and user signature for user-defined data384 Kbytes embedded Multi-port SRAMTightly Coupled Memory (TCM) interface with four configurations (disabled, 2 x 32 Kbytes, 2 x 64 Kbytes, 2 x 128 Kbytes)16 Kbytes ROM with embedded Bootloader routines (UART0, USB) and IAP routines16-bit Static Memory Controller (SMC) with support for SRAM, PSRAM, LCD module, NOR and NAND Flash with on-the-fly scrambling16-bit SDRAM Controller (SDRAMC) interfacing up to 256 MB and with on-the-fly scrambling
System
Embedded voltage regulator for single-supply operationPower-on-Reset (POR), Brown-out Detector (BOD) and Dual Watchdog for safe operationQuartz or ceramic resonator oscillators: 3 to 20 MHz main oscillator with failure detection, 12 MHz or 16 MHz needed for USB operations. Optional low-power 32.768 kHz for RTC or device clockRTC with Gregorian calendar mode, waveform generation in low-power modesRTC counter calibration circuitry compensates for 32.768 kHz crystal frequency variations32-bit low-power Real-time Timer (RTT)High-precision Main RC oscillator with 12 MHz default frequency for device startup. In-application trimming access for frequency adjustment. 8/12 MHz are factory-trimmed.32.768 kHz crystal oscillator or Slow RC oscillator as source of low-power mode device clock (SLCK)One 500 MHz PLL for system clock, one 480 MHz PLL for USB high-speed operationsTemperature SensorOne dual-port 24-channel central DMA Controller (XDMAC)
Low-Power Features
Low-power Sleep, Wait and Backup modes, with typical power consumption down to 1.1 μA in Backup mode with RTC, RTT and wakeup logic enabledUltra-low-power RTC and RTT1 Kbyte of backup RAM (BRAM) with dedicated regulator