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Home > Embedded ICs > 32bit MCU > ATSAME70J20A-AN


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ATSAME70J20A-AN Overview

The MicrochipSAME70J20 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 1024 Kbytes of Flash, up to 384 Kbytes of multi-port SRAM and configurable Instruction and Data Tightly Couple Memories to leverage the advanced DSP capabilities of the core. SAME70J20 features multiple networking/connectivity peripherals, including CAN-FD interface and one 1O/100Mbps Ethernet MAC with specific hardware support for Audio Video Bridging (AVB). Additional communication interfaces include a FS USB Host and Device, USARTs, SPIs and multiple TWIs.Analog features include single 2Msps 12-bit ADCs with analog front end offering offset and gain error correction, and 2Msps 12-bit DAC.

The SAME70J20 is available in 64-pin QFP package options.

Note: While there are no plans to change the availability statusof Revision A for this device, new designs should use Revision B for prototypesand production. Supported by MPLAB X IDE and MPLAB Harmony.


      • Core
        • ARM® Cortex®-M7 running up to 300MHz
        • 16 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 zones
        • DSP Instructions, Thumb®-2 Instruction Set
        • Embedded Trace Module (ETM) with instruction trace stream, including Trace Port Interface Unit (TPIU)
      • Memories
        • 1024 Kbytes embedded Flash with unique identifier and user signature for user-defined data
        • 384 Kbytes embedded Multi-port SRAM
        • Tightly 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 routines
        • 16-bit Static Memory Controller (SMC) with support for SRAM, PSRAM, LCD module, NOR and NAND Flash with on-the-fly scrambling
        • 16-bit SDRAM Controller (SDRAMC) interfacing up to 256 MB and with on-the-fly scrambling
      • System
        • Embedded voltage regulator for single-supply operation
        • Power-on-Reset (POR), Brown-out Detector (BOD) and Dual Watchdog for safe operation
        • Quartz 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 clock
        • RTC with Gregorian calendar mode, waveform generation in low-power modes
        • RTC counter calibration circuitry compensates for 32.768 kHz crystal frequency variations
        • 32-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 operations
        • Temperature Sensor
        • One 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 enabled
        • Ultra-low-power RTC and RTT
        • 1 Kbyte of backup RAM (BRAM) with dedicated regulator
      • Peripherals
        • One Ethernet MAC (GMAC) 10/100 Mbps in MII mode and RMII with dedicated DMA. IEEE1588 PTP frames and 802.3az Energy-efficiency support. Ethernet AVB support with IEEE802.1AS Timestamping and IEEE802.1Qav credit-based traffic-shaping hardware support
        • USB 2.0 Device/Mini Host High-speed (USBHS) at 480 Mbps, 4-Kbyte FIFO, up to 10 bidirectional endpoints, dedicated DMA
        • 12-bit ITU-R BT. 601/656 Image Sensor Interface (ISI)
        • Two master Controller Area Networks (MCAN) with Flexible Data Rate (CAN-FD) with SRAM-based mailboxes, time- and event-triggered transmission
          • ISO CAN FD; ISO 1189801:2015 (Revision B only)
        • Three USARTs. USART0/1/2 support LIN mode, ISO7816, IrDA®, RS-485, SPI, Manchester and Modem modes; USART1 supports LON mode.
        • Five 2-wire UARTs with SleepWalking™ support
        • Three Two-Wire Interfaces (TWIHS) (I2C-compatible) with SleepWalking™ support
        • Quad I/O Serial Peripheral Interface (QSPI) interfacing up to 256 MB Flash and with eXecute-In-Place and on-the-fly scrambling
        • Two Serial Peripheral Interfaces (SPI)
        • One Serial Synchronous Controller (SSC) with I2S and TDM support
        • Two Inter-IC Sound Controllers (I2SC)
        • One High-speed Multimedia Card Interface (HSMCI) (SDIO/SD Card/e.MMC)
        • Four Three-Channel 16-bit Timer/Counters (TC) with Capture, Waveform, Compare and PWM modes, constant on time. Quadrature decoder logic and 2-bit Gray Up/Down Counter for stepper motor
        • Two 4-channel 16-bit PWMs with complementary outputs, Dead Time Generator and eight fault inputs per PWM for motor control, two external triggers to manage power factor correction (PFC), DC-DC and lighting control.
        • Two Analog Front-End Controllers (AFEC), each supporting up to 12 channels with differential input mode and programmable gain stage, allowing dual sample-and-hold at up to 1.7 Msps. Offset and gain error correction feature.
        • One 2-channel 12-bit 1 Msps-per-channel Digital-to-Analog Controller (DAC) with Differential and Over Sampling modes
        • One Analog Comparator Controller (ACC) with flexible input selection, selectable input hysteresis
      • Cryptography
        • True Random Number Generator (TRNG)
        • AES: 256-, 192-, 128-bit Key Algorithm, Compliant with FIPS PUB-197 Specifications
        • Integrity Check Monitor (ICM). Supports Secure Hash Algorithm SHA1, SHA224 and SHA256.
      • I/O
        • Up to 114 I/O lines with external interrupt capability (edge- or level-sensitivity), debouncing, glitch filtering and On-die Series Resistor Termination
        • Five Parallel Input/output Controllers (PIO)
      • Voltage
        • Single Supply voltage from 1.7V to 3.6V for Industrial Temperature Devices
      • Packages
        • LQFP64, 64-lead LQFP, 10 x 10 mm, pitch 0.5 mm






  • Core Processor ARM Cortex M7

  • Speed 300MHz

  • Operating Temperature -40℃ ~ 105℃ (TA)

  • Program Memory Type FLASH

  • RAM Size 384K x 8

  • Number of I/O 44

  • Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT

  • Mounting Type Surface Mount

  • Oscillator Type Internal

  • Supplier Device Package 64-LQFP (10x10)

  • Package / Case 64-LQFP

  • Core Size 32-Bit

  • Connectivity CANbus, Ethernet, I2C, IrDA, LINbus, SPI, UART/USART, USB

  • Program Memory Size 1MB (1M x 8)

  • Data Converters A/D 5x12b; D/A 1x12b

  • Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V

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