• Floating Point Unit (FPU)
• Embedded Trace Module (ETM) with instruction trace stream
• Core Sight Embedded Trace Buffer (ETB)
• Error Correction Code (ECC)
• Dual bank with Read-While-Write (RWW) support
• EEPROM hardware emulation
• Error Correction Code (ECC) RAM option
• Up to 4 KB of Tightly Coupled Memory (TCM)
• Up to 8 KB additional SRAM with backup retention capability
• Power-on Reset (POR) and Brown-out detection (BOD)
• Internal and external clock options
• External Interrupt Controller (EIC)
• Two-pin Serial Wire Debug (SWD) programming, test, and debugging interface
• Five Low Power Modes (Idle, Standby, Hibernate, Backup, and Off )
• Sleep Walking peripherals.
• Battery backup support
• Embedded Buck/LDO regulator supporting on-the-fly selection.
• 65µA/MHz active power consumption.
• Five confidential modes of operation (ECB, CBC, CFB, OFB, CTR)
• True Random Number Generator (TRNG)
• RSA, DSA
• Elliptic Curves Cryptography (ECC) ECC GF(2n), ECC GF(p)
• Integrity Check Module (ICM) based on Secure Hash Algorithm (SHA1, SHA224, SHA256), DMA
• 32-channel Direct Memory Access Controller (DMAC)
• Compatibility with SD and SDHC Memory Card Specification Version 3.01
• Compatibility with SDIO Specification Version 3.0
• Compliant with JDEC specification, MMC memory cards V4.51
• eXecute-In-Place (XIP) support
• Up to 75 MHz SDR operation and DDR support
• Embedded host and device function
• USART with full-duplex and single-wire half-duplex configuration
• ISO7816
• I2C up to 3.4MHz
• SPI
• LIN master/slave
• RS485
• SPI inter-byte space
• One two-channel Inter-IC Sound Interface (I2S)
•  Up to 14-bit parallel capture mode
•  Up to 256 channel capacitive touch and proximity sensing
• 32-channel Event System
• 16-bit ,32-bit or 8-bit TC with two compare/capture channels
•  Two 24-bit Timer/Counters for Control (TCC), with extended functions:
• Up to 5 wake-up pins with tamper detection and de-bouncing filter
• Watchdog Timer (WDT) with Window mode
• CRC-32 generator
• Position Decoder (PDEC)
• Frequency meter (FREQM)
• One Configurable Custom Logic (CCL)
• Differential and single-ended input
• Automatic offset and gain error compensation
• Oversampling and decimation in hardware to support 13-, 14-, 15-, or 16-bit resolution
• Dual 12-bit, 1 MSPS Output Digital-to-Analog Converter (DAC)
•  Two Analog Comparators (AC) with Window Compare function
• One temperature sensor
• 51  programmable I/O pins
• 1.71V – 3.6V
• 64-pin QFN,TQFP,WLCSP

The SAM D51 high performance micro-controller series is targeted for general purpose applications using the 32-bit ARM® Cortex®-M4 processor with Floating Point Unit (FPU), running up to 120 MHz ,up to 1 MB Dual Panel Flash with ECC, and up to 256 KB of SRAM with ECC .

Series offers excellent features with class leading power performance ideal for multiple market segments.

Key features

• Quad Serial Peripheral Interface(QSPI) with Execute in Place (XIP) Support.
• Up to 2 Secure Digital Host Controller (SDHC)
• Inter-IC Sound(I2S)Controller for Audio
• Peripheral Touch Controller (PTC) supporting up to 256 channels of capacitive touch .
• Full speed USB with embedded Host/device.
• Supports 5 Low power modes with class leading 65µA/MHz Active Power Performance.
• Integrated security including Asymmetric and Symmetric Crypto hardware acceleration
• Serial communication (SERCOM) ports configurable as UART/USART, ISO 7816, SPI or I²C 

Supported by MPLAB X IDE and MPLAB Harmony.

Functional Safety

• This device supports the ISO 26262 (ASIL B) functional safety standard.  
• The Functional Safety Manual, FMEDA and information on the Diagnostic Software are available under NDA through the request form on the 32-bit Microcontrollers Functional Safety web page.

Learn more about 32-bit MCUs with Functional Safety capabilities including device hardware and certified software libraries.