Microchip Technology SAM3N ARM® Cortex®-M3 Flash-Based Microcontrollers

Microchip Technology SAM3N ARM® Cortex®-M3 Flash-Based Microcontrollers intelligently combine high-performance architecture, peripherals, and power-saving techniques to deliver uncompromised performance. Available in multiple memory densities, pin counts, and package types, the SAM3N offers a scalable solution to meet application requirements. It is supported by a complete set of software libraries, project examples, tools, and a worldwide ecosystem to shorten development cycle time. Microchip Technology SAM3N ARM® Cortex®-M3 Flash-Based Microcontrollers are pin-to-pin compatible with the SAM7S and the SAM3S, and the SAM3N facilitates migration within the family.


  • ARM® Cortex®-M3 revision 2.0 Core running at up to 48MHz
  • Memories
    • From 4kb to 24kb embedded SRAM
    • 16kb ROM with embedded bootloader routines (UART) and IAP routines
  • System
    • Embedded voltage regulator for single supply operation
    • Power-on-Reset (POR), Brown-out Detector (BOD) and Watchdog for safe operation
    • Quartz or ceramic resonator oscillators: 3MHz to 20MHz main power with Failure Detection and optional low power 32.768kHz for RTC or device clock
    • High precision 8MHz/12MHz factory trimmed internal RC oscillator with 4MHz default frequency for device startup; In-application trimming access for frequency adjustment
    • Slow Clock Internal RC oscillator as permanent low-power mode device clock
    • One PLL up to 130MHz for device clock
    • Up to 10 peripheral DMA (PDC) channels
  • Low Power Modes
    • Sleep and Backup modes, down to 3μA in Backup mode
    • Ultra-low-power RTC
  • Peripherals
    • 4-channel 16-bit PWM
    • 32-bit Real-time Timer and RTC with calendar and alarm features
Zveřejněno: 2019-02-15 | Aktualizováno: 2023-05-16