32-bit microcontroller SAMV71Q21RT series

communicationfor motor controlPWM

Overview
The SAMV71Q21RT is a radiation-tolerant, space-qualified 32-bit microcontroller based on an ARM Cortex-M7 core with double-precision FPU. It delivers up to 300 MHz performance, up to 2 Mbytes of embedded Flash and 384 Kbytes of multi-port SRAM with configurable TCM to support deterministic DSP and real-time control functions. The RT variant provides extended temperature grading and ceramic/hermetic package options for aerospace, defense and space applications.

Key Features

• ARM Cortex-M7 core at up to 300 MHz with single- and double-precision hardware FPU.
• 2048 KB embedded Flash and 384 KB multi-port SRAM; configurable instruction/data TCM options (up to 2×128 KB).
• 16 KB I‑cache and 16 KB D‑cache with ECC; MPU with 16 regions.
• Embedded voltage regulator, POR, BOD and dual watchdogs for robust power management and safety.
• Low-power modes (Sleep, Wait, Backup) with BRAM backup and typical backup current ≈1.1 μA (RTC enabled).

Peripherals and Interfaces

• 10/100 Mbps Ethernet MAC (GMAC) with IEEE-1588 PTP, AVB support and dedicated DMA.
• High-speed USB with integrated PHY (USB HS) and HS USB interface.
• Dual MCAN controllers with CAN‑FD support and SRAM-based mailboxes.
• QSPI (XIP) for up to 256 MB external Flash, two SPI controllers and multiple UART/USART interfaces (LIN, ISO7816, IrDA, RS-485).
• Image Sensor Interface (12-bit ITU-R BT.601/656), MediaLB, SSC (I2S/TDM) and two I2SC controllers.
• HSMCI (SDIO/e.MMC), advanced timers/PWM for motor control and up to 114 GPIO lines with interrupt, debouncing and on-die series resistors.
• Two AFEC controllers (up to 12 channels each), one 2‑channel 12‑bit DAC and one analog comparator controller.

Radiation and Space-Grade Additions

• Single-event latch-up (SEL) threshold: LET > 60 MeV·cm2/mg (measured at +125 °C).
• Total Ionizing Dose (TID) capability up to 30 krad(Si).
• Available in ceramic and hermetic package options with extended qualification flow suitable for aerospace/defense/space use (QML-V / QML-Q equivalent).

Packages

• CQFP144 — 144-lead CQFP, 22 × 22 mm, 0.5 mm pitch.
• LQFP144 — 144-lead LQFP, 20 × 20 mm, 0.5 mm pitch.

Documentation and Design Resources
Datasheet, application notes on radiation mitigation and space safety, oscillator guidance for radiation-tolerant clocks, user guides and qualification/packaging screening documentation are available to support design-in and qualification for aerospace and defense programs.

Technical specifications

• CPU: ARM Cortex‑M7, up to 300 MHz.
• Flash: 2048 KB embedded.
• RAM: 384 KB multi-port SRAM.
• FPU: single- and double-precision hardware FPU.
• TCM: configurable options up to 2 × 128 KB.
• ICache / DCache: 16 KB each with ECC.
• ADC: up to 24 channels, 12-bit.
• DAC: 2-channel 12-bit DAC (1 MSps per channel).
• QSPI: Quad I/O with XIP (supports up to 256 MB external Flash).
• I2C (TWIHS): 3 interfaces.
• CAN: 2 controllers, CAN‑FD capable.
• Ethernet: 10/100Base-TX GMAC with AVB and IEEE‑1588 support.
• Supply voltage: 3.0 V to 3.6 V.
• Temperature range: -55 °C to +125 °C (RT variant).
• Radiation: SEL LET > 60 MeV·cm2/mg @ +125 °C; TID up to 30 krad(Si).
• I/O: up to 114 lines.