Status: In Production
The Microchip's SAM G51 has an ARM® Cortex®-M4 core with an FPU (floating point unit) to maximize data throughput. This allows you to minimize the active-mode power consumption and get the core into sleep mode faster, which will reduce the overall power consumption. The device has 16 DMA channels, which contribute to the extremely high throughput.
The combination of ultra-low power consumption, fast wake-up time, and high throughput is what gives the SAM G51 the edge in space- and power-constrained consumer applications such as sensor hubs. It wakes up quickly, has the throughput needed to reduce the amount of time spent in active mode, and then goes back to sleep with SRAM retention to conserve energy.
This gives the best performance and longest battery life. It is fully-functional all the way down to 1.62V, including flash reads and writes, as well as full ADC operation. This allows for a more flexible power supply scheme that will squeeze extra runtime out of a battery.
ARM Cortex-M4 with up to 64 Kbytes SRAM on I/D bus providing 0 wait state execution at up to 48 MHz
Memory Protection Unit (MPU)
DSP Instructions, Floating Point Unit (FPU), Thumb®-2 instruction set
256 Kbytes embedded Flash
64 Kbytes embedded SRAM
Embedded voltage regulator for single-supply operation
Power-on reset (POR) and Watchdog for safe operation
Quartz or ceramic resonator oscillators: 3 to 20 MHz with clock failure detection and 32.768 kHz for RTT or system clock
High-precision 8/16/24 MHz factory-trimmed internal RC oscillator. In-application trimming access for frequency adjustment
Slow clock internal RC oscillator as permanent low-power mode device clock
PLL range from 48 MHz to 120 MHz for device clock
PLL range from 24 MHz to 48 MHz for USB device and USB OHCI
Up to 30 peripheral DMA (PDC) channels
256-bit General-Purpose Backup Registers (GPBR)
16 external interrupt lines
Power Consumption/Low Power modes
103 μA/MHz running Fibonacci in SRAM(Active mode)
Wait mode down to 6.8 μA
Wake-up time less than 3.2 μs
49-lead WLCSP, 100-pin LQFP, 14 x 14 mm, pitch 0.5 mm
Temperature operating range
One USART with SPI mode
Three Two-Wire Interface (TWI) modules featuring two TWI masters and one high-speed TWI slave
One fast SPI at up to 24Mbit/s
Two three-channel 16-bit Timer/Counters (TC) with Capture, Waveform, Compare and PWM modes
One 32-bit Real-Time Timer (RTT)
One 32-bit Real-Time Clock (RTC)
Up to 38 controllable I/O lines with external interrupt capability (edge or level sensitivity), debouncing, glitch filtering and on-die series resistor termination. Individually programmable open-drain, pull-up and pull-down resistor and synchronous output
Two PIO Controllers provide control of up to 25 I/O lines
Debugger Development Support
Serial Wire/JTAG Debug Port(SWJ-DP)
Debug access to all memories and registers in the system, including Cortex-M4 register bank when the core is running, halted, or held in reset.
Serial Wire Debug Port (SW-DP) and Serial Wire JTAG Debug Port (SWJ-DP) debug access.
Flash Patch and Breakpoint (FPB) unit for implementing breakpoints and code patches.
Data Watchpoint and Trace (DWT) unit for implementing watchpoints, data tracing, and system profiling.
Instrumentation Trace Macrocell (ITM) for support of printf style debugging.
IEEE1149.1 JTAG Boundary-scan on all digital pins.
Integrated Software Libraries and Tools
ASF-Atmel software Framework – SAM software development framework
Integrated in the Atmel Studio IDE with a graphical user interface or available as standalone for GCC, IAR compilers.
DMA support, Interrupt handlers Driver support
USB, TCP/IP, Wi-Fi and Bluetooth, Numerous USB classes, DHCP and Wi-Fi encryption Stacks
RTOS integration, FreeRTOS is a core component
MPLAB® X Integrated Development Environment (IDE) is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for most of Microchip’s microcontrollers, microprocessors and digital signal controllers.
MPLAB X IDE works seamlessly with the MPLAB development ecosystem of
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Most of these tools are based on efforts from GNU (www.gnu.org), and some are developed by Microchip. For more information please refer to the release notes.
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The RS485 Xplained Pro extension evaluation kit is ideal for evaluation and prototyping applications involving RS485 / 422 features of the SAM C21 Cortex®?-M0+ processor-based microcontrollers. SAM C21 Xplained Pro board can be purchased individually. The ATRS485-XPRO extension evaluation kit does not include Xplained Pro boards. For compatible Xplained Pro board please see the Related...
The SAM G55 Xplained Pro evaluation kit is ideal for evaluation and prototyping with the SAM G55 Cortex®-M4 processor-based microcontrollers. Extension boards to the SAM G55 Xplained Pro can be purchased individually.
The ATSAMG55-XPRO evaluation kit does not include extension boards.
For compatible Xplained Pro extension board please see the Related Tools tab.
For pricing and availability, contact Microchip Local Sales.