The Microchip's SAM G55 embeds a Cortex-M4 CPU with an FPU (floating point unit). This ensures maximum throughput. This is very important as it allows you to minimize the active power consumption and get to sleep faster in order to reduce the overall power consumption. Additionally, the devices have 30 DMA channels, which give extremely high throughput.
The combination of ultra-low power consumption, fast wake-up time and high throughput is what gives the SAM G 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 lifetime. It is fully-functional all the way down to 1.6V; 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 16 Kbytes SRAM on I/D bus providing 0 wait state execution at up to 120 MHz
Memory Protection Unit (MPU)
DSP Instructions, Floating Point Unit (FPU), Thumb®-2 instruction set
Up to 512 Kbytes embedded Flash
Up to 176 Kbytes embedded SRAM
8 Kbytes ROM with embedded boot loader, single-cycle access at full speed
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
49-lead WLCSP, 64-lead LQFP, 64-lead QFN
Temperature operating range
8 flexible communication units supporting:
USART, SPI, or Two-wire Interface (TWI)
USB 2.0 Device and USB Host OHCI with On-chip Transceiver
2 Inter-IC Sound Controllers (I2S)
2 three-channel 16-bit Timer/Counters (TC) with capture, waveform, compare and PWM modes
1 48-bit Real-Time Timer (RTT) with 16-bit prescaler and 32-bit counter
1 RTC with calendar and alarm features
1 32-bit Cyclic Redundancy Check Calculation Unit (CRCCU)
Up to 48 I/O lines with external interrupt capability (edge or level), 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 48 I/O lines
1 Pulse Density Modulation Interface (PDMIC) (supports up to two microphones)
Advanced Analog Features
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
Image formats, file system & GUI library Middleware
RTOS integration, FreeRTOS a core component
PROTO1 Xplained Pro provides easy prototyping on the Xplained Pro platform. It connects to the extension headers of any Xplained Pro evaluation kit and can be used as a gateway to other Xplained Pro extension boards with its own Xplained Pro extension header.
OLED1 Xplained Pro is an extension kit with a 128x32 OLED display, 3 LEDs and 3 push buttons. It connects to the extension headers of any Xplained Pro evaluation kit.
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.
Ethernet1 Xplained Pro is an extension board in the Xplained Pro evaluation platform. The board enables the user to experiment with Ethernet network connectivity applications.
SLCD1 Xplained Pro is an extension kit with a 96-segment LCD display. It connects to Xplained Pro evaluation kits with segment LCD extension headers. For supported kits, see the related tools tab.
The ATBTLC1000-XPRO-ADPT is an adapter board for the ATBTLC1000-XPRO expansion board. It is required for the UART hardware flow control functionality to operate correctly when the ATBTLC1000-XPRO expansion board is connected to certain Xplained MCU base boards.
The BTLC1000XPRO-ADP adapter board supports the SMART SAM L21 Xplained Pro, SAM D21 Xplained Pro, SAM 4S Xplained Pro and...
I/O1 Xplained Pro provides a light sensor, temperature sensor, and microSD card. It connects to the extension headers of any Xplained Pro Evaluation Kit.