SAM G family is optimized for ultra-low-power and high-performance applications. Its small form factor is based on an Arm® Cortex®-M4F core and, bundled with a Floating-Point Unit (FPU), these devices offer unrivaled efficiency in a tiny 3 × 3 mm, 49-ball WLCSP package. The SAM G family is optimized with a highly efficient set of serial peripherals including a 12-bit Analog-to-Digital Converter (ADC), Direct Memory Access (DMA) and a good SRAM-to-Flash ratio. SAM G devices are ideal for sensor hub and battery-operated consumer applications.
The SAM G family comes in four series, the SAM G51, SAM G53, SAM G54 and SAM G55. These devices are fully compatible, even down to the WLCSP package.
The SAM G51 series of Flash MCUs is based on the high-performance 32-bit Arm Cortex-M4 RISC processor with FPU. It operates at a maximum speed of 48 MHz and features up to 256 KB of Flash and up to 64 KB of SRAM. The peripheral set includes one USART, two UARTs, two I2C-bus interfaces (TWI), one high-speed TWI, up to two SPIs, one three-channel general-purpose 16-bit timer (TC), one Real-Time Timer (RTT) and one 8-channel 12-bit ADC.
The SAM G53 series of Flash MCUs is based on the high-performance 32-bit Arm Cortex-M4 RISC processor with FPU. It operates at a maximum speed of 48 MHz and features up to 512 KB of Flash and 96 KB of SRAM. The peripheral set includes one USART, two UARTs, three I2C-bus interfaces (TWI), up to two SPIs, two three-channel general-purpose 16-bit timers, two I2S™ controllers with two-way, one-channel pulse density modulation, one RTT and one 8-channel 12-bit ADC.