32-Bit MCUs
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32-Bit MCUs
- SAM 32-bit MCUs
- PIC 32-bit MCUs
- CEC 32-bit MCUs
- Legacy Products
- Development Boards
- Software Tools for PIC, SAM and AVR MCUs
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Applications, Reference Designs and Solutions
- Audio Player/Recorder
- Bluetooth® Low Energy-Based Weather Station
- Die Cutting Machine
- Fitness Tracker/Wearable Solution
- Graphical User Interface
- Human Machine Interface (HMI) for Diagnostic Tool
- Location-Tagged SOS, Asset Tracking or Vehicle Tracking
- Motor Control
- Robotic Vacuum
- SD Card Audio Player
- Smart Home Lock
- TCP/IP Networking
- USB Device/Host Applications with 32-bit Microcontrollers
- USB Mass Storage Device with Multiple Drives
- Wi-Fi® Remote Control for Lighting or Appliances
- 32-bit Embedded Security
- 32-bit Functional Safety
- 32-bit Motor Control
- 32-bit Low Power
- Graphics
- Softpacks
- Other Tools and Resources
- Third Party Partners
- PIC18F to PIC24F to SAMD2x Migration and Performance Enhancement Guide
SAM G MCUs
Redefining Power and Performance in Cortex®-M4 based MCUs
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 3x3 mm, 49-ball WLCSP package. The SAM G family is optimized with a highly-efficient set of serial peripherals including a 12-bit ADC, 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.

Key Features:
- picoPower®
- Down to 100 µA/MHz in active
- Below 7 µA in deep sleep with SRAM retention
- Down to 3 µs wake-up from deep sleep to executing the first instruction in active mode
- Increased throughput
- Cortex-M4
- FPU
- Small package
- 3x3 mm w/ 0.4mm pitch
- WLCSP 7x7 pins
- Pin compatible across the family in WLCSP
SAM G51
SAM G51 series is a member of a family of Flash microcontrollers based on the high-performance 32-bit ARM® Cortex®-M4 RISC processor with Floating Point Unit. It operates at a maximum speed of 48 MHz and features up to 256 Kbytes of Flash and up to 64 Kbytes 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 RTT and one 8-channel 12-bit ADC.
- ARM Cortex-M4 based MCU running up to 48 MHz
- 256 KB embedded Flash and 64 KB SRAM
- Power consumption in active mode ~ 103µA/MHz
- Low-power modes
- Wait mode 6.8 µA
- Wake-up time from wait mode to active mode 3.2 µs
- Floating Point Unit (FPU)
- DSP Instructions
12-bit 8-channel ADC
49-ball WLCSP and 100-lead LQFP package options
SAM G53
SAM G53 is a series of Flash microcontrollers based on the high-performance 32-bit ARM® Cortex® -M4 RISC processor with Floating Point Unit. It operates at a maximum speed of 48 MHz and features up to 512 Kbytes of Flash and 96 Kbytes 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 I2 S controllers with two-way, one-channel pulse density modulation, one realtime timer (RTT) and one 8-channel 12-bit ADC.
- ARM Cortex-M4 based MCU running up to 48 MHz
- 512 KB embedded Flash and 96 KB SRAM
- Power consumption in active mode ~ 102µA/MHz
- Low-power modes
- Wait mode 8 µA
- Wake-up time from wait mode to active mode < 5 µs
- Floating Point Unit (FPU)
- DSP Instructions
- 12-bit 8-channel ADC
- 49-ball WLCSP and 100-lead LQFP package options
SAM G54
SAM G54 is a series of Flash microcontrollers based on the high-performance 32-bit ARM® Cortex®-M4 RISC processor with Floating Point Unit. They operate at a maximum speed of 96 MHz and feature up to 512 Kbytes of Flash and 96 Kbytes 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 I2 S controllers with two-way, one-channel pulse density modulation, one realtime timer (RTT), one real-time clock (RTC) and one 8-channel 12-bit ADC.
- ARM Cortex-M4 based MCU running up to 96 MHz
- 512 KB embedded Flash and 96 KB SRAM
- Power consumption in active mode ~ 102µA/MHz
- Low-power modes
- Wait mode 8 µA
- Wake-up time from wait mode to active mode < 5 µs
- Floating Point Unit (FPU)
- DSP Instructions
- 12-bit 8-channel ADC
- 49-ball WLCSP and 100-lead LQFP package options
SAM G55
SAM G55 is a series of Flash microcontrollers based on the high-performance 32-bit ARM® Cortex®-M4 RISC processor with Floating Point Unit. It operates at a maximum speed of 120 MHz and features 512 Kbytes of Flash and up to 176 Kbytes of SRAM. The peripheral set includes eight flexible communication units comprising USARTs, SPIs and I2C-bus interfaces (TWIs), two three-channel general-purpose 16-bit timers, two I2S controllers, one-channel pulse density modulation interface (PDM,) one 8-channel 12-bit ADC, one real-time timer (RTT) and one real-time clock (RTC), both located in the ultra low-power backup area.
- ARM Cortex-M4 with up to 16 KB SRAM on I/D bus providing 0 wait state execution at up to 120 MHz
- Up to 512 KB embedded Flash and up to 176 KB SRAM
- 8KB ROM with embedded boot loader, single cycle access at full speed
- Power consumption in active mode ~ 102µA/MHz
- Low-power modes
- Wait mode 8 µA
- Wake-up time from wait mode to active mode < 5 µs
- Floating Point Unit (FPU)
- DSP Instructions
- 12-bit 8-channel ADC
- 49-ball WLCSP, 64-lead LQFP, and 64-lead QFN