Game Changing, Ultra Low Power 32-bit MCU Ecosystem
Microchip offers a broad range of ultra-low-power and low-power MCUs that balance power consumption and performance to meet the needs of power-constrained applications seeking high levels of functionality. The portfolio ranges from the smallest SAMD ARM® Cortex®-M0+ based MCUs, to the ultra-low-power SAML ARM Cortex-M0+ based MCUs, to higher-performing SAMG ARM Cortex-M4F based MCUs and the PIC32MX XLP family of MCUs, each catering to diverse low-power embedded design needs. These energy-efficient 32-bit MCUs fit in the consumer, industrial, medical and personal care market segments and target applications that include wearables, Internet of Things (IoT), smart locks, thermostats, LPWAN nodes such using LoRa® and Sigfox wireless technologies, industrial sensors, portable EKG monitors and connected cosmetics.
They are designed from the ground up utilizing the low leakage processes and libraries to provide industry leading low power consumption resulting in less than 35 uA/MHz active and 200 nA sleep currents. They offer various innovative power saving features such as multiple power domains, performance levels, SleepWalking peripherals & Event System that can help extend battery life from years to decades.
Highlights:
- Under 35 μA/MHz active & 200 nA sleep current
- Faster wakeup time ~1.2 μS
- Multiple power domains & performance levels
- Innovative SleepWalking peripherals & Event System
- Minuscule package options down to 1.9 mm x 2.4 mm
- Comprehensive low power development platform:
- Easy to use power debugging tools
- Reference designs & evaluation kits
Energy Efficient 32-bit MCU Families:
- Easy to use power debugging tools
- Reference designs & evaluation kits
Family | Power Consumption | Performance | Memory | Key Peripherals | Operating Voltage |
---|---|---|---|---|---|
SAML21 | < 35 uA/MHz Active & 200 nA Sleep Current | 48 MHz | Up to 256 KB Flash & 40 KB SRAM | USB D&H, DAC, OpAmps, PTC, AES | 1.62 - 3.63 V |
SAML22 | < 39 uA/MHz Active & 490 nA backup with RTC | 32 MHz | Up to 256 KB Flash & 32 KB SRAM | Segment LCD, USB D, ISO7816, Tamper Detect, PTC, AES | 1.62 - 3.63 V |
SAMD1/2x | < 70 uA/MHz Active & 3.5 uA Sleep with SRAM retention | 48 MHz | Up to 256 KB Flash & 32 KB SRAM | USB D&H, I2S, DAC, PTC | 1.62 - 3.63 V |
SAM4L | < 90 uA/MHz Active & 1.5 uA Sleep with SRAM retention | 48 MHz | Up to 512 KB Flash & 64 KB SRAM | Segment LCD, USB D&H, I2S, ISO7816, DAC, AES | 1.68 - 3.6 V |
SAMG | < 100 uA/MHz Active & 7uA Sleep with SRAM retention | 120 MHz | Up to 512 KB Flash & 176 KB SRAM | USB D&H, I2S, PDMIC | 1.62 - 3.6 V |
PIC32MX XLP | Sleep currents down to 0.67 uA | 72 MHz | Up to 256 KB Flash & 64 KB SRAM | USB D&H, I2S, PMP | 2.5 - 3.6 V |
For rapid prototype and quick time to market, designers may take advantage of the comprehensive low power development platform: Evaluation kits & reference designs to ease the development of low power applications; MPLAB REAL ICE Power Monitor,
Power Debugger & Data Visualizer to analyze and monitor application’s real-time power profile and XLP Battery Lifeutility to estimate battery life of the most commonly used batteries in the embedded applications.
Microchip’s proven ultra-low power technology and the simplified development tools provide designers a great deal of flexibility to come
up with the most optimized low power solution with ease in no time.
Get started today to develop your cutting edge energy efficient embedded design!
Power Debugger
It is a CMSIS-DAP compatible debugger which works with Studio 7.0 or later, or other frontend software capable of connecting to a generic CMSIS-DAP unit. The Power Debugger streams power measurements and application debug data to Data Visualizer for real-time analysis.

SAM L22 Xplained Pro Evaluation Kit

SAM L21 Xplained Pro Evaluation Kit
The SAM L21 Xplained Pro evaluation kit is ideal for evaluating and prototyping with the ultra low power SAM L21 ARM® Cortex®-M0+ based microcontrollers. Xplained Pro extension kits that are compatible with SAM L21 Xplained Pro can be purchased individually.
The ATSAML21-XPRO-B evaluation kit does not include extension boards.
