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SAM L MCUs

Setting a New Low-Power Benchmark for Arm® Cortex®-M23 and Cortex-M0+ Based Microcontrollers

With the huge growth of the Internet of Things (IoT) and the widespread use of wearables and low-power accessories, designers increasingly need lower-power solutions that also offer robust security and touch interfaces. Microchip’s SAM L family of microcontrollers (MCUs) is built with innovative picoPower® technology to deliver best-in-class low power consumption down to 25 µA/MHz in active mode, under 100 nA in sleep mode and fast wake-up times of 1.2 uS. These MCUs have achieved an EEMBC-certified ULPMark™ score of 410, which is the highest score for an Arm® Cortex®-M23 or Cortex-M0+ class device. In addition to ultra-low-power capabilities, these devices feature an enhanced Peripheral Touch Controller (PTC), robust security, Arm TrustZone® technology, Advanced Encryption Standard (AES) encryption, Full Speed USB host and device, Event System and Sleepwalking, 12-bit analog, built in op amps and much more. Discover how you can use the SAM L series of MCUs to expand battery life from years to decades, add elegant touch capabilities to your product and secure your IoT nodes.

 

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Key Features

  • picoPower Technology — Devices are designed from the ground up to offer the lowest possible power consumption from transistor design and process geometry, sleep modes, flexible clocking options, on-the-fly user-selectable performance levels, event system to SleepWalking peripherals. These devices can operate down to 1.62V while still maintaining all functionality, including analog functions. They have a short wake-up time, with multiple wake-up sources from even the deepest sleep modes. They utilize low leakage processes and libraries to deliver industry-leading low power consumption in active and all sleep modes.
  • QTouch® Technology Peripheral Touch Controller (PTC) — This technology offers built-in hardware support for buttons, sliders, wheels, surfaces, and proximity detection. It supports both mutual and self-capacitive touch without the need for external components. It offers superior water tolerance, excellent sensitivity, faster response times and high noise immunity, as well as self-calibration, making any user tuning unnecessary.
  • Robust Security — Offers tamper resistance, Arm TrustZone technology, secure boot, secure bootloader, AES encryption, key storage, root of trust, hardware identity, True Random Number Generator (TRNG) and secure debug.
  • Peripheral Flexibility — An innovative serial communication module (SERCOM) is fully software-configurable to handle I2C, USART/UART and SPI communications. With multiple SERCOM modules on a device, you can tailor the peripheral mix precisely to your application. The I2C interface can operate at up to 3.4 MHz. PMBus and SMBus are also supported. The SAM L22, SAM L10, and SAM L11 also support the ISO7816 interface.
  • Direct Memory Access (DMA) — The SAM L family features a 16-channel DMA controller supporting both memory and peripheral data transfers.
  • Full Speed USB — The SAM L21 family supports both USB embedded host and USB device modes, while the SAM L22 family supports Full Speed USB device mode. Full Speed USB is supported in device mode using an internal RC oscillator, reducing BOM cost and design complexity.
  • Scalability — Flash memory densities range from 16 KB to 256 KB and up to 40 KB of SRAM and devices come in packages as small as 2.8 × 2.8 mm and ranging from 24- to 100-pin options.

SAM L10

A rich set of peripherals, flexibility and ease of use combined with lowest power consumption in its class, and an enhanced Peripheral Touch Controller (PTC) make the industry’s first Arm Cortex-M23 based microcontrollers ideal for IoT devices, wearables, appliances, low-power industrial applications, metering, battery-powered accessories and general-purpose embedded control. Offering identical peripheral modules, compatible code and a linear address map, the SAM L10 family is designed for simple and intuitive migration between SAM L devices. It is also compatible with the SAM D family of general-purpose MCUs.

  • Arm Cortex-M23 based MCU running up to 32 MHz
  • Up to 64 KB embedded Flash and 16 KB SRAM
  • Ultra-low active and sleep currents of < 25 µA/MHz and < 100 nA
  • Enhanced PTC with Driven Shield Plus and Parallel Acquisition
  • DMA, Sleepwalking and Event System
  • Up to three flexible serial communication modules (SERCOMs)
  • Three timers/counters
  • 12-bit Analog-to-Digital Converter (ADC) with up to 10 channels and 10-bit Digital-to-Analog Converter (DAC)
  • Three op amps, two analog comparators and programmable logic block
  • TQFP, SSOP, QFN and WLCSP package options
  • Temperature options: -40°C to 85°C and -40°C to 125°C

 

 

 

 

SAM L11/SAM L11-KPH

As the industry’s first and lowest-power MCUs to feature robust chip-level security and Arm TrustZone technology, the SAM L11 family is ideal for securing IoT nodes for smart cities, home automation, smart agriculture and asset tracking applications. These MCUs also provide secure key storage and authentication capabilities to enable accessory authentication and IP protection. The SAM L11 family is designed for simple and intuitive migration between SAM L devices, offering identical peripheral modules, compatible code and a linear address map. It is also compatible with the SAM D family of general-purpose MCUs.

The SAM L11-KPH includes a factory-provisioned root of trust (key) and Kinibi-M™ Trusted Execution Environment (TEE) to provide an immutable identity for secure application development.

  • Arm Cortex-M23 based MCU running up to 32 MHz
  • Up to 64 KB embedded Flash and 16 KB SRAM
  • Arm TrustZone technology
  • Secure boot and secure bootloader
  • Crypto accelerators
  • Secure debug
  • Ultra-low active and sleep currents of < 25 µA/MHz and < 100 nA
  • Enhanced Peripheral Touch Controller (PTC) with Driven Shield Plus and Parallel Acquisition
  • DMA, Sleepwalking and Event System
  • Up to three flexible serial communication modules (SERCOMs)
  • Three timers/counters
  • 12-bit ADC, 10-bit DAC and three op amps
  • Two analog comparators and programmable logic block
  • TQFP, SSOP, QFN and WLCSP package options
  • Temperature Options: -40°C to 85°C and -40°C to 125°C

SAM L21

A rich set of peripherals, flexibility and ease-of-use combined with ultra-low power consumption make the SAM L21 Arm Cortex-M0+ based microcontroller series ideal for IoT devices, wireless products and any system that needs large memories and low power consumption. The SAM L21 is designed for simple and intuitive migration between SAM L devices, offering identical peripheral modules, compatible code and a linear address map. It is also compatible with the SAM D family of general-purpose MCUs.

  • Arm Cortex-M0+ based MCU running up to 48 MHz
  • Up to 256 KB embedded Flash and 40 KB SRAM
  • Low power consumption at < 35 µA/MHz
  • DMA, Sleepwalking and Event System
  • Up to six flexible serial communication modules (SERCOMs)
  • Up to eight timers/counters
  • Full Speed USB device and embedded host
  • 12-bit ADC with up to 20 channels and 12-bit two-channel DAC
  • Three op amps, two analog comparators and programmable logic block
  • Peripheral Touch Controller (PTC) for hardware touch support
  • QFP, QFN and WLCSP package options

SAM L22

SAM L22 Arm Cortex-M0+ based microcontrollers offers a rich set of peripherals, flexibility and ease of use, combined with ultra-low power consumption for IoT devices, Human-Machine Interfaces (HMIs), building automation, smart metering, wireless products, and any system that needs a segmented LCD controller, large memories and low power consumption. The SAM L22 family is designed for simple and intuitive migration between SAM L devices, offering identical peripheral modules, compatible code and a linear address map. The SAM L22 is also compatible with the SAM D family of general-purpose MCUs.

  • Arm Cortex-M0+ based MCU running up to 32 MHz
  • Up to 256 KB embedded Flash and 32 KB SRAM
  • Low power consumption at < 39 µA/MHz
  • Segmented LCD (SLCD) controller with up to 320 segments
  • DMA, Sleepwalking and Event System
  • Up to six flexible serial communication modules (SERCOMs)
  • Up to five timers/counters
  • Full Speed USB device
  • 12-bit ADC with up to 20 channels
  • Two analog comparators and programmable logic block
  • Peripheral Touch Controller (PTC) for hardware touch support
  • Tamper detection
  • QFP, QFN and WLCSP package options