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32-bit Low-Power PIC® and SAM Microcontrollers

Reduce Power Consumption in High-Performance Designs

Finding the right balance of power consumption and performance can be challenging when it comes to selecting a microcontroller (MCU) for power-constrained designs that also require a high level of functionality. Microchip’s broad range of ultra-low-power and low-power 32-bit MCUs offer flexible power-saving techniques along with advanced features and performance levels that can meet your design’s specific requirements. Devices range from the smallest SAM D Arm® Cortex®-M0+ based MCUs, to the ultra-low-power SAM L Arm Cortex-M0+ based MCUs, to higher-performing SAM Arm Cortex-M4F based MCUs and the PIC32MX family of eXtreme Low Power (XLP) MCUs. They are excellent options for reducing power consumption in many applications including the Internet of Things (IoT), consumer, industrial, medical and other battery-powered devices.

Benefits of 32-bit XLP PIC MCUs and SAM MCUs with picoPower® Technology

Low-Power Sleep Modes and Operating Voltage

  • Active mode current down to 25 μA/MHz
  • Deep sleep current down to 100 nA
  • SRAM retention (40 KB) down to ~1 μA
  • 1.2 μs wake-up time from idle state
  • Fully operational down to 1.62V while still maintaining all functionality, including analog functions
  • Highest certified ULPMark™ score for any Arm Cortex-M23 or Arm Cortex- M0+ class device; SAM L11 MCU achieved ULPMark score of 410

Flexible and Advanced Peripherals

  • Event System for CPU-independent, inter-peripheral communication offloads and minimizes CPU active time
  • Sleepwalking with dynamic power gating allows MCU to be put into deep sleep and wake up only upon a pre-qualified event
  • Chip-level tamper resistance and Arm TrustZone® technology to protect low-power applications from security vulnerabilities
  • Low-power SERCOM and timer counters
  • Enhanced Peripheral Touch Controller (PTC) offers 4 μA standby with multi-button wake on touch and is highly responsive with superior water tolerance and excellent noise immunity
 

Technology and Innovation

  • eXtreme Low Power (XLP) and picoPower technologies
  • On-the-fly user-selectable performance levels
  • Automatic voltage regulator switching with multiple operating modes
  • Multiple power domains with automatic power domain gating
  • Automatic low-power SRAM switching with optional disable
  • Low-power battery backup mode

Large Portfolio and Efficient Performance Across Voltage Range

  • 14–128 pins
  • 8 KB–1 MB Flash
  • 25 MHz, 32 MHZ, 48 MHz, 96 MHz and 120 MHz performance levels
  • SAM and PIC32 family derivatives
  • 1.62V–3.6V operating voltage
  • Wide selection of packages
  • 1.93 × 2.43 mm WLCSP
 

32-bit Low Power Product Specifications

ProductPerformanceMemoryActiveSleep
Wake-Up
Time
Back Up/
Deep
Sleep
VIN Features
SAM L10Arm® Cortex®-
M23 Core
32 MHz
16-64 KB Flash
4-16 KB
SRAM
25 μA/MHz
0.5 μA
1.5 μs
100 nA1.62 – 3.6picoPower®
Event System
SleepWalking
SAM L11Arm Cortex-
M23 Core
32 MHz
16-64 KB Flash
8-16 KB
SRAM
25 μA/MHz
0.5 μA
1.5 μs
100 nA1.62 – 3.6Advanced Security
picoPower,
Event System,
SleepWalking
SAM L21/22Arm Cortex-
M0+ Core
48/32 MHz
32–256 KB Flash
4–32 KB SRAM
35 μA/MHz
0.9 μA
1.2 μs
200 nA1.62 – 3.6picoPower,
Event System,
Sleep Walking
SAM D5xArm Cortex-
M4F Core
120 MHz
Up to 1 MB Flash
256 KB SRAM
65 μA/MHz
10 μA
5 μs
3 µA1.71 – 3.6Event System,
Sleep Walking
SAM E5xArm Cortex-
M4F Core
120 MHz
Up to 1 MB Flash
256 KB SRAM
65 μA/MHz
10 μA
5 μs
3 µA1.71 – 3.6Event System,
Sleep Walking
SAM D1/2xArm Cortex-
M0+ Core
48 MHz
8–256 KB Flash
2–32 KB SRAM
70 μA/MHz
3.5 μA
4 μs
No back up
mode
1.62 – 3.6Event System,
Sleep Walking
SAM 4LArm Cortex-
M4 Core
48 MHz
128-512 KB Flash
32/64 KB SRAM
picoPower
90 μA/MHz
1.5 μA
1.5 μs
500 nA1.68 – 3.6Event System,
Sleep Walking
SAM G5xArm Cortex-
M4F Core
48/96/120 MHz
256-512 KB Flash
64-176 KB SRAM
picoPower
100 μA/MHz
7 μA
3 μs
1 µA1.62 – 3.6Event System,
Sleep Walking
PIC32MX XLPMIPS32®
M4K® Core
72 MHz
128–256 KB Flash
32-64 KB RAM
250 μA/MHz
13 μA
673 nA2.5 – 3.6XLP
PIC32MM XLPMIPS32
microAptiv™ Core
25 MHz
64–256 KB ECC Flash
8-32 KB SRAM
280 μA/MHz
5 μA
650 nA2.0 – 3.6XLP