Analog Devices Inc. ADuCM3027 & ADuCM3029 ULP Microcontrollers

Analog Devices Inc. ADuCM3027 and ADuCM3029 Ultra Low Power (ULP) Microcontrollers (MCUs) are 32-bit Arm® Cortex®-M3 Core-based MCUs, easily configured to achieve the right balance of performance and power while still offering critical security and reliability functions. These fast MCUs offer a high ULPBench™ certified score of 245.5 points, as established by the EEMBC (Embedded Microprocessor Benchmark Consortium), an independent industry alliance. The ADuCM3027 and ADuCM3029 differ only in flash memory, offering 128K and 256LK, respectively.

Faster encryption enabled by a combination of hardware and software protection mechanisms provides read-protection to prevent the device contents from being read by unauthorized users. Additionally, in-circuit write-protection prevents the device from being reprogrammed with unauthorized code. Voltage monitoring in standby-mode and error correction for the flash memory increase reliability by avoiding corruptions which could result in misoperation or system crashes.


  • Up to 26MHz Arm Cortex-M3 processor
  • Up to 256kB of embedded flash memory with Error Correction Code (ECC)
  • Optional 4kB cache for lower active power
  • 64kB system SRAM with parity
  • Power Management Unit (PMU)
  • Multilayer Advanced Microcontroller Bus Architecture (AMBA) bus matrix
  • Central Direct Memory Access (DMA) controller
  • Beeper interface
  • Serial port (SPORT), three Serial Peripheral Interfaces (SPIs), Inter-Integrated Circuit (I2C), and Universal Asynchronous Receiver/Transmitter (UART) peripheral interfaces
  • Cryptographic hardware support with Advanced Encryption Standard (AES) and Secure Hash Algorithm (SHA)
  • Two real-time clocks (RTCs)
  • Three general-purpose timers and one watchdog timer
  • Programmable general-purpose input/output (GPIO) pins
  • Hardware Cyclical Redundancy Check (CRC) calculator with programmable generator polynomial
  • Power-on-Reset (POR) and Power Supply Monitor (PSM)
  • 12-bit Successive Approximation Register (SAR) ADC
  • Package options:
    • 64-lead LFCSP
    • 54-ball WLCSP


  • Internet of Things (IoT)
    • Smart machine
    • Smart metering
    • Smart building
    • Smart city
    • Smart agriculture
  • Wearables
    • Health and fitness
    • Clinical
    • Life sciences
    • Medical instrumentation


Additional Resources

I2C Communication Protocol: Understanding I2C Primer, PMBus, and SMBus
This article will provide the basic features and standards for I2C Primer, System Management Bus (SMBus), and Power Management Bus (PMBus).

Learn More

Functional Block Diagram

Block Diagram - Analog Devices Inc. ADuCM3027 & ADuCM3029 ULP Microcontrollers
Publicado: 2018-08-17 | Atualizado: 2023-02-20