ADUCM3027BCBZ-RL Analog Devices 32bit MCU

ADUCM3027BCBZ-RL Overview

The ADuCM3027/ADuCM3029 microcontroller units (MCUs) are ultra low power microcontroller systems with integrated power management for processing, control, and connectivity. The MCU system is based on the ARM® Cortex®-M3 processor, a collection of digital peripherals, embedded SRAM and flash memory, and an analog subsystem which provides clocking, reset, and power management capability in addition to an analog-to-digital converter (ADC) subsystem. For a feature comparison across the ADuCM3027/ADuCM3029 product offerings, see Table 1.

Table 1. Product Flash Memory OptionsDeviceEmbedded Flash Memory SizeADuCM3029256 kBADuCM3027128 kB

System features that are common across the ADuCM3027/ADuCM3029/ADuCM3029-1/ADuCM3029-2 MCUs include the following:

Up to 26 MHz ARM Cortex-M3 processor
Up to 256 kB of embedded flash memory with error correction code (ECC)
Optional 4 kB cache for lower active power
64 kB 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), serial peripheral interface (SPI), 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)-256
Real-time clock (RTC)
General-purpose and watchdog timers
Programmable general-purpose input/output (GPIO) pins
Hardware cyclic redundancy check (CRC) calculator with programmable generator polynomial
Power-on reset (POR) and power supply monitor (PSM)
12-bit successive approximation register (SAR) ADC
True random number generator (TRNG)

To support low dynamic and hibernate power management, the ADuCM3027/ADuCM3029 MCUs provide a collection of power modes and features, such as dynamic and software controlled clock gating and power gating.

The ADuCM3029-1 and ADuCM3029-2 MCU models share the same features and functionality as that of the ADuCM3029 MCU. All specifications pertaining to the ADuCM3027 and ADuCM3029 are also applicable to the ADuCM3029-1 and ADuCM3029-2.

For full details on the ADuCM3027/ADuCM3029 MCUs, refer to the ADuCM302x Ultra Low Power ARM Cortex-M3 MCU with Integrated Power Management Hardware Reference Manual.

Product Highlights

Industry leading ultralow power consumption.

Robust operation, including full voltage monitoring in deep sleep modes, ECC support on flash, and parity error detection on SRAM memory.

Leading edge security. Fast encryption provides read protection to customer algorithms. Write protection prevents device reprogramming by unauthorized code.

Failure detection of 32 kHz LFXTAL via interrupt.

SensorStrobe™ for precise time synchronized sampling of external sensors. Works in hibernate mode, resulting in drastic current reduction in system solutions. Current consumption reduces by 10 times when using, for example, the ADXL363 accelerometer. Software intervention is not required after setup. No pulse drift due to software execution.

Applications

Internet of Things (IoT)
Electronic shelf label (ESL) and signage
Smart infrastructure
Smart lock
Asset tracking
Smart machine, smart metering, smart building, smart city, and smart agriculture
Wearables
Fitness and clinical
Machine learning and neural network

Features

EEMBC ULPMark™-CP score: 245.5
Ultra low power active and hibernate mode
Active mode dynamic current: 30 μA/MHz (typical)
Flexi mode: 300 μA (typical)
Hibernate mode: 750 nA (typical)
Shutdown mode: 60 nA (typical)
ARM Cortex-M3 processor with MPU
Up to 26 MHz with serial wire debug interface
Power management
- Single-supply operation (VBAT): 1.74 V to 3.6 V
- Optional buck converter for improved efficiency
Memory options
- 128 kB/256 kB of embedded flash memory with ECC
- 4 kB of cache memory to reduce active power
- 64 kB of configurable system SRAM with parity up to 32 kB of SRAM retained in hibernate mode
Safety
- Watchdog with dedicated on-chip oscillator
- Hardware CRC with programmable polynomial
- Multiparity bit protected SRAM
- ECC protected embedded flash

Security
- TRNG
- User code protection
- Hardware cryptographic accelerator supporting AES-128, AES-256, and SHA-256
Digital peripherals
- 3 SPI interfaces to enable glueless interface to sensors, radios, and converters
- I2C and UART interfaces
- SPORT for natively interfacing with converters and radios
- Programmable GPIOs (44 in LFCSP and 34 in WLCSP)
- 3 general-purpose timers with PWM support
- RTC and FLEX_RTC with SensorStrobe and time stamping
- Programmable beeper
- 25-channel DMA controller
Clocking features
- 26 MHz clock: on-chip oscillator, external crystal oscillator
- 32 kHz clock: on-chip oscillator, low power crystal oscillator
- Integrated PLL with programmable divider
Analog peripherals
- 12-bit SAR ADC, 1.8 MSPS, 8 channels, and digital comparator