Analog Devices announced its ADuCM302x series of ultra-low power microcontrollers designed to enable longer battery life and lower operating costs in IoT applications without sacrificing security and reliability functions. Consuming less than 38 uA/MHz of current in active mode and less than 750 nA in standby mode, the ADuCM302x microcontrollers enable longer operation between battery replacements or recharging, providing a better end-user experience and lower maintenance cost. This efficiency can also reduce costs for device makers by decreasing the number and size of batteries required, and enables new applications where battery replacement is impractical.
While alternatives on the market often sacrifice key functionality to achieve efficiency benchmarks, the ADuCM302x series maintains a full suite of reliability and safety functions. Serving as the brain of a connected solution, these microcontrollers represent Analog Devices’ focus on delivering system-level solutions for the Internet of Things, and enabling intelligent decision-making closer to the sensor.
The ADuCM3027 and ADuCM3029 are the initial offerings in the series, differing only in flash memory (128K and 256k respectively). They outperform other general-purpose processors with a high ULPBench certified score of 245.5 points as established by the EEMBC (Embedded Microprocessor Benchmark Consortium), an independent industry alliance. The 32-bit ARM Cortex-M3 processor is easily configured to achieve the right balance of performance and power while still offering critical security and reliability functions. 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.
ADuCM302x Series Key Features
- Ultra-low-power active and hibernate modes
- Active < 38 μA/MHz (typical)
- Flexi < 11.5 μA/MHz (typical)
- Hibernate < 750 nA (typical)
- Shutdown < 60 nA (typical)
- ARM Cortex-M3 processor with MPU
- Up to 26 MHz with serial wire debug interface
- Power management
- Single supply operation
- Wide voltage range (VBAT): 1.8 V to 3.6 V
- LDO+ Buck converter for improved efficiency (optional)
- Power Supply Monitor (PSM)
- Power-on Reset (POR)
- Memory options
- 128/256 Kbytes of embedded flash memory with ECC
- 4 Kbytes of cache memory to reduce active power when executing from flash
- 64 Kbytes of configurable system SRAM
- Security /Safety
- Hardware crypto accelerator supporting AES-128, AES-256 along with various modes (ECB, CBC, CTR, CBC-MAC, CCM, CCM*) and SHA-256
- Watchdog timer
- True Random Number Generator (TRNG)
- Hardware CRC with programmable generator polynomial
- Multi parity-bit-protected SRAM
- User code protection
- Protects customer IP software
- Prevents re-purposing the part
- Secure software upgrade via UART
- Digital Peripherals
- 3 X SPI interface with hardware flow control
- I2C and UART peripheral interfaces
- SPORT for natively interfacing with converters and radios
- Programmable GPIOs
- 3 × general-purpose timers
- 1 × RTC, 1 × FLEX_RTC
- SensorStrobe for synchronization with external sensors to the FLEX_RTC
- Programmable beeper
- 25-channel DMA controller
- Analog Peripherals
- Up to 1.8 MSPS housekeeping ADC
- 12-bit SAR
- Eight channels, single ended
- Digital comparator
- High-precision voltage reference
- Temperature sensor
- Packages:
- 64-pin LFCSP, 54-pin WLCSP
Evaluation Kit
The ADuCM3029 EZ-KIT, Analog Devices, Inc.is an evaluation system for the ADuCM3029 processor. The EZ-KIT ships with all of the necessary components required to start the evaluation immediately.Kit contains an array of three connectors that support the ADF7xxx Wireless Transceiver series of daughterboard products and an expansion interface 3 (EI3) and Arduino interface. These interfaces provide for connecting with daughter boards to expand on the functionality of the EZ-KIT.
The evaluation board is designed to be used in conjunction with the IAR Embedded Workbench® and Segger® development environment for advanced application code development and debug such as:
Product Pricing and Availability
The ADuCM3027 and ADuCM3029 samples available now, Mass production is scheduled in July 2016.
