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Data Sheet

ADuCM3027/ADuCM3029

Rev. B | Page 3 of 39

GENERAL DESCRIPTION

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 Options

Device

Embedded Flash Memory Size

ADuCM3029

256 kB

ADuCM3027

128 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

1. Industry leading ultralow power consumption.

2. Robust operation, including full voltage monitoring in

deep sleep modes, ECC support on flash, and parity error

detection on SRAM memory.

3. Leading edge security. Fast encryption provides read

protection to customer algorithms. Write protection

prevents device reprogramming by unauthorized code.

4. Failure detection of 32 kHz LFXTAL via interrupt.

5. 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.

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