BLUENRG-2 datasheet(11/190 Pages) STMICROELECTRONICS

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BlueNRG-2

Description

DocID030675 Rev 2

11/190

Description

The BlueNRG-2 is a very low power Bluetooth low energy (BLE) single-mode system-on-

chip, compliant with Bluetooth specification.

The BlueNRG-2 extends the features of award-winning BlueNRG network processor,

enabling the usage of the embedded Cortex M0 for running the user application code.

The BlueNRG-2 includes 256 kB of programming Flash memory, 24 kB of static RAM

memory with retention (two 12 kB banks) and SPI, UART, I²C standard communication

interface peripherals. It also features multifunction timers, watchdog, RTC and DMA

controller.

An ADC is available for interfacing with analog sensors, and for reading the measurement

of the integrated battery monitor. A digital filter is available for processing a PDM stream.

The BlueNRG-2 offers the same excellent RF performance of the BlueNRG radio, and the

integrated high efficiency DC/DC converter keeps the same ultra-low power characteristics,

but the BlueNRG-2 improves the BlueNRG sleep mode current consumption allowing a

further increase in the battery lifetime of the applications.

Figure 1: BlueNRG-2 architecture

RF AFE

LDOs

Rcosc Xosc

Modulation

Demodulation

Blue

Cortex-M0

DMA

AHB Bus matrix

3x Masters

7x Slaves

Flash Controller

12KB SRAM Switchable

12KB SRAM always On

AHB2APB bridge

PKA

1KB SRAM

RNG

256KB Flash Array

14,15 or 26x GPIOs

SPI

UART

2x I2C

2x MFT

Watchdog

RTC

CRMU

(Clock and Reset

Management Unit)

ADC IF

AUX ADC

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