BLUENRG-LP datasheet(68/72 Pages) STMICROELECTRONICS

68 / 72 page

1.15.2

Analog microphone interface............................................... 18

1.15.3

Temperature sensor ..................................................... 18

1.16

True random number generator (RNG) ........................................... 18

1.17

Timers and watchdog .......................................................... 18

1.17.1

Advanced control timer (TIM1) ............................................. 18

1.17.2

Independent watchdog (IWDG)............................................. 18

1.17.3

SysTick timer .......................................................... 18

1.18

Real-time clock (RTC) ......................................................... 19

1.19

Inter-integrated circuit interface (I2C) ............................................. 19

1.20

Universal synchronous/asynchronous receiver transmitter (USART) ................... 19

1.21

LPUART ..................................................................... 20

1.22

Serial peripheral interface (SPI) ................................................. 20

1.23

Inter-IC sound (I2S) ........................................................... 20

1.24

Serial wire debug port.......................................................... 20

1.25

TX and RX event alert ......................................................... 20

Pinouts and pin description.......................................................22

Memory mapping .................................................................30

Application circuits ...............................................................31

Electrical characteristics..........................................................34

5.1

Parameter conditions .......................................................... 34

5.1.1

Minimum and maximum values............................................. 34

5.1.2

Typical values .......................................................... 34

5.1.3

Typical curves .......................................................... 34

5.1.4

Loading capacitor ....................................................... 34

5.1.5

Pin input voltage ........................................................ 34

5.2

Absolute maximum ratings...................................................... 36

5.3

Operating conditions........................................................... 37

5.3.1

Summary of main performance ............................................. 37

5.3.2

General operating conditions .............................................. 39

5.3.3

RF general characteristics................................................. 39

5.3.4

RF transmitter characteristics .............................................. 40

BlueNRG-LP

Contents

DS13282 - Rev 2

page 68/72

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