BLUENRG-332VC datasheet(63/67 Pages) STMICROELECTRONICS

63 / 67 page

2.17.2

Independent watchdog (IWDG)............................................. 19

2.17.3

SysTick timer .......................................................... 19

2.18

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

2.19

Inter-integrated circuit interface (I2C) ............................................. 20

2.20

Universal synchronous/asynchronous receiver transmitter (USART) ................... 20

2.21

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

2.22

Serial peripheral interface (SPI) ................................................. 21

2.23

Inter-IC sound (I2S) ........................................................... 21

2.24

Serial wire debug port.......................................................... 21

2.25

TX and RX event alert ......................................................... 21

2.26

Direction finding............................................................... 22

Pinouts and pin description.......................................................23

Memory mapping .................................................................28

Application circuits ...............................................................29

Electrical characteristics..........................................................31

6.1

Parameter conditions .......................................................... 31

6.1.1

Minimum and maximum values............................................. 31

6.1.2

Typical values .......................................................... 31

6.1.3

Typical curves .......................................................... 31

6.1.4

Loading capacitor ....................................................... 31

6.1.5

Pin input voltage ........................................................ 32

6.2

Absolute maximum ratings...................................................... 33

6.3

Operating conditions........................................................... 34

6.3.1

Summary of main performance ............................................. 34

6.3.2

General operating conditions .............................................. 36

6.3.3

RF general characteristics................................................. 37

6.3.4

RF transmitter characteristics .............................................. 38

6.3.5

RF receiver characteristics ................................................ 39

6.3.6

Embedded reset and power control block characteristics ......................... 42

6.3.7

Supply current characteristics .............................................. 43

6.3.8

Wake-up time from low power modes ........................................ 44

6.3.9

High speed crystal requirements ............................................ 44

6.3.10

Low speed crystal requirements ............................................ 44

6.3.11

High speed ring oscillator characteristics ..................................... 45

6.3.12

Low speed ring oscillator characteristics ...................................... 45

6.3.13

PLL characteristics ...................................................... 45

6.3.14

Flash memory characteristics .............................................. 45

BlueNRG-LPS

Contents

DS13819 - Rev 4

page 63/67

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