NRF51422-QFAC-R7 datasheet(7/115 Pages) NORDIC

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Page 7

nRF51422 Product Specification v3.1

Table of contents

Introduction............................................................................................................................................... 9

1.1

Required reading.............................................................................................................................................. 9

1.2

Writing conventions........................................................................................................................................ 9

Product overview.................................................................................................................................... 10

2.1

Block diagram .................................................................................................................................................10

2.2

Pin assignments and functions .................................................................................................................11

System blocks.......................................................................................................................................... 19

3.1

CPU ......................................................................................................................................................................19

3.2

Memory..............................................................................................................................................................20

3.3

Memory Protection Unit (MPU) .................................................................................................................22

3.4

Power management (POWER) ...................................................................................................................23

3.5

Programmable Peripheral Interconnect (PPI) ......................................................................................26

3.6

Clock management (CLOCK)......................................................................................................................27

3.7

GPIO.....................................................................................................................................................................30

3.8

Debugger support .........................................................................................................................................30

Peripheral blocks .................................................................................................................................... 31

4.1

2.4 GHz radio (RADIO) ...................................................................................................................................31

4.2

Timer/counters (TIMER)................................................................................................................................32

4.3

Real Time Counter (RTC) ..............................................................................................................................32

4.4

AES Electronic Codebook Mode Encryption (ECB) .............................................................................32

4.5

AES CCM Mode Encryption (CCM)............................................................................................................33

4.6

Accelerated Address Resolver (AAR) .......................................................................................................33

4.7

Random Number Generator (RNG) ..........................................................................................................33

4.8

Watchdog Timer (WDT)................................................................................................................................33

4.9

Temperature sensor (TEMP) .......................................................................................................................34

4.10

Serial Peripheral Interface (SPI/SPIS) .......................................................................................................34

4.11

Two-wire interface (TWI)..............................................................................................................................34

4.12

Universal Asynchronous Receiver/Transmitter (UART) ....................................................................35

4.13

Quadrature Decoder (QDEC)......................................................................................................................35

4.14

Analog to Digital Converter (ADC) ...........................................................................................................35

4.15

GPIO Task Event blocks (GPIOTE)..............................................................................................................35

4.16

Low Power Comparator (LPCOMP) ..........................................................................................................35

Instance table .......................................................................................................................................... 36

Absolute maximum ratings .................................................................................................................. 37

Operating conditions............................................................................................................................. 38

7.1

WLCSP light sensitivity .................................................................................................................................38

Electrical specifications ......................................................................................................................... 39

8.1

Clock sources ...................................................................................................................................................39

8.2

Power management......................................................................................................................................44

8.3

Block resource requirements .....................................................................................................................48

8.4

CPU ......................................................................................................................................................................48

8.5

Radio transceiver ............................................................................................................................................49

8.6

Received Signal Strength Indicator (RSSI) specifications.................................................................54

8.7

Universal Asynchronous Receiver/Transmitter (UART) specifications ........................................55

8.8

Serial Peripheral Interface Slave (SPIS) specifications .......................................................................56

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