NRF51822-CFAB-R datasheet(8/130 Pages) NORDIC

8 / 130 page

Page 8

nRF51822 Product Specification v3.3

Table of contents

Introduction............................................................................................................................................. 10

1.1

Required reading............................................................................................................................................10

1.2

Writing conventions......................................................................................................................................10

Product overview.................................................................................................................................... 11

2.1

Block diagram .................................................................................................................................................11

2.2

Pin assignments and functions .................................................................................................................12

System blocks.......................................................................................................................................... 20

3.1

CPU ......................................................................................................................................................................20

3.2

Memory..............................................................................................................................................................21

3.3

Memory Protection Unit (MPU) .................................................................................................................23

3.4

Power management (POWER) ...................................................................................................................24

3.5

Programmable Peripheral Interconnect (PPI) ......................................................................................27

3.6

Clock management (CLOCK)......................................................................................................................28

3.7

GPIO.....................................................................................................................................................................31

3.8

Debugger support .........................................................................................................................................31

Peripheral blocks .................................................................................................................................... 32

4.1

2.4 GHz radio (RADIO) ...................................................................................................................................32

4.2

Timer/counters (TIMER)................................................................................................................................33

4.3

Real Time Counter (RTC) ..............................................................................................................................33

4.4

AES Electronic Codebook Mode Encryption (ECB) .............................................................................33

4.5

AES CCM Mode Encryption (CCM)............................................................................................................34

4.6

Accelerated Address Resolver (AAR) .......................................................................................................34

4.7

Random Number Generator (RNG) ..........................................................................................................34

4.8

Watchdog Timer (WDT)................................................................................................................................34

4.9

Temperature sensor (TEMP) .......................................................................................................................35

4.10

Serial Peripheral Interface (SPI/SPIS) .......................................................................................................35

4.11

Two-wire interface (TWI)..............................................................................................................................35

4.12

Universal Asynchronous Receiver/Transmitter (UART) ....................................................................36

4.13

Quadrature Decoder (QDEC)......................................................................................................................36

4.14

Analog to Digital Converter (ADC) ...........................................................................................................36

4.15

GPIO Task Event blocks (GPIOTE)..............................................................................................................36

4.16

Low Power Comparator (LPCOMP) ..........................................................................................................36

Instance table .......................................................................................................................................... 37

Absolute maximum ratings .................................................................................................................. 38

Operating conditions............................................................................................................................. 39

7.1

WLCSP light sensitivity .................................................................................................................................39

7.2

CTAA and CTAC mechanical strength.....................................................................................................39

Electrical specifications ......................................................................................................................... 40

8.1

Clock sources ...................................................................................................................................................40

8.2

Power management......................................................................................................................................45

8.3

Block resource requirements .....................................................................................................................49

8.4

CPU ......................................................................................................................................................................49

8.5

Radio transceiver ............................................................................................................................................50

8.6

Received Signal Strength Indicator (RSSI) specifications.................................................................55

8.7

Universal Asynchronous Receiver/Transmitter (UART) specifications ........................................56

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