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NRF52820-QDAA-R Datasheet(PDF) 416 Page - Nordic Semiconductor

Part # NRF52820-QDAA-R
Description  nRF52820
PDF  437 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 416 Page - Nordic Semiconductor

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Hardware and layout
Pin
Name
Function
Description
Recommended usage
Left side of the chip
1
DEC1
Power
1.1 V Digital supply decoupling
2
P0.00
XL1
Digital I/O
Analog input
General purpose I/O
Connection for 32.768 kHz crystal
3
P0.01
XL2
Digital I/O
Analog input
General purpose I/O
Connection for 32.768 kHz crystal
4
P0.04
AIN2
Digital I/O
Analog input
General purpose I/O
Analog input
5
P0.05
AIN3
Digital I/O
Analog input
General purpose I/O
Analog input
6
P0.06
Digital I/O
General purpose I/O
7
P0.07
Digital I/O
General purpose I/O
8
VDD
Power
Power supply
9
VDDH
Power
High voltage power supply
10
VBUS
Power
5 V input for USB 3.3 V regulator
Bottom side of the chip
11
DECUSB
Power
USB 3.3 V regulator supply decoupling
12
D-
USB
USB D-
13
D+
USB
USB D+
14
P0.14
Digital I/O
General purpose I/O
15
P0.15
Digital I/O
General purpose I/O
16
P0.18
nRESET
Digital I/O
General purpose I/O
Configurable as pin RESET
17
P0.20
Digital I/O
General purpose I/O
18
VDD
Power
Power supply
19
SWDIO
Debug
Serial wire debug I/O for debug and programming
20
SWDCLK
Debug
Serial wire debug clock input for debug and
programming
Right side of the chip
21
DEC5
Power
1.3 V regulator supply decoupling
22
P0.16
Digital I/O
General purpose I/O
Standard drive, low frequency I/O
only
23
P0.17
Digital I/O
General purpose I/O
Standard drive, low frequency I/O
only
24
ANT
RF
Single-ended radio antenna connection
See Reference circuitry on page
418 for guidelines on how to
ensure good RF performance
25
VSS_PA
Power
Ground (radio supply)
26
DEC6
Power
1.3 V regulator supply decoupling
Must be connected to DEC4 (pin
38)
27
DEC3
Power
Power supply, decoupling
28
XC1
Analog input
Connection for 32 MHz crystal
29
XC2
Analog input
Connection for 32 MHz crystal
30
VDD
Power
Power supply
Top side of the chip
31
P0.08
Digital I/O
General purpose I/O
Standard drive, low frequency I/O
only
32
P0.29
Digital I/O
General purpose I/O
Standard drive, low frequency I/O
only
33
P0.30
Digital I/O
General purpose I/O
Standard drive, low frequency I/O
only
4463_156 v1.0
416



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