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NRF52820-QDAA-R Datasheet(PDF) 67 Page - Nordic Semiconductor

No. de pieza NRF52820-QDAA-R
Descripción Electrónicos  nRF52820
PDF  437 Pages
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Fabricante Electrónico  NORDIC [Nordic Semiconductor]
Página de inicio  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 67 Page - Nordic Semiconductor

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Power and clock management
When read, this register will return the value of the POWER register.
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
D C
B A
Reset 0x0000FFFF
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
ID
Access
Field
Value ID
Value
Description
A-B W S[i]POWER (i=0..1)
Keep RAM section Si of RAMn on or off in System ON mode
On
1
On
C-D W S[i]RETENTION (i=0..1)
Keep retention on RAM section Si when RAM section is
switched off
On
1
On
5.3.7.22 RAM[n].POWERCLR (n=0..3)
Address offset: 0x908 + (n × 0x10)
RAMn power control clear register
When read, this register will return the value of the POWER register.
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
D C
B A
Reset 0x0000FFFF
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
ID
Access
Field
Value ID
Value
Description
A-B W S[i]POWER (i=0..1)
Keep RAM section Si of RAMn on or off in System ON mode
Off
1
Off
C-D W S[i]RETENTION (i=0..1)
Keep retention on RAM section Si when RAM section is
switched off
Off
1
Off
5.3.8 Electrical specification
5.3.8.1 Regulator operating conditions
Symbol
Description
Min.
Typ.
Max.
Units
VDD,POR
VDD supply voltage needed during power-on reset
1.75
V
VDD
Normal voltage mode operating voltage
1.7
3.0
3.6
V
VDDH
High voltage mode operating voltage
2.5
3.7
5.5
V
CVDD
Effective decoupling capacitance on the VDD pin
2.7
4.7
5.5
µF
CDEC4
Effective decoupling capacitance on the DEC4 pin
0.7
1
1.3
µF
5.3.8.2 Regulator specifications, REG0 stage
Symbol
Description
Min.
Typ.
Max.
Units
VREG0OUT
REG0 output voltage
1.8
3.3
V
VREG0OUT,ERR
REG0 output voltage error (deviation from setting in
REGOUT0 on page 36)
-10
5
%
VREG0OUT,ERR,EXT
REG0 output voltage error (deviation from setting in
REGOUT0 on page 36), extended temperature range
-10
7
%
VVDDH-VDD
Required difference between input voltage (VDDH) and
output voltage (VDD, configured in REGOUT0 on page 36),
VDDH > VDD
0.3
V
4463_156 v1.0
67



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