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NRF51822-CFAC-R Fiches technique(PDF) 44 Page - Nordic Semiconductor

No de pièce NRF51822-CFAC-R
Description  Multiprotocol Bluetooth® low energy/2.4 GHz RF System on Chip
PDF  130 Pages
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Fabricant  NORDIC [Nordic Semiconductor]
Site Internet  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF51822-CFAC-R Fiches technique(HTML) 44 Page - Nordic Semiconductor

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Page 44
nRF51822 Product Specification v3.3
8.1.6
32.768 kHz RC oscillator (32k RCOSC)
Table 26 32.768 kHz RC oscillator
8.1.7
32.768 kHz Synthesized oscillator (32k SYNT)
Table 27 32.768 kHz Synthesized oscillator
Symbol
Description
Note
Min.
Typ.
Max.
Units
Test
level
fNOM,RC32k
Nominal frequency.
32.768
kHz
N/A
fTOL,RC32k
Frequency tolerance.
±2
%
3
fTOL,CAL,RC32k
Frequency tolerance.
Calibration interval 4 s
±250
ppm
1
IRC32k
Run current.
1.3
1.5
μA
1
tSTART,RC32k
Startup time.
390
487
μs
1
Symbol
Description
Note
Min.
Typ.
Max.
Units
Test
level
fNOM,SYNT32k
Nominal frequency.
32.768
kHz
1
fTOL,SYNT
Frequency tolerance.
fTOL,XO16M ±8
fTOL,XO32M ±8
ppm
1
ISYNT32k
Run and startup current for
32.768 kHz Synthesized clock
including the 16M XOSC.
15
μA
1
tSTART,SYNT32k
Startup time for 32.768 kHz
Synthesized clock.
406
μs
1



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