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NRF51822-CFAB-R 数据表(PDF) 44 Page - Nordic Semiconductor

部件名 NRF51822-CFAB-R
功能描述  Multiprotocol Bluetooth® low energy/2.4 GHz RF System on Chip
PDF  130 Pages
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制造商  NORDIC [Nordic Semiconductor]
网页  https://www.nordicsemi.com/
标志 NORDIC - Nordic Semiconductor

NRF51822-CFAB-R 数据表(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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