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NRF51802-QFAA-R Datasheet(PDF) 39 Page - Nordic Semiconductor |
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NRF51802-QFAA-R Datasheet(HTML) 39 Page - Nordic Semiconductor |
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39 / 85 page  Page 39 nRF51802 Product Specification v1.2 8.1.6 32.768 kHz RC oscillator (32k RCOSC) Table 24 32.768 kHz RC oscillator 8.1.7 32.768 kHz Synthesized oscillator (32k SYNT) Table 25 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. 0.5 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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