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NRF51822-CFAB-R Scheda tecnica(PDF) 45 Page - Nordic Semiconductor

Il numero della parte NRF51822-CFAB-R
Spiegazioni elettronici  Multiprotocol Bluetooth® low energy/2.4 GHz RF System on Chip
PDF  130 Pages
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Produttore elettronici  NORDIC [Nordic Semiconductor]
Homepage  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF51822-CFAB-R Scheda tecnica(HTML) 45 Page - Nordic Semiconductor

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Page 45
nRF51822 Product Specification v3.3
8.2
Power management
Table 28 Power Fail Comparator
Table 29 Pin Reset
Symbol
Description
Note
Min.
Typ.
Max.
Units
Test
level
VPOF
Nominal power level warning
thresholds (falling supply voltage).
Accuracy as defined by VTOL
2.1
2.3
2.5
2.7
V2
VTOL
Threshold voltage tolerance.
±5
%
3
VHYST
Threshold voltage hysteresis.
VPOF = 2.1 V
VPOF = 2.3 V
VPOF = 2.5 V
VPOF = 2.7 V
46
62
79
100
mV
3
Symbol
Description
Min.
Typ.
Max.
Units
Test
level
tHOLDRESETNORMAL
Hold time for reset pin when doing a pin reset.1
1. SWDCLK pin must be kept low during reset.
0.2
μs
1
tHOLDRESETDEBUG
Hold time for reset pin when doing a pin reset
during debug.1,2
2. Bit 0 in the RESET register in the power management module must be set to 1 to enable reset during debug.
100
μs
1



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