IDVCC.LF |
Differential XT1 oscillator crystal current consumption from lowest drive setting, LF mode |
fOSC = 32768 Hz, XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 1,
TA = 25°C |
3 V |
|
0.075 |
|
µA |
fOSC = 32768 Hz, XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 2,
TA = 25°C |
|
0.170 |
|
fOSC = 32768 Hz, XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 3,
TA = 25°C |
|
0.290 |
|
fXT1,LF0 |
XT1 oscillator crystal frequency, LF mode |
XTS = 0, XT1BYPASS = 0 |
|
|
32768 |
|
Hz |
fXT1,LF,SW |
XT1 oscillator logic-level square-wave input frequency, LF mode |
XTS = 0, XT1BYPASS = 1 |
|
10 |
32.768 |
50 |
kHz |
OALF |
Oscillation allowance for LF crystals |
XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 0,
fXT1,LF = 32768 Hz, CL,eff = 6 pF |
|
|
210 |
|
kΩ |
XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 1,
fXT1,LF = 32768 Hz, CL,eff = 12 pF |
|
300 |
|
CL,eff |
Integrated effective load capacitance, LF mode |
XTS = 0, XCAPx = 0 |
|
|
1 |
|
pF |
XTS = 0, XCAPx = 1 |
|
5.5 |
|
XTS = 0, XCAPx = 2 |
|
8.5 |
|
XTS = 0, XCAPx = 3 |
|
12.0 |
|
|
Duty cycle, LF mode |
XTS = 0, Measured at ACLK,
fXT1,LF = 32768 Hz |
|
30% |
|
70% |
|
fFault,LF |
Oscillator fault frequency, LF mode |
XTS = 0 |
|
10 |
|
10000 |
Hz |
tSTART,LF |
Start-up time, LF mode |
fOSC = 32768 Hz, XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 0,
TA = 25°C, CL,eff = 12 pF |
3 V |
|
1000 |
|
ms |
fOSC = 32768 Hz, XTS = 0,
XT1BYPASS = 0, XT1DRIVEx = 3,
TA = 25°C, CL,eff = 12 pF |
|
500 |
|