2 external 32khz xtal oscillator, 3 internal 22.1184mhz oscillator, 4 internal 10khz oscillator – Rainbow Electronics NUC140 User Manual
Page 63: External 32khz xtal oscillator, Internal 22.1184mhz oscillator, Internal 10khz oscillator, Nuc140 series data sheet
NUC140 Series DATA SHEET
Publication Release Date: May 31, 2010
- 63 -
Revision V1.02
7.3.2
External 32kHz XTAL Oscillator
PARAMETER CONDITION
MIN.
TYP.
MAX.
UNIT
Input clock frequency
External crystal
-
32.768
-
kHz
Temperature -
-40
-
85
℃
V
DD
-
2.5 - 5.5
V
Operating current
V
DD
= 5V
-
5
-
uA
7.3.3
Internal 22.1184MHz Oscillator
PARAMETER CONDITION
MIN.
TYP.
MAX.
UNIT
Supply voltage
[1]
-
2.5 - 5.5
V
Center Frequency
-
-
22.1184
MHz
+25
°C; V
DD
=5V
-1 - +1
%
Calibrated Internal Oscillator
Frequency
-40
°C~+85°C;
V
DD
=2.5V~5.5V
-3 - +3
%
Accuracy of Un-calibrated
Internal Oscillator
Frequency
-40
°C~+85°C;
V
DD
=2.5V~5.5V
-25 - +25
%
Operating current
V
DD
=5V
-
500
-
uA
7.3.4
Internal 10kHz Oscillator
PARAMETER CONDITION
MIN.
TYP.
MAX.
UNIT
Supply voltage
[1]
-
2.5 - 5.5
V
Center
Frequency
-
- 10 -
kHz
+25
°C; V
DD
=5V
-30 - +30
%
Calibrated Internal Oscillator
Frequency
-40
°C~+85°C;
V
DD
=2.5V~5.5V
-50 - +50
%
Operating current
V
DD
=5V
-
5
-
uA
Notes:
1. Internal operation voltage comes form LDO.