3 ac electrical characteristics, 1 external xtal1 oscillator, Ac electrical characteristics – Rainbow Electronics NUC140 User Manual
Page 61: External xtal1 oscillator, Nuc140 series data sheet
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NUC140 Series DATA SHEET
7.3
AC Electrical Characteristics
t CLCL
tCLCX
t CHCX
tCLCH
tCHCL
Note: Duty cycle is 50%.
PARAMETER SYMBOL
MIN. TYP. MAX. UNITS
CONDITION
Clock High Time
t
CHCX
20 -
- nS
Clock Low Time
t
CLCX
20 -
- nS
Clock Rise Time
t
CLCH
- - 10 nS
Clock Fall Time
t
CHCL
- - 10 nS
7.3.1
External XTAL1 Oscillator
PARAMETER CONDITION
MIN.
TYP.
MAX.
UNIT
Input clock frequency
External crystal
4
12
24
MHz
Temperature -
-40
-
85
℃
V
DD
-
2.5
5
5.5
V
Publication Release Date: May 31, 2010
- 61 -
Revision V1.02
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