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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