Computer Hardware User Manual

ELECTRICAL DATA S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
17-12
Table 17-11. Sub Oscillation Stabilization Time
(T
A
= − 25
°
C to + 85
°
C, V
DD
= 2.0 V to 3.6 V)
Oscillator Test Condition Min Typ Max Unit
Crystal –
− −
10 s
External clock
XT
IN
input high and low width (t
XH
, t
XL
)
5
−
15
µs
t XTH t XTL
V DD -0.1 V
0.1 V
XT IN
1/fxt
Figure 17-8. Clock Timing Measurement at XT
IN