SAM3SD8B Atmel Corporation, SAM3SD8B Datasheet - Page 1087

• Manufacturer Part Number: SAM3SD8B
• Manufacturer: Atmel Corporation

40.4.7
Table 40-20. Crystal Characteristics
40.4.8
Table 40-21. XIN Clock Electrical Characteristics (In Bypass Mode)
Note:
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
Symbol
ESR
C
C
Symbol
1/(t
t
t
t
t
t
V
V
CPXIN
CHXIN
CLXIN
CLCH
CHCL
XIN_IL
XIN_IH
M
SHUNT
CPXIN
1. These characteristics apply only when the 3-20 MHz XTAL Oscillator is in bypass mode.
)
3 to 20 MHz Crystal Characteristics
3 to 20 MHz XIN Clock Input Characteristics in Bypass Mode
Parameter
Equivalent Series Resistor (Rs)
Motional capacitance
Shunt capacitance
Parameter
XIN Clock Frequency
XIN Clock Period
XIN Clock High Half-period
XIN Clock Low Half-period
Rise Time
Fall Time
V
V
XIN
XIN
Input Low-level Voltage
Input High-level Voltage
V
XIN_IL
V
XIN_IH
t
CPXIN
Conditions
Fundamental @ 3 MHz
Fundamental @ 8 MHz
Fundamental @ 12 MHz
Fundamental @ 16 MHz
Fundamental @ 20 MHz
Conditions
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
t
CPXIN
V
0.7 x
Min
Min
400
400
-0.3
VDDIO
t
20
CLCH
8
8
t
CPXIN
Typ
Typ
t
CHXIN
SAM3S8/SD8
SAM3S8/SD8
V
V
Max
VDDIO
200
100
0.3 x
Max
80
80
50
VDDIO
0.3
8
7
50
t
CHCL
+
Units
MHz
Unit
ns
ns
ns
ns
ns
pF
W
fF
V
V
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