SAM3A8C Atmel Corporation, SAM3A8C Datasheet - Page 1408
SAM3A8C
Manufacturer Part Number
SAM3A8C
Description
Manufacturer
Atmel Corporation
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45.4.7
Table 45-19. Crystal Characteristics
45.4.8
Table 45-20. XIN Clock Electrical Characteristics (In Bypass Mode)
Note:
1408
Symbol
ESR
C
C
Symbol
1/(t
t
t
t
t
t
C
R
V
V
CPXIN
CHXIN
CLXIN
CLCH
CHCL
XIN_IL
XIN_IH
M
SHUNT
IN
IN
CPXIN
1. These characteristics apply only when the 3-20 MHz XTAL Oscillator is in bypass mode.
)
SAM3X/A
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
XIN Input Capacitance
XIN Pull-down Resistor
V
V
XIN
XIN
Input Low-level Voltage
Input High-level Voltage
V
XIN_IL
V
XIN_IH
t
CPXIN
Conditions
Fundamental @ 3MHz
Fundamental @ 8MHz
Fundamental @ 12MHz
Fundamental @ 16MHz
Fundamental @ 20MHz
Conditions
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
t
CPXIN
V
0.7 x
Min
VDDPLL
Min
-0.3
400
400
t
20
CLCH
8
8
t
CPXIN
Typ
Typ
t
1
CHXIN
11057A–ATARM–17-Feb-12
V
V
Max
200
100
0.3 x
VDDPLL
VDDPLL
Max
+0.3
80
80
50
8
7
50
6
t
CHCL
Units
MHz
Unit
M
pF
pF
ns
ns
ns
ns
ns
fF
V
V
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