ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 1117

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

43.4.7
Table 43-22. Crystal Characteristics
43.4.8
Table 43-23. XIN Clock Electrical Characteristics (In Bypass Mode)
Note:
6430D–ATARM–25-Mar-11
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.
)
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
400
400
-0.3
t
20
CLCH
8
8
t
CPXIN
Typ
Typ
SAM3U Series
t
1
CHXIN
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
MΩ
ns
ns
ns
ns
ns
pF
pF
fF
V
V
Ω
1117