ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 1115

• 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

43.4.5
Table 43-20. XIN32 Clock Electrical Characteristics (In Bypass Mode)
Note:
6430D–ATARM–25-Mar-11
Symbol
1/(t
t
t
t
t
t
C
R
V
V
CPXIN32
CHXIN32
CLXIN32
CLCH
CHCL
XIN32_IL
XIN32_IH
IN
IN
CPXIN32
1. These characteristics apply only when the 32768 kHz XTAL Oscillator is in bypass mode (i.e., when OSCBYPASS: = 1 in
)
32.768 kHz XIN32 Clock Input Characteristics in Bypass Mode
SUPC_MR and XTALSEL = 1 in the SUPC_CR registers.
Parameter
XIN32 Clock Frequency
XIN32 Clock Period
XIN32 Clock High Half-period
XIN32 Clock Low Half-period
Rise Time
Fall Time
XIN32 Input Capacitance
XIN32 Pull-down Resistor
V
V
XIN32
XIN32
Input Low-level Voltage
Input High-level Voltage
V
XIN_IL
V
XIN_IH
t
CPXIN
Conditions
(1)
(1)
(1)
(1)
t
CPXIN
0.7 x V
t
CLCH
Min
-0.3
400
400
22
11
11
3
VDDBU
t
CPXIN
SAM3U Series
t
CHXIN
0.3 x V
V
VDDBU
Max
44
6
5
VDDBU
+0.3
t
CHCL
Units
kHz
MΩ
pF
μs
μs
μs
ns
ns
V
V
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