SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 1406

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

45.4.5
Table 45-17. XIN32 Clock Electrical Characteristics (In Bypass Mode)
Note:
1406
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
SAM3X/A
)
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
-0.3
Min
400
400
22
11
11
3
VDDBU
t
CPXIN
t
CHXIN
0.3 x V
V
VDDBU
Max
11057A–ATARM–17-Feb-12
44
6
5
VDDBU
+0.3
t
CHCL
Units
kHz
M
pF
μs
μs
μs
ns
ns
V
V