AT32UC3C1512C-AZR Atmel, AT32UC3C1512C-AZR Datasheet - Page 56
AT32UC3C1512C-AZR
Manufacturer Part Number
AT32UC3C1512C-AZR
Description
Microcontrollers (MCU) 512KB FL,-40/125oC AUTO
Manufacturer
Atmel
Datasheet
1.AT32UC3C1512C-AZR.pdf
(106 pages)
Specifications of AT32UC3C1512C-AZR
Lead Free Status / Rohs Status
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Part Number:
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7.6
7.6.1
7.6.1.1
Table 7-7.
7.6.1.2
9166BS–AVR-02/11
Symbol
f
t
t
t
C
CPXIN
CPXIN
CHXIN
CLXIN
IN
Oscillator Characteristics
Oscillator (OSC0 and OSC1) Characteristics
Digital Clock Characteristics
Crystal Oscillator Characteristics
Digital Clock Characteristics
Parameter
XIN clock frequency
XIN clock period
XIN clock high half-priod
XIN clock low half-priod
XIN input capacitance
The following table describes the characteristics for the oscillator when a digital clock is applied
on XIN0 or XIN1.
The following table describes the characteristics for the oscillator when a crystal is connected
between XIN and XOUT as shown in
where the crystal load capacitance
can be found in the crystal datasheet. The capacitance of the external capacitors (C
then be computed as follows:
where C
Figure 7-2.
PCB
is the capacitance of the PCB and
Oscillator Connection
UC3C
C
i
XOUT
XIN
Conditions
C
C
L
LEXT
is within the range given in the table. The exact value of C
Figure
C
=
L
2 C
(
C
7-2. The user must choose a crystal oscillator
L
i
0.4 x t
0.4 x t
–
is the internal equivalent load capacitance.
C
Min
i
20
) C
–
CPXIN
CPXIN
C
C
PCB
LEXT
LEXT
Typ
2
0.6 x t
0.6 x t
Max
AT32UC3C
50
CPXIN
CPXIN
Units
LEXT
MHz
pF
ns
ns
ns
) can
56
L
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