AT32UC3L0-XPLD Atmel, AT32UC3L0-XPLD Datasheet - Page 50

• Manufacturer Part Number: AT32UC3L0-XPLD
• Description: KIT DEV/EVAL FOR AT32UC3L0
• Manufacturer: Atmel

Specifications of AT32UC3L0-XPLD

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.7
7.7.1
7.7.1.1
Table 7-11.
7.7.1.2
Table 7-12.
Notes:
32099F–11/2010
Symbol
f
t
t
C
Symbol
f
C
C
t
I
CPXIN
CPXIN
STARTUP
OUT
STARTUP
OSC
IN
L
i
Oscillator Characteristics
1. Please refer to the SCIF chapter for details.
2. Nominal crystal cycles.
3. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
Oscillator 0 (OSC0) Characteristics
cess technology. These values are not covered by test limits in production.
Digital Clock Characteristics
Crystal Oscillator Characteristics
Digital Clock Characteristics
Crystal Oscillator Characteristics
Parameter
Crystal oscillator frequency
Crystal load capacitance
Internal equivalent load capacitance
Startup time
Current consumption
Parameter
XIN clock frequency
XIN clock duty cycle
Startup time
XIN input capacitance
The following table describes the characteristics for the oscillator when a digital clock is applied
on XIN.
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
PCB
is the capacitance of the PCB and
Conditions
SCIF.OSCCTRL.GAIN = 2
Active mode, f = 0.45MHz,
SCIF.OSCCTRL.GAIN = 0
Active mode, f = 10MHz,
SCIF.OSCCTRL.GAIN = 2
Conditions
TQFP48 package
QFN48 package
C
C
L
LEXT
is within the range given in the table. The exact value of C
Figure
=
2 C
(
C
7-3. The user must choose a crystal oscillator
L
i
–
is the internal equivalent load capacitance.
C
(1)
Min
i
) C
–
40
PCB
AT32UC3L016/32/64
0.45
Min
6
Typ
7.0
6.7
0
30 000
Typ
170
10
30
2
(2)
Max
50
60
Max
16
18
Units
LEXT
cycles
cycles
MHz
MHz
Unit
pF
µA
pF
%
) can
50
L