Datasheet

565
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
32.4 Supply Characteristics
The following characteristics are applicable to the operating temperature range: T
A
= -40°C to 85°C, unless otherwise
specified and are valid for a junction temperature up to T
J
= 100°C. Refer to “Power Supply and Start-Up Considerations”
on page 16.
Table 32-4. Supply Characteristics
Table 32-5. Supply Rise Rates
32.5 Maximum Clock Frequencies
Symbol Conditions
Voltage
Min. Max. Units
V
DDIO
V
DDIN
V
DDANA
Full Voltage Range 1.62 3.63 V
Symbol Parameter
Rise Rate
UnitsMax.
V
DDIO
V
DDIN
V
DDANA
DC supply peripheral I/Os, internal regulator and analog supply
voltage
0.1 V/µs
Table 32-6. Maximum Clock Frequencies
Symbol Parameter Description Max. Units
f
CPU
CPU clock frequency
I
48 MHz
f
AHB
AHB clock frequency
I
f
APBA
APBA clock frequency
I
f
APBB
APBB clock frequency
I
f
APBC
APBC clock frequency
I
f
GCLK0
GCLK0 clock frequency DFLL48M Reference
f
GCLK1
GCLK1 clock frequency WDT I
f
GCLK2
GCLK2 clock frequency RTC I
f
GCLK3
GCLK3 clock frequency EIC II
f
GCLK4
GCLK4 clock frequency EVSYS_CHANNEL_0 I
f
GCLK5
GCLK5 clock frequency I EVSYS_CHANNEL_1
f
GCLK6
GCLK6 clock frequency EVSYS_CHANNEL_2 I
f
GCLK7
GCLK7 clock frequency I EVSYS_CHANNEL_3
f
GCLK8
GCLK8 clock frequency EVSYS_CHANNEL_4 I
f
GCLK9
GCLK9 clock frequency EVSYS_CHANNEL_5 I