Data Sheet

938
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
36.4 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 25.
Table 36-4. Supply Characteristics
Table 36-5. Supply Rise Rates
36.5 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 36-6. Maximum GCLK Generator Output Frequencies
Symbol Description Conditions Max. Units
f
GCLKGEN0
/ f
GCLK_MAIN
f
GCLKGEN1
f
GCLKGEN2
f
GCLKGEN3
f
GCLKGEN4
f
GCLKGEN5
f
GCLKGEN6
f
GCLKGEN7
f
GCLKGEN8
GCLK Generator Output
Frequency
Undivided
96 MHz
Divided 48 MHz
Table 36-7. Maximum Peripheral Clock Frequencies
Symbol Description Max. Units
f
CPU
CPU clock frequency 48 MHz
f
AHB
AHB clock frequency 48 MHz
f
APBA
APBA clock frequency 48 MHz
f
APBB
APBB clock frequency 48 MHz
f
APBC
APBC clock frequency 48 MHz