Datasheet

DRAFT
1413
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
45.10 AC Characteristics
45.10.1 Master Clock Characteristics
45.10.2 I/O Characteristics
Criteria used to define the maximum frequency of the I/Os:
 Output duty cycle (40%–60%)
 Minimum output swing: 100 mV to V
DDIO
- 100 mV
 Addition of rising and falling time inferior to 75% of the period
Notes: 1. Pin Group 1 = PA3, PA15
2. Pin Group 2 = PA[0–2], PA[4–14], PA[16–31], PB[0–31], PC[0–31]
Table 45-45. Master Clock Waveform Parameters
Symbol Parameter Conditions Min Max Unit
1/(t
CPMCK
) Master Clock Frequency
VDDCORE @ 1.62V 78
MHz
VDDCORE @ 1.8V 90
Table 45-46. I/O Characteristics
Symbol Parameter Conditions Min Max Unit
FreqMax1 Pin Group 1
(1)
Maximum output frequency
30 pF
V
DDIO
= 1.62V
V
DDIO
= 3.0V
45
65
MHz
45 pF
V
DDIO
= 1.62V
V
DDIO
= 3.0V
34
45
PulseminH
1
Pin Group 1
(1)
High Level Pulse Width
30 pF
V
DDIO
= 1.62V
V
DDIO
= 3.0V
11
7.7
ns
45 pF
V
DDIO
= 1.62V
V
DDIO
= 3.0V
14.7
11
PulseminL
1
Pin Group 1
(1)
Low Level Pulse Width
30 pF
V
DDIO
= 1.62V
V
DDIO
= 3.0V
11
7.7
ns
45 pF
V
DDIO
= 1.62V
V
DDIO
= 3.0V
14.7
11
FreqMax2 Pin Group 2
(2)
Maximum output frequency 25 pF 1.62V < V
DDIO
< 3.6V 35 MHz
PulseminH
2
Pin Group 2
(2)
High Level Pulse Width 25 pF 1.62V < V
DDIO
< 3.6V 14.5 ns
PulseminL
2
Pin Group 2
(2)
Low Level Pulse Width 25 pF 1.62V < V
DDIO
< 3.6V 14.5 ns
Table 45-47. NRSTB Characteristics
Symbol Parameter Conditions Min Typ Max Unit
t
NRSTB(filtered)
Filtered Pulse Width 1
µs
t
NRSTB(unfiltered)
Unfiltered Pulse Width 100