Datasheet

700
11011B–ATARM–21-Feb-12
SAM3N
Figure 35-2. VDDIO Supply Monitor
Figure 35-3. Zero-Power-on Reset Characteristics
Table 35-5. VDDIO Supply Monitor
Symbol Parameter Conditions Min Typ Max Units
V
TH
Supply Monitor Threshold
16 selectable steps of 100mV
1.9 3.4 V
T
ACCURACY
Threshold Level Accuracy -1.5 +1.5 %
V
HYST
Hysteresis 20 30 mV
I
DDON
I
DDOFF
Current Consumption on
VDDCORE
enabled
disabled
18 28
1
µA
T
START
Startup Time From disabled state to enabled state 140 µs
V
th
V
hyst
VDDIO
Reset
V
th +
Table 35-6. Zero-Power-on Reset Characteristics
Symbol Parameter Conditions Min Typ Max Units
V
th+
Threshold voltage rising At Startup 1.46 1.55 1.60 V
V
th-
Threshold voltage falling 1.36 1.45 1.54 V
Tres Reset Time-out Period 40 90 150 µs
V
th-
V
th+
VDDIO
Reset