Datasheet

57
32099IS–01/2012
AT32UC3L016/32/64
7.8.3 Power-on Reset 33 Characteristics
Figure 7-6. POR33 Operating Principles
7.8.4 Brown Out Detector Characteristics
The values in Table 7-25 describe the values of the BODLEVEL in the flash General Purpose
Fuse register.
Table 7-24. POR33 Characteristics
Symbol Parameter Condition Min Typ Max Units
V
POT+
Voltage threshold on V
VDDIN
rising 1.49 1.58
V
V
POT-
Voltage threshold on V
VDDIN
falling 1.3 1.45
t
DET
Detection time
Time with VDDIN < V
POT-
necessary to generate a reset
signal
460 µs
I
POR33
Current consumption After t
RESET
15 µA
t
STARTUP
Startup time 400 µs
Reset
V
VDDIN
V
POT+
V
POT-
Table 7-25. BODLEVEL Values
BODLEVEL Value
Min Typ Max Units
011111 binary (31) 0x1F
1.56
V
100111 binary (39) 0x27
1.65