ATA6612C View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
ATA6612C
Atmel Corporation
'ATA6612C' PDF : 312 Pages View PDF
Table 5-22. Brown-out Characteristics
Symbol
Parameter
Min
Typ
Max
Units
VHYST
tBOD
Brown-out Detector Hysteresis
Min Pulse Width on Brown-out Reset
50
mV
ns
When the BOD is enabled, and VCC decreases to a value below the trigger level (VBOT- in Figure 5-19), the brown-out reset is
immediately activated. When VCC increases above the trigger level (VBOT+ in Figure 5-19), the delay counter starts the MCU
after the time-out period tTOUT has expired.
The BOD circuit will only detect a drop in VCC if the voltage stays below the trigger level for longer than tBOD given in
Table 5-20 on page 62.
Figure 5-19. Brown-out Reset During Operation
VCC
VBOT-
VBOT+
RESET
TIME-OUT
INTERNAL
RESET
tTOUT
5.8.6
Watchdog System Reset
When the watchdog times out, it will generate a short reset pulse of one CK cycle duration. On the falling edge of this pulse,
the delay timer starts counting the time-out period tTOUT. Refer to Section 5.8.9 “Watchdog Timer” on page 66 for details on
operation of the watchdog timer.
Figure 5-20. Watchdog System Reset During Operation
VCC
RESET
WD
TIME-OUT
RESET
TIME-OUT
INTERNAL
RESET
1 CK Cycle
tTOUT
64 ATA6612C/ATA6613C [DATASHEET]
9111L–AUTO–11/14
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