ATxmega128D4-AU ATMEL [ATMEL Corporation], ATxmega128D4-AU Datasheet - Page 73

• Manufacturer Part Number: ATxmega128D4-AU
• Description: 8/16-bit Atmel XMEGA D4 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

32.9
Table 32-14. Brownout detection characteristics.
32.10 External Reset Characteristics
Table 32-15. External reset characteristics.
32.11 Power-on Reset Characteristics
Table 32-16. Power-on reset characteristics.
Note:
8135L–AVR–06/12
Symbol
Symbol
Symbol
V
V
V
V
R
V
POT-
t
t
BOD
HYST
EXT
POT+
RST
BOT
RST
(1)
Brownout Detection Characteristics
1. V
Parameter
Minimum reset pulse width
Reset threshold voltage (V
Reset threshold voltage (V
Reset pin pull-up resistor
Parameter
BOD level 0 falling V
BOD level 1 falling V
BOD level 2 falling V
BOD level 3 falling V
BOD level 4 falling V
BOD level 5 falling V
BOD level 6 falling V
BOD level 7 falling V
Detection time
Hysteresis
Parameter
POR threshold voltage falling V
POR threshold voltage rising V
POT-
values are only valid when BOD is disabled. When BOD is enabled V
CC
CC
CC
CC
CC
CC
CC
CC
IH
IL
)
)
CC
CC
V
V
CC
CC
falls faster than 1V/ms
falls at 1V/ms or slower
V
V
V
V
Continuous mode
Sampled mode
CC
CC
CC
CC
= 2.7 - 3.6V
= 1.6 - 2.7V
= 2.7 - 3.6V
= 1.6 - 2.7V
Condition
Condition
Condition
POT-
= V
Min.
0.4
0.8
POT+
Min.
Min.
1.60
.
Typ.
0.60×V
0.60×V
0.50×V
0.40×V
1.0
1.0
1.3
1000
Typ.
1.62
Typ.
1.8
2.0
2.2
2.4
2.6
2.8
3.0
0.4
1.2
95
25
XMEGA D4
CC
CC
CC
CC
Max.
1.59
Max.
1.72
Max.
1000
Units
Units
Units
kΩ
µs
ns
%
V
V
V
73