Datasheet

132
XMEGA D4 [DATASHEET]
8135P–AVR–01/2014
32.4.10 External Reset Characteristics
Table 32-100.External reset characteristics.
32.4.11 Power-on Reset Characteristics
Table 32-101.Power-on reset characteristics.
Note: 1. V
POT-
values are only valid when BOD is disabled. When BOD is enabled V
POT-
= V
POT+
.
32.4.12 Flash and EEPROM Memory Characteristics
Table 32-102.Endurance and data retention.
Symbol Parameter Condition Min. Typ. Max. Units
t
EXT
Minimum reset pulse width 1000 95 ns
V
RST
Reset threshold voltage (V
IH
)
V
CC
= 2.7 - 3.6V 0.60*V
CC
V
V
CC
= 1.6 - 2.7V 0.60*V
CC
0.50*V
CC
Reset threshold voltage (V
IL
)
V
CC
= 2.7 - 3.6V 0.40*V
CC
V
CC
= 1.6 - 2.7V 0.50*V
CC
R
RST
Reset pin pull-up resistor 25 k
Symbol Parameter Condition Min. Typ. Max. Units
V
POT-
(1)
POR threshold voltage falling V
CC
V
CC
falls faster than 1V/ms 0.4 1.0
VV
CC
falls at 1V/ms or slower 0.8 1.0
V
POT+
POR threshold voltage rising V
CC
1.3 1.59
Symbol Parameter Condition Min. Typ. Max. Units
Flash
Write/erase cycles
25°C 10K
Cycle
85°C 10K
Data retention
25°C 100
Year
55°C 25
EEPROM
Write/erase cycles
25°C 80K
Cycle
85°C 30K
Data retention
25°C 100
Year
55°C 25