ATMEGA128-16AU SL383 Atmel, ATMEGA128-16AU SL383 Datasheet - Page 51

• Manufacturer Part Number: ATMEGA128-16AU SL383
• Manufacturer: Atmel

2467S–AVR–07/09
Figure 22. Reset Logic
Table 19. Reset Characteristics
Notes:
Symbol
V
V
V
V
t
t
BOD
RST
HYST
POT
RST
BOT
1. The Power-on Reset will not work unless the supply voltage has been below V
BODLEVEL
RESET
BODEN
Parameter
Power-on Reset
Threshold Voltage
(rising)
Power-on Reset
Threshold Voltage
(falling)
Voltage
Pulse width on RESET
Pin
Brown-out Reset
Threshold Voltage
Minimum low voltage
period for Brown-out
Detection
Brown-out Detector
hysteresis
RESET Pin Threshold
PEN
(1)
Pull-up Resistor
Pull-up Resistor
Power-On Reset
JTAG Reset
Register
FILTER
SPIKE
D
L
Circuit
(2)
Q
Q
CKSEL[3:0]
SUT[1:0]
Watchdog
Watchdog
Oscillator
Generator
BODLEVEL = 1
BODLEVEL = 0
BODLEVEL = 1
BODLEVEL = 0
Timer
Clock
Condition
Reset Circuit
Reset Circuit
Brown-Out
CK
MCU Control and Status
Register (MCUCSR)
DATA BUS
0.2 V
Delay Counters
Min
1.5
2.4
3.7
CC
Typ
100
1.4
1.3
2.6
4.0
2
2
0.85 V
TIMEOUT
Max
2.3
2.3
2.9
4.5
ATmega128
CC
Units
POT
mV
µs
µs
V
V
V
V
(falling)
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