ATMEGA16-16AU SL602 Atmel, ATMEGA16-16AU SL602 Datasheet - Page 38

• Manufacturer Part Number: ATMEGA16-16AU SL602
• Manufacturer: Atmel

2466T–AVR–07/10
Figure 15. Reset Logic
Table 15. 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
2. V
this is the case, the device is tested down to V
antees that a Brown-out Reset will occur before V
operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 1 for ATmega16L and BODLEVEL = 0 for ATmega16. BODLEVEL = 1 is not
applicable for ATmega16.
Parameter
Power-on Reset
Threshold Voltage (rising)
Power-on Reset
Threshold Voltage
(falling)
Voltage
Minimum 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
BOT
BODLEVEL
BODEN
may be below nominal minimum operating voltage for some devices. For devices where
(1)
JTAG Reset
Pull-up Resistor
Register
FILTER
SPIKE
(2)
CKSEL[3:0]
Reset Circuit
Reset Circuit
SUT[1:0]
Reset Circuit
Brown-out
Watchdog
Watchdog
Oscillator
Power-on
Generator
Timer
BODLEVEL = 1
BODLEVEL = 0
BODLEVEL = 1
BODLEVEL = 0
Clock
Condition
CK
MCU Control and Status
Register (MCUCSR)
DATA BUS
Delay Counters
CC
0.1V
= V
Min
2.5
3.6
BOT
CC
CC
during the production test. This guar-
drops to a voltage where correct
Typ
1.4
1.3
2.7
4.0
50
2
2
TIMEOUT
ATmega16(L)
0.9V
Max
2.3
2.3
1.5
3.2
4.5
CC
Units
POT
mV
µs
µs
V
V
(falling).
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