atmega323l ATMEL Corporation, atmega323l Datasheet - Page 26

• Manufacturer Part Number: atmega323l
• Description: Atmega323 8-bit Avr Microcontroller With 32k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

26
ATmega323(L)
Figure 24. Reset Logic
Table 5. Reset Characteristics
Notes:
BODLEVEL
Symbol
V
V
V
POT
RST
BOT
BODEN
RESET
V
CC
1. Values are guidelines only. Actual values are TBD.
2. The Power-on Reset will not work unless the supply voltage has been below V
(falling)
Parameter
Power-on Reset
Threshold Voltage (rising)
Power-on Reset
Threshold Voltage
(falling)
RESET Pin Threshold
Voltage
Brown-out Reset
Threshold Voltage
100-500k
JTAG Reset
Register
FILTER
SPIKE
(2)
CKSEL[3:0]
Reset Circuit
Reset Circuit
Reset Circuit
(1)
On-chip RC
Brown-out
Power-on
Generator
Watchdog
Oscillator
Timer
Clock
(BODLEVEL = 1)
(BODLEVEL = 0)
Condition
CK
MCU Control and Status
Register (MCUCSR)
DATA BUS
Delay Counters
0.1V
Min
1.0
0.4
2.4
3.5
CC
Typ
1.4
0.6
2.7
4.0
–
TIMEOUT
0.9V
1457G–AVR–09/03
Max
1.8
0.8
3.2
4.5
CC
Units
POT
V
V
V
V