at90ls4433 ATMEL Corporation, at90ls4433 Datasheet - Page 22

• Manufacturer Part Number: at90ls4433
• Description: At90s4433 8-bit Avr Microcontroller With 4k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

22
AT90S/LS4433
Figure 24. Reset Logic
Table 4. Reset Characteristics (V
Note:
Symbol
RESET
V
V
V
V
BODLEVEL
POT
CC
RST
BOT
BODEN
(1)
1. 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
Power-on Reset
Reset Circuit
Reset Circuit
RC Oscillator
Brown-out
Watchdog
On-chip
Circuit
Timer
(BODLEVEL=1)
(BODLEVEL=0)
CC
Min
1.0
0.4
2.2
3.5
= 5.0V)
CK
Register (MCUSR)
MCU Status
DATA BUS
CKSEL[2:0]
(BODLEVEL=1)
(BODLEVEL=0)
Delay Counters
0.6 V
Typ
1.4
0.6
2.7
4.0
CC
(BODLEVEL=1)
(BODLEVEL=0)
Full
Max
1.8
0.8
3.0
4.5
1042H–AVR–04/03
Units
V
V
V
V
POT