ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 38

• Manufacturer Part Number: ATMEGA169
• Description: 8-bit Microcontroller with 16K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

38
ATmega169/V
Figure 14. Reset Logic
Table 16. Reset Characteristics
Notes:
Symbol
BODLEVEL [2..0]
V
V
t
RST
POT
RST
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)
Minimum pulse width on
RESET Pin
RESET Pin Threshold Voltage
Pull-up Resistor
JTAG Reset
Register
FILTER
SPIKE
(1)
CKSEL[3:0]
Power-on Reset
Reset Circuit
SUT[1:0]
Brown-out
Watchdog
Oscillator
Generator
Circuit
Clock
CK
Condition
T
T
V
V
A
A
to 85°C
to 85°C
Register (MCUSR)
CC
CC
= -40°C
= -40°C
MCU Status
DATA BUS
= 3V
= 3V
Delay Counters
0.2 V
Min
0.7
0.6
CC
Typ
1.0
0.9
TIMEOUT
0.9 V
2514P–AVR–07/06
Max
1.4
1.3
2.5
CC
Units
POT
µs
V
V
V