Datasheet

31
ATtiny13
2535E–AVR–10/04
Figure 13. Reset Logic
Notes: 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
POT
(falling)
Table 12. Reset Characteristics
(1)
Symbol Parameter Condition Min Typ Max Units
V
POT
Power-on Reset
Threshold Voltage
(rising) T
A
= -40 - 85°C
1.2 V
Power-on Reset
Threshold Voltage
(falling)
(2)
T
A
= -40 - 85°C
1.1 V
V
RST
RESET Pin Threshold
Voltage V
CC
= 1.8V - 5.5V
0.1 V
CC
0.9 V
CC
V
t
RST
Minimum pulse width on
RESET
Pin V
CC
= 1.8V - 5.5V
2.5 µs
MCU Status
Register (MCUSR)
Brown-out
Reset Circuit
BODLEVEL [1..0]
Delay Counters
CKSEL[1:0]
CK
TIMEOUT
WDRF
BORF
EXTRF
PORF
DATA BUS
Clock
Generator
SPIKE
FILTER
Pull-up Resistor
Watchdog
Oscillator
SUT
[
1:0
]
Power-on Reset
Circuit