attiny13-20ss ATMEL Corporation, attiny13-20ss Datasheet - Page 32
attiny13-20ss
Manufacturer Part Number
attiny13-20ss
Description
8-bit Microcontroller With 1k Bytes In-system Programmable Flash - Atmel Corporation
Manufacturer
ATMEL Corporation
Datasheet
1.ATTINY13-20SS.pdf
(177 pages)
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Power-on Reset
32
ATtiny13
A Power-on Reset (POR) pulse is generated by an On-chip detection circuit. The detec-
tion level is defined in Table 12. The POR is activated whenever V
detection level. The POR circuit can be used to trigger the Start-up Reset, as well as to
detect a failure in supply voltage.
A Power-on Reset (POR) circuit ensures that the device is reset from Power-on. Reach-
ing the Power-on Reset threshold voltage invokes the delay counter, which determines
how long the device is kept in RESET after V
again, without any delay, when V
Figure 14. MCU Start-up, RESET Tied to V
Figure 15. MCU Start-up, RESET Extended Externally
INTERNAL
INTERNAL
TIME-OUT
TIME-OUT
RESET
RESET
RESET
RESET
V
V
CC
CC
V
V
V
POT
POT
RST
t
TOUT
CC
decreases below the detection level.
V
RST
CC
t
TOUT
CC
rise. The RESET signal is activated
CC
2535G–AVR–01/07
is below the
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