ATTINY26L-8MUR Atmel, ATTINY26L-8MUR Datasheet - Page 35
ATTINY26L-8MUR
Manufacturer Part Number
ATTINY26L-8MUR
Description
IC MCU AVR 2K 5V 8MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY26L-8MUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Brown-out
Detection
Watchdog Reset
1477K–AVR–08/10
ATtiny26(L) has an On-chip Brown-out Detection (BOD) circuit for monitoring the V
ing the operation. The BOD circuit can be enabled/disabled by the fuse BODEN. When the BOD
is enabled (BODEN programmed), and V
Reset is immediately activated. When V
Reset is deactivated after a delay. The delay is defined by the user in the same way as the delay
of POR signal, in Table 29. The trigger level for the BOD can be selected by the fuse
BODLEVEL to be 2.7V (BODLEVEL unprogrammed), or 4.0V (BODLEVEL programmed). The
trigger level has a hysteresis of 50 mV to ensure spike free Brown-out Detection.
The BOD circuit will only detect a drop in V
ger than t
Figure 29. Brown-out Reset During Operation
When the Watchdog times out, it will generate a short reset pulse of one CK cycle duration. On
the falling edge of this pulse, the delay timer starts counting the Time-out period t
page 78 for details on operation of the Watchdog.
Figure 30. Watchdog Time-out
INTERNAL
TIME-OUT
RESET
RESET
BOD
V
CC
given in Table 16.
V
BOT-
1 CK Cycle
CC
CC
CC
increases above the trigger level, the Brown-out
decreases below the trigger level, the Brown-out
if the voltage stays below the trigger level for lon-
V
t
TOUT
BOT+
TOUT
CC
. Refer to
level dur-
35
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