ATTINY261-15MZ Atmel, ATTINY261-15MZ Datasheet - Page 43
ATTINY261-15MZ
Manufacturer Part Number
ATTINY261-15MZ
Description
MCU AVR 2K FLASH 15MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-15MZ
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
16
Eeprom Size
128 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
128 x 8
Program Memory Size
2KB (2K x 8)
Data Converters
A/D 11x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY261-15MZ
Manufacturer:
ATMEL
Quantity:
5 000
Part Number:
ATTINY261-15MZ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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9.0.5
9.0.6
7753F–AVR–01/11
Brown-out Detection
Watchdog Reset
ATtiny261/461/861 has an On-chip Brown-out Detection (BOD) circuit for monitoring the V
level during operation by comparing it to a fixed trigger level. The trigger level for the BOD can
be selected by the BODLEVEL Fuses. The trigger level has a hysteresis to ensure spike free
Brown-out Detection. The hysteresis on the detection level should be interpreted as V
V
When the BOD is enabled, and V
9-5), the Brown-out Reset is immediately activated. When V
(V
expired.
The BOD circuit will only detect a drop in V
ger than t
Figure 9-5.
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 44
Figure 9-6.
BOT
BOT+
+ V
in
HYST
for details on operation of the Watchdog Timer.
BOD
Figure
CC
/2 and V
given in
Brown-out Reset During Operation
Watchdog Reset During Operation
INTERNAL
TIME-OUT
9-5), the delay counter starts the MCU after the Time-out period t
RESET
RESET
V
CC
BOT-
“System and Reset Characteristics” on page
= V
BOT
- V
CC
ATtiny261/ATtiny461/ATtiny861
HYST
decreases to a value below the trigger level (V
V
CK
BOT-
/2.
CC
if the voltage stays below the trigger level for lon-
CC
V
t
TOUT
BOT+
increases above the trigger level
190.
TOUT
BOT-
. Refer to
TOUT
in
BOT+
Figure
has
43
CC
=
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