ATTINY261-15MZ Atmel, ATTINY261-15MZ Datasheet - Page 31
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
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Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY261-15MZ
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ATMEL
Quantity:
5 000
Part Number:
ATTINY261-15MZ
Manufacturer:
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Quantity:
20 000
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7753F–AVR–01/11
Figure 7-4.
The Oscillator can operate in three different modes, each optimized for a specific frequency
range. The operating mode is selected by the fuses CKSEL3..1 as shown in
Table 7-10.
Notes:
The CKSEL0 Fuse together with the SUT1..0 Fuses select the start-up times as shown in
7-11.
Table 7-11.
Notes:
CKSEL3..1
CKSEL0
100
0
0
0
0
1
1
1
1
101
110
111
(1)
1. This option should not be used with crystals, only with ceramic resonators.
1. These options should only be used when not operating close to the maximum frequency of the
2. These options are intended for use with ceramic resonators and will ensure frequency stability
device, and only if frequency stability at start-up is not important for the application. These
options are not suitable for crystals.
at start-up. They can also be used with crystals when not operating close to the maximum fre-
quency of the device, and if frequency stability at start-up is not important for the application.
SUT1..0
Crystal Oscillator Connections
Crystal Oscillator Operating Modes
Start-up Times for the Crystal Oscillator Clock Selection
00
01
10
11
00
01
10
11
Frequency Range (MHz)
Start-up Time from
Power-down and
16K (16384) CK
16K (16384) CK
16K (16384) CK
0.4 - 0.9
0.9 - 3.0
3.0 - 8.0
1K (1024) CK
1K (1024)CK
1K (1024)CK
Power-save
8.0 -
258 CK
258 CK
ATtiny261/ATtiny461/ATtiny861
(1)
(1)
C2
C1
(2)
(2)
(2)
Additional Delay from
Recommended Range for Capacitors C1 and C2
14CK + 4.1 ms
14CK + 4.1 ms
14CK + 4.1 ms
14CK + 65 ms
14CK + 65 ms
14CK + 65 ms
(V
CC
XTAL2
XTAL1
GND
Reset
14CK
14CK
= 5.0V)
for Use with Crystals (pF)
12 - 22
12 - 22
12 - 22
Recommended Usage
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Ceramic resonator, BOD
enabled
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Crystal Oscillator, BOD
enabled
Crystal Oscillator, fast rising
power
Crystal Oscillator, slowly
rising power
–
Table
7-10.
Table
31
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