ATTINY261A-MN Atmel, ATTINY261A-MN Datasheet - Page 186
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ATTINY261A-MN
Manufacturer Part Number
ATTINY261A-MN
Description
IC MCU AVR 2K FLASH 32QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261A-MN
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, 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)
1.8 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATtiny
Core
AVR
Data Bus Width
8 bit
Data Ram Size
128 B, 256 B, 512 B
Interface Type
SPI, USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 105 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY261A-MN
Manufacturer:
Atmel
Quantity:
771
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19.4
19.4.1
Table 19-2.
Notes:
19.4.2
Figure 19-2. External Clock Drive Waveforms
Table 19-3.
186
Calibration
Method
Factory
Calibration
User
Calibration
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
Clock Characteristics
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
ATtiny261A/461A/861A
Accuracy of Calibrated Internal Oscillator
External Clock Drive
Parameter
Clock Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one clock cycle to the next
Calibration Accuracy of Internal Oscillator
External Clock Drive Characteristics
V
IL1
V
It is possible to manually calibrate the internal oscillator to be more accurate than default factory
calibration. Note that the oscillator frequency depends on temperature and voltage. Voltage and
temperature characteristics can be found in
page
Target Frequency
IH1
Fixed frequency
7.3 - 8.1 MHz
219.
8.0 MHz
within:
Fixed voltage within:
1.8V - 5.5V
V
3V
CC
V
Min.
250
100
100
CC
0
= 1.8 - 5.5V
Max.
2.0
2.0
4
2
Figure 20-49 on page 219
Fixed temperature
Temperature
-40°C - 85°C
within:
25°C
V
Min.
100
CC
40
40
0
= 2.7 - 5.5V
Max.
1.6
1.6
10
2
voltage & temperature
V
Min.
CC
Accuracy at given
50
20
20
0
and
= 4.5 - 5.5V
±10%
Figure 20-50 on
±1%
Max.
0.5
0.5
20
8197B–AVR–01/10
2
Units
MHz
ns
ns
ns
μs
μs
%
(1)
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