ATtiny261A Atmel Corporation, ATtiny261A Datasheet - Page 4
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ATtiny261A
Manufacturer Part Number
ATtiny261A
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny261A
Flash (kbytes)
2 Kbytes
Pin Count
20
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
4
Hardware Qtouch Acquisition
No
Max I/o Pins
16
Ext Interrupts
16
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.12
Eeprom (bytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 105
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATtiny261A-MN
Manufacturer:
Atmel
Quantity:
771
Company:
Part Number:
ATtiny261A-MUR
Manufacturer:
Atmel
Quantity:
7 974
Company:
Part Number:
ATtiny261A-PU
Manufacturer:
Atmel
Quantity:
1 462
Company:
Part Number:
ATtiny261A-SU
Manufacturer:
NEC
Quantity:
1
Company:
Part Number:
ATtiny261A-SUR
Manufacturer:
Atmel
Quantity:
3 598
1.3
1.3.1
Table 1-2.
Notes:
1.4
1.4.1
4
Calibration
Method
Factory
Calibration
User
Calibration
Clock Characteristics
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
System and Reset Characteristics
ATtiny261A
Accuracy of Calibrated Internal Oscillator
Enhanced Power-On Reset
Calibration Accuracy of Internal Oscillator
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
Table 1-3.
Note:
Target Frequency
Symbol
Fixed frequency
SR
7.3 – 8.1 MHz
V
V
POR
POA
8.0 MHz
ON
within:
1. Values are guidelines, only.
2. Threshold where device is released from reset when voltage is rising.
3. The Power-on Reset will not work unless the supply voltage has been below V
Parameter
Release threshold of power-on reset
Activation threshold of power-on reset
Power-On Slope Rate
Characteristics of Enhanced Power-On Reset. T
Fixed voltage within:
1.8V – 5.5V
V
3V
CC
Figure 2-42 on page 28
(2)
Fixed temperature
(3)
-40
Temperature
°
C to +105
within:
25
°
C
°
Min
0.01
C
1.1
0.6
A
(1)
= -40°C to +105°C
and
voltage & temperature
Typ
1.4
1.3
Figure 2-43 on page
Accuracy at given
8197C–Appendix A–AVR–08/11
(1)
±10%
±1%
Max
1.7
1.7
POA
(1)
.
Units
V/ms
V
V
(1)
29.