ATtiny261 Atmel Corporation, ATtiny261 Datasheet - Page 188

• Manufacturer Part Number: ATtiny261
• Manufacturer: Atmel Corporation

Specifications of ATtiny261

• 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: No
• Temp. Range (deg C): -40 to 85
• 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

Table 19-1.
Notes:
19.3
188
Symbol
I
CC
1. Typical values at +25°C.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. “Max” means the highest value where the pin is guaranteed to be read as low.
4. Although each I/O port can sink more than the test conditions (10 mA at V
5. Although each I/O port can source more than the test conditions (10 mA at V
6. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence,
7. Values are with external clock using methods described in
8. BOD Disabled.
Speed
ATtiny261/461/861
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
has a weak drive strength as compared to regular I/O pins. See
(starting on
is enabled (PRR = 0xFF) and there is no I/O drive.
Parameter
Power Supply Current
Power-down mode
DC Characteristics. T
page
The maximum operating frequency of the device depends on V
Figure
and between 2.7V < V
Figure 19-1. Maximum Frequency vs. V
209).
(8)
10 MHz
(7)
4 MHz
19-2, the maximum frequency vs. V
A
= -40°C to +85°C, V
Condition
Active 1MHz, V
Active 4MHz, V
Active 8MHz, V
Idle 1MHz, V
Idle 4MHz, V
Idle 8MHz, V
WDT enabled, V
WDT disabled, V
1.8V
OL
OH
CC
CC
CC
CC
(for all ports) should not exceed 60 mA. If I
(for all ports) should not exceed 60 mA. If I
< 4.5V.
CC
CC
CC
= 2V
= 3V
= 5V
CC
CC
= 2V
= 3V
= 5V
= 3V
= 3V
CC
= 1.8V to 5.5V (unless otherwise noted).
“Minimizing Power Consumption” on page
CC
Figure
Safe Operating Area
Min
CC
(ATtiny261V/461V/861V)
relationship is linear between 1.8V < V
2.7V
20-23,
CC
CC
= 5V, 5 mA at V
Figure
= 5V, 5 mA at V
Typ
0.15
0.4
0.1
0.4
1.5
2
6
4
(1)
20-24,
OL
OH
CC
exceeds the test conditions, V
. As shown in
exceeds the test condition, V
Figure
CC
CC
= 3V) under steady state
Max
0.6
0.3
10
= 3V) under steady state
20-25, and
3
9
1
3
2
37. Power Reduction
Figure 19-1
5.5V
2588E–AVR–08/10
Figure 20-26
CC
Units
mA
mA
mA
mA
mA
mA
µA
µA
< 2.7V
OH
and
OL