ATtiny261 Atmel Corporation, ATtiny261 Datasheet - Page 192

• 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

19.6
Table 19-7.
Note:
192
Symbol
AV
A
V
V
R
R
REF
IN
INT
REF
AIN
CC
ADC Characteristics
1. Values are guidelines, only.
2. V
ATtiny261/461/861
Parameter
Resolution
Absolute accuracy
(Including INL, DNL, and
Quantization, Gain and Offset
Errors)
Integral Non-Linearity (INL)
(Accuracy after Offset and
Gain Calibration)
Differential Non-linearity (DNL)
Gain Error
Offset Error
Conversion Time
Clock Frequency
Analog Supply Voltage
External Voltage Reference
Input Voltage
Input Bandwidth
Internal 1.1V Reference
Internal 2.56V Reference
Reference Input Resistance
Analog Input Resistance
ADC Conversion Output
DIFF
ADC Characteristics, Single Ended Channels. T = -40°C to +85°C
must be below V
REF
.
(2)
V
ADC clock = 200 kHz
V
ADC clock = 1 MHz
V
ADC clock = 200 kHz
Noise Reduction Mode
V
ADC clock = 1 MHz
Noise Reduction Mode
V
ADC clock = 200 kHz
V
ADC clock = 200 kHz
V
ADC clock = 200 kHz
V
ADC clock = 200 kHz
Free Running Conversion
Single Ended Conversions
Differential Conversions
Single Ended Conversions
Differential Conversions
Single Ended Conversions
Differential Conversions
REF
REF
REF
REF
REF
REF
REF
REF
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Condition
CC
CC
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
V
Min
CC
GND
2.0
2.0
1.0
2.3
13
50
0
0
- 0.3
(1)
Typ
38.5
2.56
100
1.5
2.5
0.5
2.5
1.5
1.1
35
2
3
1
4
(1)
AVCC - 1.0
V
AV
CC
Max
AVCC
1000
1023
V
260
2.8
1.2
10
CC
REF
+ 0.3
(1)
(2)
2588E–AVR–08/10
Units
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
Bits
kHz
kHz
MΩ
kΩ
µs
V
V
V
V
V
V