ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 177

• Manufacturer Part Number: ATtiny20
• Manufacturer: Atmel Corporation

Specifications of ATtiny20

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 5
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 12
• Ext Interrupts: 12
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• 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
• Self Program Memory: NO
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 3
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

20.7
Table 20-8.
20.8
8235B–AVR–04/11
Symbol
R
V
AIN
IN
ADC Characteristics
Serial Programming Characteristics
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
Input Voltage
Input Bandwidth
Analog Input Resistance
ADC Conversion Output
ADC Characteristics. T = -40°C to +85°C. V
Figure 20-3. Serial Programming Timing
TPID ATA
TPIC LK
t
CLC H
t
IVCH
t
CLCL
Condition
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
REF
REF
REF
REF
REF
REF
REF
REF
t
CHCL
t
CHIX
= V
= V
= V
= V
= V
= V
= V
= V
CC
CC
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
CC
= 1.8 – 5.5V
Rec eive Mode
GND
Min
13
50
0
38.5
Typ
100
1.5
2.5
0.5
2.5
1.5
2
3
1
Transmit Mode
1000
1023
V
Max
260
10
REF
ATtiny20
Units
t
CLO V
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
kHz
kHz
Bits
MΩ
µs
V
177