ATtiny85 Atmel Corporation, ATtiny85 Datasheet - Page 131

• Manufacturer Part Number: ATtiny85
• Manufacturer: Atmel Corporation

Specifications of ATtiny85

• Flash (kbytes): 8 Kbytes
• Pin Count: 8
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 3
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 6
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• 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: 5
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

2586N–AVR–04/11
Figure 17-6. ADC Timing Diagram, Auto Triggered Conversion
In Free Running mode, a new conversion will be started immediately after the conversion com-
pletes, while ADSC remains high.
Figure 17-7. ADC Timing Diagram, Free Running Conversion
For a summary of conversion times, see
Table 17-1.
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Condition
First conversion
Normal conversions
Auto Triggered conversions
Prescaler
Reset
ADC Conversion Time
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
MUX and REFS
Update
1
Conversion
2
Complete
One Conversion
3
(Cycles from Start of Conversion)
11
Sample &
Hold
4
12
5
Sample & Hold
Table
13
6
13.5
1.5
2
17-1.
7
One Conversion
Next Conversion
1
Sign and MSB of Result
LSB of Result
8
2
MUX and REFS
Update
9
10
Conversion
3
Complete
11
Sample & Hold
ATtiny25/45/85
4
Total Conversion Time
12
13
(Cycles)
13.5
25
13
Sign and MSB of Result
LSB of Result
Next Conversion
1
Prescaler
Reset
2
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