ATTINY20-MMH Atmel, ATTINY20-MMH Datasheet - Page 117
![MCU AVR 2KB FLASH 12MHZ 20QFN](/photos/30/99/309958/qfn-16_sml.jpg)
ATTINY20-MMH
Manufacturer Part Number
ATTINY20-MMH
Description
MCU AVR 2KB FLASH 12MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY20-EK1.pdf
(224 pages)
Specifications of ATTINY20-MMH
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Processor Series
ATtiny
Core
AVR
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
SPI, TWI
Maximum Clock Frequency
12 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY20-MMHR
Manufacturer:
ATMEL
Quantity:
20 000
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8235B–AVR–04/11
this mode, the sample-and-hold takes place two ADC clock cycles after the rising edge on the
trigger source signal. Three additional CPU clock cycles are used for synchronization logic.
Figure 15-6. 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. See
Figure 15-7. ADC Timing Diagram, Free Running Conversion
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Prescaler
Reset
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
MUX and REFS
Update
1
Conversion
Complete
2
One Conversion
12
3
Sample &
Hold
4
13
Figure
5
14
6
15-7.
7
One Conversion
Next Conversion
1
Sign and MSB of Result
LSB of Result
8
9
2
MUX and REFS
Update
10
Conversion
Complete
3
11
12
Sample & Hold
4
13
ATtiny20
Sign and MSB of Result
LSB of Result
Next Conversion
1
Prescaler
Reset
2
117
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