ATTINY44-20MUR Atmel, ATTINY44-20MUR Datasheet - Page 147
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ATTINY44-20MUR
Manufacturer Part Number
ATTINY44-20MUR
Description
MCU AVR 4KB FLASH 20MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY24-20MU.pdf
(238 pages)
Specifications of ATTINY44-20MUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY44-20MUR
Manufacturer:
ATMEL
Quantity:
2 100
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16.13.2
8006K–AVR–10/10
ADCSRA – ADC Control and Status Register A
Table 16-5.
1.
For offset calibration purpose the offset of the certain differential channels can be measure by
selecting the same input for both negative and positive input. This calibration can be done for
ADC0, ADC3 and ADC7.
level.
• Bit 7 – ADEN: ADC Enable
Writing this bit to one enables the ADC. By writing it to zero, the ADC is turned off. Turning the
ADC off while a conversion is in progress, will terminate this conversion.
Bit
0x06 (0x26)
Read/Write
Initial Value
Positive Differential Input
ADC2 (PA2)
ADC3 (PA3)
ADC4 (PA4)
ADC5 (PA5)
ADC6 (PA6)
ADC7 (PA7)
For offset calibration, only. See
Differential Input channel Selections. (Continued)
ADEN
R/W
7
0
ADSC
R/W
“Operation” on page 133
6
0
Negative Differential Input
ADC1 (PA1)
ADC3 (PA3)
ADC0 (PA0)
ADC1 (PA1)
ADC2 (PA2)
ADC3 (PA3)
ADC4 (PA4
ADC5 (PA5)
ADC6 (PA6)
ADC7 (PA7)
ADC3 (PA3)
ADC5 (PA5)
ADC3 (PA3)
ADC4 (PA4)
ADC6 (PA6)
ADC3 (PA3)
ADC5 (PA5)
ADC7 (PA7)
ADC3 (PA3)
ADC6 (PA6)
ADC7 (PA7)
ADATE
R/W
5
0
“Operation” on page
(1)
(1)
ADIF
R/W
4
0
describes offset calibration in a more detailed
ADIE
R/W
3
0
133.
ADPS2
R/W
2
0
Gain 1x
101100
010000
101010
101110
110000
100100
010010
010100
010110
011000
110010
011010
110100
111010
011100
110110
111100
011110
111000
111110
100110
ATtiny24/44/84
ADPS1
R/W
1
0
MUX5:0
ADPS0
R/W
0
0
Gain 20x
101101
010001
101011
101111
110001
100101
010011
010101
010111
011001
110011
011011
110101
111011
011101
110111
111101
011111
111001
111111
100111
ADCSRA
147
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