ATMEGA644PV ATMEL [ATMEL Corporation], ATMEGA644PV Datasheet - Page 252
ATMEGA644PV
Manufacturer Part Number
ATMEGA644PV
Description
8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA644PV.pdf
(408 pages)
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Quantity
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Part Number:
ATMEGA644PV-10MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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ATmega164P/324P/644P
Figure 21-14. Differential Measurement Range
Table 21-2.
V
V
V
...
V
V
V
...
V
V
V
ADCn
ADCm
ADCm
ADCm
ADCm
ADCm
ADCm
ADCm
ADCm
+ 0.999 V
+ 0.998 V
+ 0.001 V
- 0.001 V
- 0.999 V
- V
- V
+ V
REF
REF
REF
/GAIN
/GAIN
/GAIN
Correlation between Input Voltage and Output Codes
REF
REF
REF
REF
REF
/GAIN
/GAIN
/GAIN
/GAIN
/GAIN
Read code
0x1FF
0x1FF
0x1FE
...
0x001
0x000
0x3FF
...
0x201
0x200
Output Code
0x3FF
0x1FF
0x000
0
0x200
Corresponding Decimal Value
511
511
510
...
1
0
-1
...
-511
-512
V
REF
/GAIN Differential Input
Voltage (Volts)
8011D–AVR–02/07
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