ATMEGA164PV-10MCUR Atmel, ATMEGA164PV-10MCUR Datasheet - Page 253
ATMEGA164PV-10MCUR
Manufacturer Part Number
ATMEGA164PV-10MCUR
Description
MCU AVR 16KB FLASH 10MHZ 44-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA164PV-10MCUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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
44-VQFN Exposed Pad
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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20.8
8011O–AVR–07/10
ADC Conversion Result
After the conversion is complete (ADIF is high), the conversion result can be found in the ADC
Result Registers (ADCL, ADCH).
For single ended conversion, the result is
where V
Table 20-3 on page 255
0x3FF represents the selected reference voltage minus one LSB.
If differential channels are used, the result is
where V
GAIN the selected gain factor, and V
in two’s complement form, from 0x200 (-512d) through 0x1FF (+511d). Note that if the user
wants to perform a quick polarity check of the results, it is sufficient to read the MSB of the result
(ADC9 in ADCH). If this bit is one, the result is negative, and if this bit is zero, the result is posi-
tive.
Table 20-2 on page 254
(ADCn - ADCm) is selected with a gain of GAIN and a reference voltage of V
Figure 20-14 on page 254
IN
POS
is the voltage on the selected input pin and V
is the voltage on the positive input pin, V
and
shows the resulting output codes if the differential input channel pair
ADC
Table 20-4 on page
shows the decoding of the differential input range.
=
(
----------------------------------------------------------------------- -
V
ADC
POS
REF
the selected voltage reference. The result is presented
–
=
V
NEG
V
--------------------------
V
IN
REF
V
) GAIN 512
⋅
REF
ATmega164P/324P/644P
⋅
1024
256). 0x000 represents analog ground, and
NEG
REF
⋅
the voltage on the negative input pin,
the selected voltage reference (see
REF
.
253
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