ATMEGA16L-8AI Atmel, ATMEGA16L-8AI Datasheet - Page 216
![IC AVR MCU 16K LV 8MHZ IND44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA16L-8AI
Manufacturer Part Number
ATMEGA16L-8AI
Description
IC AVR MCU 16K LV 8MHZ IND44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA16L-8AI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA16L-8AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 216 of 357
- Download datasheet (8Mb)
ADC Conversion
Result
2466T–AVR–07/10
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 83 on page 217
sents 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 82
selected with a gain of GAIN and a reference voltage of V
Figure 111. Differential Measurement Range
Figure 111
- V
IN
POS
shows the resulting output codes if the differential input channel pair (ADCn - ADCm) is
REF
is the voltage on the selected input pin and V
/GAIN
is the voltage on the positive input pin, V
shows the decoding of the differential input range.
and
ADC
Table 84 on page
=
(
----------------------------------------------------------------------- -
V
Output Code
0x3FF
ADC
POS
REF
0x1FF
0x000
the selected voltage reference. The result is presented
–
=
V
0
0x200
NEG
V
--------------------------
V
218). 0x000 represents ground, and 0x3FF repre-
IN
REF
V
) GAIN 512
⋅
REF
⋅
1024
NEG
REF
⋅
REF
the voltage on the negative input pin,
the selected voltage reference (see
.
V
ATmega16(L)
REF
/GAIN Differential Input
Voltage (Volts)
216
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