ATMEGA168V-10AU Atmel, ATMEGA168V-10AU Datasheet - Page 255

• Manufacturer Part Number: ATMEGA168V-10AU
• Description: IC AVR MCU 16K 10MHZ 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA168V-10AU

• 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: 23
• 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: 32-TQFP, 32-VQFP
• Processor Series: ATMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: 2-Wire, SPI, USART, Serial
• Maximum Clock Frequency: 10 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 3 bit
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 32TQFP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 10 MHz
• Cpu Family: ATmega
• Device Core Size: 8b
• Frequency (max): 10MHz
• Total Internal Ram Size: 1KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: TQFP
• For Use With: ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

24.7
24.8
24.8.1
2545T–AVR–05/11
ADC conversion result
Register description
ADMUX – ADC multiplexer selection register
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 24-2
sents the selected reference voltage minus one LSB.
• Bit 7:6 – REFS1:0: Reference selection bits
These bits select the voltage reference for the ADC, as shown in
changed during a conversion, the change will not go in effect until this conversion is complete
(ADIF in ADCSRA is set). The internal voltage reference options may not be used if an external
reference voltage is being applied to the AREF pin.
Table 24-2.
• Bit 5 – ADLAR: ADC left adjust result
The ADLAR bit affects the presentation of the ADC conversion result in the ADC Data Register.
Write one to ADLAR to left adjust the result. Otherwise, the result is right adjusted. Changing the
ADLAR bit will affect the ADC Data Register immediately, regardless of any ongoing conver-
sions. For a complete description of this bit, see
page
• Bit 4 – Res: Reserved bit
This bit is an unused bit in the Atmel ATmega48/88/168, and will always read as zero.
Bit
(0x7C)
Read/write
Initial value
REFS1
0
0
1
1
258.
IN
is the voltage on the selected input pin and V
and
REFS0
REFS1
Voltage reference selections for ADC.
R/W
0
1
0
1
7
0
Table 24-3 on page
REFS0
Voltage reference selection
AREF, internal V
AV
Reserved
Internal 1.1V voltage reference with external capacitor at AREF pin
R/W
6
0
CC
with external capacitor at AREF pin
ADLAR
R/W
5
0
256). 0x000 represents analog ground, and 0x3FF repre-
ADC
ref
turned off
R
4
–
0
=
V
--------------------------
MUX3
IN
R/W
V
“ADCL and ADCH – The ADC data register” on
3
0
⋅
REF
1024
MUX2
R/W
REF
2
0
the selected voltage reference (see
ATmega48/88/168
MUX1
R/W
1
0
Table
MUX0
R/W
0
0
24-2. If these bits are
ADMUX
255