ATXMEGA256A3-MU Atmel, ATXMEGA256A3-MU Datasheet - Page 67

• Manufacturer Part Number: ATXMEGA256A3-MU
• Description: 8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 256KB + 8KB
• Manufacturer: Atmel

Specifications of ATXMEGA256A3-MU

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: AVR
• Data Bus Width: 8 bit/16 bit
• Maximum Clock Frequency: 32 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: QFN EP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 8
• Data Rom Size: 4 KB
• Interface Type: I2C, SPI, USART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 50
• Number Of Timers: 7
• Processor Series: ATXMega
• Program Memory Type: Flash
• Factory Pack Quantity: 260
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.6 V

34.5
Table 34-5.
Note:
Table 34-6.
8068T–AVR–12/10
Vrms
SCALEDVCC
INTVCC
Symbol
Symbol
ADC
AVCC
INT1V
VREF
R
RES
DNL
INL
AREF
clk
ADC Characteristics
1. Refer to
Parameter
Resolution
Integral Non-Linearity
Differential Non-Linearity
Gain Error
Offset Error
ADC Clock frequency
Conversion rate
Conversion time
(propagation delay)
Sampling Time
Conversion range
Analog Supply Voltage
Reference voltage
Input bandwidth
Internal 1.00V reference
Internal V
Scaled internal V
Reference input resistance
Start-up time
Internal input sampling speed
Parameter
Gain error
Offset error
Noise level at input
Clock rate
ADC Characteristics
ADC Gain Stage Characteristics
”Bandgap Characteristics” on page 68
CC
/1.6
CC
/10 input
(1)
Programmable: 8/12
Differential mode, 500ksps
Differential mode, 500ksps
(RES+2)/2+GAIN
RES = 8 or 12, GAIN = 0, 1, 2 or 3
1/2 ADC
Temp. sensor, V
1 to 64 gain
64x gain
Same as ADC
Max is 1/4 of Peripheral Clock
clk
for more parameter details.
Condition
cycle
Condition
CC
/10, Bandgap
VREF = Int. 1V
VREF = Ext. 2V
Min
V
0.25
cc
Min
1.0
-5
8
5
0
-0.3
< ±1
< ±1
0.12
0.06
V
Typ
V
< ±10
< ±1
< ±2
1.00
CC
> 10
Typ
CC
12
12
±2
7
/1.6
/10
XMEGA A3
1000
V
Max
V
VREF
2000
2000
Max
cc
cc
100
12
24
5
8
+0.3
-0.6
Units
kHz
ADC
ADC
cycles
cycles
mV
Units
%
ksps
ksps
LSB
LSB
Bits
kHz
kHz
MΩ
mV
mV
uS
V
V
V
V
V
V
67
clk
clk