ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 72

• Manufacturer Part Number: ATxmega256A3U
• Manufacturer: Atmel Corporation

Specifications of ATxmega256A3U

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 50
• Ext Interrupts: 50
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 10
• Twi (i2c): 2
• Uart: 7
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 16
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.6 to 3.6
• Operating Voltage (vcc): 1.6 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 7
• Output Compare Channels: 22
• Input Capture Channels: 22
• Pwm Channels: 22
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

35.8
Table 35-8.
35.9
Table 35-9.
8386A–AVR–07/11
Symbol
Symbol
INT1V
V
V
V
t
V
delay
I
hys1
hys2
hys3
lk
off
Analog Comparator Characteristics
Bandgap and Internal 1.0V Reference Characteristics
Parameter
Input Offset Voltage
Input Leakage Current
Input voltage range
AC startup time
Hysteresis, None
Hysteresis, Small
Hysteresis, Large
Propagation delay
64-Level Voltage Scaler
Current source accuracy after calibration
Current source calibration range
Parameter
Startup time
Bandgap voltage
Internal 1.00V reference
Variation over voltage and temperature
Analog Comparator Characteristics
Bandgap and Internal 1.0V Reference Characteristics
As reference for ADC or DAC
As input voltage to ADC and AC
T= 85°C, After calibration
Condition
mode = High Speed (HS)
mode = Low Power (LP)
mode = HS
mode = LP
V
mode = HS
V
mode = LP
Integral non-linearity (INL)
CC
CC
= 3.0V, T= 85°C
= 3.0V, T= 85°C
Condition
mode = HS
mode = LP
Min
-0.1
0.99
Min
4
1 Clk
<1000
<±10
PER
Typ
200
200
100
0.5
±1.0
13
30
30
60
90
95
Typ
XMEGA A3U
1.5
1.1
0
5
1
+ 2.5µs
AV
Max
1.01
Max
CC
100
500
1
6
+ 0.1
Units
Units
µs
%
V
LSB
mV
mV
pA
µA
µs
ns
%
V
72