ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 101

• 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

36.9
8386A–AVR–07/11
Analog comparator characteristics
Figure 36-39. AC propagation delay vs. Vcc
Figure 36-40. AC propagation delay vs. Temperature
120
110
100
120
110
100
90
80
70
60
50
40
90
80
70
60
50
40
1.6
-45
High-speed mode
High-speed mode
-35
1.8
-25
2
-15
2.2
-5
5
2.4
Temperature [°C]
15
V
CC
2.6
[V]
25
2.8
35
45
3
55
3.2
XMEGA A3U
65
3.4
75
3.6
85
-40 °C
85 °C
25 °C
1.6 V
2.7 V
3.6 V
101