ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 98

• 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

36.8.4
8386A–AVR–07/11
32MHZ Internal Oscillator
Figure 36-33. 2MHz Internal Oscillator Frequency vs. Temperature
Figure 36-34. Internal 32MHz Oscillator Frequency vs. Temperature
2.008
2.005
2.002
1.999
1.996
1.993
1.987
1.984
1.981
1.978
1.975
36.5
35.5
34.5
33.5
32.5
31.5
1.99
36
35
34
33
32
-45
-45
DFLL enabled, from 32.768kHz internal oscillator
DFLL disabled
-35
-35
-25
-25
-15
-15
-5
-5
5
5
Temperature [°C]
Temperature [°C]
15
15
25
25
35
35
45
45
55
55
XMEGA A3U
65
65
75
75
85
85
3.0 V
2.7 V
3.3 V
2.2 V
1.8 V
3.3 V
3.0 V
2.7 V
1.8 V
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