ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 97

• 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

36.8.3
8386A–AVR–07/11
2MHz Internal Oscillator
Figure 36-31. 2MHz Internal Oscillator CALA Calibration Step Size
Figure 36-32. 2MHz Internal Oscillator Frequency vs. Temperature
0.32 %
0.29 %
0.26 %
0.23 %
0.20 %
0.17 %
0.14 %
2.18
2.16
2.14
2.12
2.08
2.06
2.04
2.02
1.98
2.1
2
-45
V
0
CC
-35
= 3V
10
-25
20
-15
30
-5
40
5
50
Temperature [°C]
15
60
CALA
25
70
35
80
45
90
55
100 110
XMEGA A3U
65
75
120 130
3.3 V
3.0 V
2.7 V
2.2 V
1.8 V
-40°C
25°C
85°C
97