ATxmega128A4U Atmel Corporation, ATxmega128A4U Datasheet - Page 82

• Manufacturer Part Number: ATxmega128A4U
• Manufacturer: Atmel Corporation

Specifications of ATxmega128A4U

• Flash (kbytes): 128 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 7
• Twi (i2c): 2
• Uart: 5
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 8
• Eeprom (bytes): 2048
• 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: 5
• Output Compare Channels: 16
• Input Capture Channels: 16
• Pwm Channels: 16
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 7-1.
8331A–AVR–07/11
Brown-out
Detector
The clock system, clock sources, and clock distribution.
Int. ULP
32 kHz
Watchdog
Timer
Real Time
Counter
32.768 kHz
Int. OSC
RTCSRC
clk
RTC
Peripherals
32.768 kHz
TOSC
clk
PER4
clk
XOSCSEL
PER2
clk
PER
0.4 – 16 MHz
System Clock Multiplexer
System Clock Prescalers
XTAL
RAM
clk
(SCLKSEL)
SYS
Atmel AVR XMEGA AU
32 MHz
Int. Osc
PLLSRC
PLL
AVR CPU
Int. Osc
2 MHz
Non-Volatile
clk
Memory
Prescaler
CPU
USBSRC
USB
clk
USB
82