ATxmega64A3 Atmel Corporation, ATxmega64A3 Datasheet - Page 105

• Manufacturer Part Number: ATxmega64A3
• Manufacturer: Atmel Corporation

Specifications of ATxmega64A3

• Flash (kbytes): 64 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 Speed: No
• Usb Interface: No
• 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): 4
• 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: 7
• Output Compare Channels: 22
• Input Capture Channels: 22
• Pwm Channels: 22
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8077H–AVR–12/09
ality and not to ensure safe operation. The Brown-out detection (BOD) must be enabled to
ensure safe operation and detect if V
Only the Power-on reset Flag will be set after Power-on reset. The Brown-out Reset Flag is not
set even though the BOD circuit is used.
Figure 9-2.
Figure 9-3.
For characterization data on the V
device data sheet.
Note that the Power-on detection circuit is not designed to detect drops in the V
Brown-out detection must be enabled to detect falling V
below the V
INTERNAL
TIMEOUT
RESET
V
CC
POT
Power-On Reset (POR).
Increasing V
level.
V
POT
V
POT
V
V
CC
BOT
slope in the Power-on slope range.
V
POSR,MAX
t
TOUT
POT
CC
level for rising and falling V
voltage drops below minimum operating voltage.
V
CC
dV
dt
CC
voltage, even if the V
CC
, and V
t
V
CC
POSR
XMEGA A
slope consult the
CC
CC
level falls
voltage.
105