ATxmega64B3 Atmel Corporation, ATxmega64B3 Datasheet - Page 79

• Manufacturer Part Number: ATxmega64B3
• Manufacturer: Atmel Corporation

Specifications of ATxmega64B3

• 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: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• 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: 2
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

36.10 Brownout Detection Characteristics
Table 36-15. Brownout Detection Characteristics
Note:
36.11 External Reset Characteristics
Table 36-16. External Reset Characteristics
36.12 Power-on Reset Characteristics
Table 36-17. Power-on Reset Characteristics
Note:
8074A–AVR–10/11
Symbol
Symbol
Symbol
V
V
V
V
t
t
POT-
BOD
HYST
POT+
EXT
RST
(1)
1. BOD is calibrated at 85°C within BOD level 0 values, and BOD level 0 is the default level.
1. Both V
Parameter
BOD level 0 falling Vcc
BOD level 1 falling Vcc
BOD level 2 falling Vcc
BOD level 3 falling Vcc
BOD level 4 falling Vcc
BOD level 5 falling Vcc
BOD level 6 falling Vcc
BOD level 7 falling Vcc
Detection time
Hysteresis
Parameter
Minimum reset pulse width
Reset threshold voltage
Parameter
POR threshold voltage falling V
POR threshold voltage rising V
POT-
values are only valid when BOD is disabled. When BOD is enabled the µBOD is enabled, and V
CC
CC
V
V
V
V
CC
CC
CC
CC
= 2.7 - 3.6V
= 1.6 - 2.7V
falls faster than 1V/ms
falls at 1V/ms or slower
(1)
Continous mode
Sampled mode
Condition
Condition
Condition
Min
Min
0.4
0.8
Min
0.50*V
0.40*V
Typ
Typ
1.0
1.0
1.3
90
1000
Typ
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
0.4
1.6
CC
CC
XMEGA B3
1000
Max
Max
1.59
POT-
Max
=V
POT+
Units
Units
Units
µs
%
ns
V
V
V
79