ATxmega64B3 Atmel Corporation, ATxmega64B3 Datasheet - Page 83

• 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

Table 36-26. External Clock with prescaler
Notes:
36.14.7
8074A–AVR–10/11
Symbol
Symbol
1/t
Δt
t
t
t
t
t
CH
CR
CK
CL
CF
CK
CK
1. System Clock Prescalers must be set so that maximum CPU clock frequency for device is not exceeded.
2. The maximum frequency vs. supply voltage is linear between 1.8V and 2.7V, and the same applies for all other parameters
External 16MHz crystal oscillator and XOSC characteristics
with supply voltage conditions
Parameter
Cycle to cycle jitter
Long term jitter
Frequency error
Duty cycle
Parameter
Clock Frequency
Clock Period
Clock High Time
Clock Low Time
Rise Time (for maximum frequency)
Fall Time (for maximum frequency)
Change in period from one clock cycle to the next
Table 36-27. External 16MHz crystal oscillator and XOSC characteristics.
(2)
Condition
(1)
XOSCPWR=0, FRQRANGE=1, 2, or 3
XOSCPWR=0, FRQRANGE=1, 2, or 3
XOSCPWR=0, FRQRANGE=2 or 3
XOSCPWR=0, FRQRANGE=2 or 3
for System Clock
XOSCPWR=0, FRQRANGE=0
XOSCPWR=0, FRQRANGE=0
XOSCPWR=0, FRQRANGE=0
XOSCPWR=0, FRQRANGE=1
XOSCPWR=0, FRQRANGE=0
XOSCPWR=0, FRQRANGE=1
XOSCPWR=1
XOSCPWR=1
XOSCPWR=1
XOSCPWR=1
Condition
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
= 1.6 - 1.8V
= 2.7 - 3.6V
= 1.6 - 1.8V
= 2.7 - 3.6V
= 1.6 - 1.8V
= 2.7 - 3.6V
= 1.6 - 1.8V
= 2.7 - 3.6V
Min
4.5
2.4
4.5
2.4
11
0
0
7
Min.
Typ
<0.005
<0.005
<0.05
Typ.
<0.5
<0.5
<0.1
<10
<1
<1
<6
50
50
50
50
XMEGA B3
Max
142
1.5
1.5
90
10
Max.
Units
MHz
Units
ns
%
ns
%
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