ATxmega64A3 Atmel Corporation, ATxmega64A3 Datasheet - Page 278

• 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

24.10.2
Table 24-5.
Note:
8077H–AVR–12/09
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
CLKPER2
AH
AS
CH
CL
CKH
CKS
CMH
CMS
DRH
DRS
DWH
DWS
1. For characterization of Clk
SDRAM
Parameter
Clock period
Address Hold time
Address Setup time
Clock High-level witdh
Clock low-level witdh
CKE Hold time
CKE Setup time
CS, RAS, CAS, WE, DQM hold time
CS, RAS, CAS, WE, DQM setup time
Data in Hold
Data in Setup
Data out Hold
Data out Setup
EBI SDRAM Characteristics
SYS
and t
(1)
DRS
refer to device data sheet
Min
2 x Clk
TBD
SYS
0.5 x
0.5 x
0.5 x
0.5 x
0.5 x
0.5 x
0.5 x
0.5 x
0.5 x
0
0.5 x
0.5 x
t
t
t
t
t
t
t
t
t
t
t
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
CLKPER2
Typical
Max
XMEGA A
Uni
t
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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