ATxmega256A3B Atmel Corporation, ATxmega256A3B Datasheet - Page 37

• Manufacturer Part Number: ATxmega256A3B
• Manufacturer: Atmel Corporation

Specifications of ATxmega256A3B

• Flash (kbytes): 256 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: 47
• Ext Interrupts: 49
• Usb Speed: No
• Usb Interface: No
• Spi: 8
• Twi (i2c): 2
• Uart: 6
• 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): 16
• Eeprom (bytes): 4096
• 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

4.17.4
4.17.5
4.17.6
4.17.7
8077H–AVR–12/09
LOTNUM0 - Lot Number Register 0
LOTNUM1 - Lot Number Register 1
LOTNUM2 - Lot Number Register 2
LOTNUM3- Lot Number Register 3
LOTNUM0, LOTNUM1, LOTNUM2, LOTNUM3, LOTNUM4 and LOTNUM5 contains the LOT
number for each device. Together with the wafer number and wafer coordinates this gives an
unique identifier or serial number for the device.
• Bit 7:0 - LOTNUM0[7:0] - LOT Number Byte 0
This byte contains byte 0 of the LOT number for the device.
• Bit 7:0 - LOTNUM1[7:0] - LOT Number Byte 1
This byte contains byte 1 of the LOT number for the device.
• Bit 7:0 - LOTNUM2[7:0] - LOT Number Byte 2
This byte contains byte 2 of the LOT number for the device.
• Bit 7:0 - LOTNUM3[7:0] - LOT Number Byte 3
This byte contains byte 3 of the LOT number for the device.
Bit
+0x07
Read/Write
Initial Value
Bit
+0x07
Read/Write
Initial Value
Bit
+0x08
Read/Write
Initial Value
Bit
+0x09
Read/Write
Initial Value
R
R
R
R
7
x
7
x
7
x
7
x
R
R
R
R
6
x
6
x
6
x
6
x
R
R
R
R
5
5
5
5
x
x
x
x
4
R
4
R
4
R
4
R
x
x
x
x
LOTNUM0[7:0]
LOTNUM1[7:0]
LOTNUM2[7:0]
LOTNUM3[7:0]
R
R
R
R
3
x
3
x
3
x
3
x
R
R
R
R
2
2
2
2
x
x
x
x
R
R
R
R
1
1
1
1
x
x
x
x
XMEGA A
0
R
0
R
0
R
0
R
x
x
x
x
LOTNUM0
LOTNUM1
LOTNUM2
LOTNUM3
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