ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 332

• Manufacturer Part Number: ATxmega128B1
• Manufacturer: Atmel Corporation

Specifications of ATxmega128B1

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 53
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Segment Lcd: 160
• 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
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 8
• 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: 3
• Output Compare Channels: 10
• Input Capture Channels: 10
• Pwm Channels: 10
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 25-15. ADC timing for one single conversion with 2x gain.
Figure 25-16. ADC timing for one single conversion with 8x gain.
8291A–AVR–10/11
GAINSTAGE SAMPLE
GAINSTAGE SAMPLE
CONVERTING BIT
CONVERTING BIT
CONVERTING BIT
CONVERTING BIT
ADC SAMPLE
ADC SAMPLE
ADC SAMPLE
ADC SAMPLE
AMPLIFY
AMPLIFY
AMPLIFY
AMPLIFY
START
START
clk
clk
ADC
ADC
IF
IF
IF
IF
1
1
msb
10
2
2
msb
msb
msb
9
10
10
10
8
3
3
7
9
9
9
6
8
8
8
4
4
5
7
7
7
4
6
6
6
5
5
3
5
5
5
2
4
4
4
6
6
Atmel AVR XMEGA B
1
3
3
3
lsb
2
2
2
7
7
1
1
1
lsb
lsb
lsb
8
8
9
9
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