ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 70

• Manufacturer Part Number: ATxmega256A3U
• Manufacturer: Atmel Corporation

Specifications of ATxmega256A3U

• 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: 50
• Ext Interrupts: 50
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• 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): 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

Table 35-5.
Notes:
Table 35-6.
Note:
8386A–AVR–07/11
Symbol
Symbol
DNL
INL
Rin
Cin
(1)
(1)
1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.
2. Unless otherwise noted all linearity, offset and gain error numbers are valid under the condition that external VREF is used.
1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.
Parameter
Input resistance
Input capacitance
Signal range
Propagation delay
Clock rate
Integral Non-Linearity
Differential Non-Linearity
Gain Error
Offset Error, input
refered
Parameter
Gain Error
ADC Characteristics (Continued)
ADC Gain Stage Characteristics
Switched in normal mode
Switched in normal mode
Gain stage output
ADC conversion rate
Same as ADC
500kSPS
1x gain, normal mode
8x gain, normal mode
64x gain, normal mode
1x gain, normal mode
8x gain normal mode
64x gain normal mode
Differential
mode
Temperature drift
Operating voltage drift
All gain settings
All gain setting, guaranteed
monotonic
Condition
External reference
AVCC/1.6
AVCC/2.0
Bandgap
Condition
(2)
Min
100
0
Min
±2.0
Typ
±0.9
-0.8
-2.5
-3.5
<0.02
4.0
4.4
<0.5
-2
-5
-4
Typ
1
±5
10
-1
8
XMEGA A3U
V
CC
1000
Max
Max
1.5
4
- 0.6
Clk
cycles
Units
mV/K
mV/V
Units
LSB
kHz
mV
mV
kΩ
pF
%
V
ADC
70