ATxmega192D3 Atmel Corporation, ATxmega192D3 Datasheet - Page 95
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ATxmega192D3
Manufacturer Part Number
ATxmega192D3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega192D3
Flash (kbytes)
192 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
5
Twi (i2c)
2
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
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
5
Output Compare Channels
18
Input Capture Channels
18
Pwm Channels
18
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega192D3-AU
Manufacturer:
CYPRESS
Quantity:
101
Company:
Part Number:
ATxmega192D3-AU
Manufacturer:
ATMEL
Quantity:
70
Company:
Part Number:
ATxmega192D3-H
Manufacturer:
SQ
Quantity:
719
Company:
Part Number:
ATxmega192D3-MH
Manufacturer:
Atmel
Quantity:
565
8134I–AVR–12/10
Figure 33-2. Analog Comparator Voltage Scaler vs. Scalefac
3. ADC gain stage cannot be used for single conversion
4.
5. ADC gain stage output range is limited to 2.4 V
Problem fix/Workaround
Use external voltage input for the analog comparator if accurate voltage levels are needed
The ADC gain stage will not output correct result for single conversion that is triggered and
started from software or event system.
Problem fix/Workaround
When the gain stage is used, the ADC must be set in free running mode for correct results.
ADC has increased INL error for some operating conditions
Some ADC configurations or operating condition will result in increased INL error.
In signed mode INL is increased to:
– 6LSB for sample rates above 130ksps, and up to 8LSB for 200ksps sample rate.
– 6LSB for reference voltage below 1.1V when VCC is above 3.0V.
– 20LSB for ambient temperature below 0 degree C and reference voltage below 1.3V.
In unsigned mode, the INL error cannot be guaranteed, and this mode should not be used.
Problem fix/Workaround
None, avoid using the ADC in the above configurations in order to prevent increased INL
error. Use the ADC in signed mode also for single ended measurements.
The amplified output of the ADC gain stage will never go above 2.4 V, hence the differential
input will only give correct output when below 2.4 V/gain. For the available gain settings, this
gives a differential input range of:
3.5
2.5
1.5
0.5
3
2
1
0
0
T = 25°C
5
10
15
20
25
SCALEFAC
30
35
40
45
50
55
XMEGA D3
60
65
3.3 V
2.7 V
1.8 V
95