ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 35

• 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

18. Hi-Res - High Resolution Extension
18.1
18.2
8386A–AVR–07/11
Features
Overview
•
•
•
The Hi-Resolution (Hi-Res) Extension is able to increase the resolution of the waveform genera-
tion output by a factor of four or eight. It can be used for a Timer/Counter doing Frequency,
Single Slope PWM or Dual Slope PWM generation. It can also be used with the AWeX if this is
used for the same Timer/Counter.
Atmel
each Timer/Counters pair on PORTC, PORTD, PORTE and PORTF. The notation of these are
HIRESC, HIRESD, HIRESE and HIRESF, respectively.
Increases Waveform Generator resolution by up to 8 times (3-bit)
Supports Frequency, Single Slope PWM and Dual Slope PWM generation
Supports the AWEX when this is used for the same Timer/Counter
®
AVR
®
XMEGA
®
A3U devices have four Hi-Res Extensions that each can be enabled for
XMEGA A3U
35