ATXMEGA32A4-CU Atmel, ATXMEGA32A4-CU Datasheet - Page 330

• Manufacturer Part Number: ATXMEGA32A4-CU
• Description: MCU AVR 32+4 FLASH 49VFBGA
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA32A4-CU

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 49-VFBGA
• Processor Series: ATXMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 4 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Operating Supply Voltage: 1.6 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 1 Channel
• On-chip Dac: 2 bit, 1 Channel
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.3
27.3.1
27.3.2
27.4
27.5
27.6
8077H–AVR–12/09
Input Channels
Start of Signal Compare
Generating Interrupts and Events
Window Mode
Pin Inputs
Internal Inputs
Each Analog Comparator has one positive and one negative input. Each input may be chosen
among a wide selection of input channels: the analog input pins, internal inputs and a scaled
inputs. The digital output from the Analog Comparator is one when the difference between the
positive and the negative input is positive, and zero when the difference is negative.
The analog input pins on the port can be selected as input to the Analog Comparator.
There are three Internal inputs that are directly available for the Analog Comparator:
In order to start a signal compare, the Analog Comparator must be configured with the preferred
properties and inputs, before the module is enabled to start comparing the two selected inputs.
The result of the comparison is continuous and available for application software and the Event
System.
The Analog Comparator can be configured to generate interrupts when the output toggles, when
output changes from zero to one (rising edge) or when the output changes from one to zero (fall-
ing edge). Events will be generated for the same condition as the interrupt, and at all times,
regardless of the interrupt being enabled or not.
Two Analog Comparators on the same analog port can be configured to work together in Win-
dow Mode. In this mode a voltage range may be defined, and the Analog Comparators may give
information about whether an input signal is within this range or not.
• Output from the DAC (If available on the specific device).
• Bandgap reference voltage.
• Voltage scaler that can do a 64-level scaling of the internal VCC voltage.
XMEGA A
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