ATXMEGA256A3B-AU Atmel, ATXMEGA256A3B-AU Datasheet - Page 33

• Manufacturer Part Number: ATXMEGA256A3B-AU
• Description: MCU AVR 256KB FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3B-AU

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Size: 256KB (128K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Controller Family/series: ATXMEGA
• No. Of I/o's: 49
• Eeprom Memory Size: 4KB
• Ram Memory Size: 16KB
• Cpu Speed: 32MHz
• Rohs Compliant: Yes
• Processor Series: XMEGA
• Core: AVR
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 16 KB
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 49
• Number Of Timers: 7
• Operating Supply Voltage: 2.5 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
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8116I–AVR–09/10
Figure 16-1. Overview of a Timer/Counter and closely related peripherals
The Hi-Resolution Extension can be enabled to increase the waveform generation resolution by
2 bits (4x). This is available for all Timer/Counters. See
page 35
The Advanced Waveform Extension can be enabled to provide extra and more advanced fea-
tures for the Timer/Counter. This are only available for Timer/Counter 0. See
Waveform Extension” on page 34
Timer/Counter
Base Counter
Compare/Capture Channel A
Timer Period
Comparator
Compare/Capture Channel B
Counter
Buffer
for more details.
Compare/Capture Channel C
Compare/Capture Channel D
Control Logic
Generation
Waveform
Capture
Control
for more details.
Prescaler
System
AWeX
Event
Dead-Time
Insertion
DTI
”Hi-Res - High Resolution Extension” on
clk
PER
Generation
Protection
Pattern
Fault
XMEGA A3B
”AWEX - Advanced
clk
PER4
33