ATxmega384C3 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ATxmega384C3 기능
기능 8/16-bit Atmel XMEGA C3 Microcontroller
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ATxmega384C3 데이터시트, 핀배열, 회로
8/16-bit Atmel XMEGA C3 Microcontroller
High-performance, low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller
Nonvolatile program and data memories
384KBytes of in-system self-programmable flash
8KBytes boot section
32KBytes internal SRAM
Peripheral features
Two -channel DMA controller
Four-channel event system
Five 16-bit timer/counters
Four timer/counters with four output compare or input capture channels
One timer/counter with two output compare or input capture channels
High resolution extension on two timer/counters
Advanced waveform extension (AWeX) on one timer/counter
One USB device interface
USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
32 Endpoints with full configuration flexibility
Three USARTs with IrDA support for one USART
Two two-wire interfaces with dual address match (I2C and SMBus compatible)
Two serial peripheral interfaces (SPIs)
AES crypto engine
CRC-16 (CRC-CCITT) and CRC-32 (IEEE®802.3) generator
16-bit real time counter (RTC) with separate oscillator
One sixteen-channel, 12-bit, 300ksps Analog to Digital Converter
Two Analog Comparators with window compare function, and current sources
External interrupts on all general purpose I/O pins
Programmable watchdog timer with separate on-chip ultra low power oscillator
QTouch® library support
Capacitive touch buttons, sliders and wheels
Special microcontroller features
Power-on reset and programmable brown-out detection
Internal and external clock options with PLL and prescaler
Programmable multilevel interrupt controller
Five sleep modes
Programming and debug interface
PDI (program and debug interface)
I/O and packages
50 programmable I/O pins
64-lead TQFP
64-pad QFN
Operating voltage
1.6 – 3.6V
Operating frequency
0 – 12MHz from 1.6V
0 – 32MHz from 2.7V

ATxmega384C3 pdf, 반도체, 판매, 대치품
3. Overview
The Atmel AVR XMEGA is a family of low power, high performance, and peripheral rich 8/16-bit microcontrollers based
on the AVR enhanced RISC architecture. By executing instructions in a single clock cycle, the AVR XMEGA devices
achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system
designer to optimize power consumption versus processing speed.
The AVR CPU combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly
connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in a single instruction,
executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs many times
faster than conventional single-accumulator or CISC based microcontrollers.
The XMEGA C3 devices provide the following features: in-system programmable flash with read-while-write capabilities;
internal EEPROM and SRAM; two-channel DMA controller, four-channel event system and programmable multilevel
interrupt controller, 50 general purpose I/O lines, 16-bit real-time counter (RTC); five, 16-bit timer/counters with compare
and PWM channels; three USARTs; two two-wire serial interfaces (TWIs); one full speed USB 2.0 interface; two serial
peripheral interfaces (SPIs); AES cryptographic engine; one sixteen-channel, 12-bit ADC with programmable gain; two
analog comparators (ACs) with window mode; programmable watchdog timer with separate internal oscillator; accurate
internal oscillators with PLL and prescaler; and programmable brown-out detection.
The program and debug interface (PDI), a fast, two-pin interface for programming and debugging, is available.
The ATx devices have five software selectable power saving modes. The idle mode stops the CPU while allowing the
SRAM, DMA controller, event system, interrupt controller, and all peripherals to continue functioning. The power-down
mode saves the SRAM and register contents, but stops the oscillators, disabling all other functions until the next TWI,
USB resume, or pin-change interrupt, or reset. In power-save mode, the asynchronous real-time counter continues to
run, allowing the application to maintain a timer base while the rest of the device is sleeping. In standby mode, the
external crystal oscillator keeps running while the rest of the device is sleeping. This allows very fast startup from the
external crystal, combined with low power consumption. In extended standby mode, both the main oscillator and the
asynchronous timer continue to run. To further reduce power consumption, the peripheral clock to each individual
peripheral can optionally be stopped in active mode and idle sleep mode.
Atmel offers a free QTouch library for embedding capacitive touch buttons, sliders and wheels functionality into AVR
The devices are manufactured using Atmel high-density, nonvolatile memory technology. The program flash memory can
be reprogrammed in-system through the PDI. A boot loader running in the device can use any interface to download the
application program to the flash memory. The boot loader software in the boot flash section will continue to run while the
application flash section is updated, providing true read-while-write operation. By combining an 8/16-bit RISC CPU with
in-system, self-programmable flash, the AVR XMEGA is a powerful microcontroller family that provides a highly flexible
and cost effective solution for many embedded applications.
All Atmel AVR XMEGA devices are supported with a full suite of program and system development tools, including: C
compilers, macro assemblers, program debugger/simulators, programmers, and evaluation kits.


ATxmega384C3 전자부품, 판매, 대치품
5. Capacitive Touch Sensing
The Atmel QTouch library provides a simple to use solution to realize touch sensitive interfaces on most Atmel AVR
microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced
reporting of touch keys and includes Adjacent Key Suppression® (AKS®) technology for unambiguous detection of key
events. The QTouch library includes support for the QTouch and QMatrix acquisition methods.
Touch sensing can be added to any application by linking the appropriate Atmel QTouch library for the AVR
microcontroller. This is done by using a simple set of APIs to define the touch channels and sensors, and then calling the
touch sensing API’s to retrieve the channel information and determine the touch sensor states.
The QTouch library is FREE and downloadable from the Atmel website at the following location: For implementation details and other information, refer to the QTouch library user guide -
also available for download from the Atmel website.


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8/16-bit Atmel XMEGA C3 Microcontroller

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