ATXMEGA64D3-AU - 32MHz AVR XMEGA Microcontroller | Microchip
N.º da peça: ATXMEGA64D3-AU ✓ AtivoATXMEGA64D3-AU Visão geral
What is an 8/16-bit AVR XMEGA microcontroller? XMEGA is an enhanced RISC microcontroller family that combines AVR processing with extensive timing and event-management peripherals. The ATXMEGA64D3 belongs to the microcontroller hierarchy of embedded processors, 8/16-bit MCUs, and 32-bit-capable embedded controllers. Its 16-bit timer architecture and programmable event system make it useful when deterministic sampling, waveform generation, and communication must share precise timing relationships.
The device provides 64 KB of in-system-programmable Flash with read-while-write capability, including a 4 KB boot-code section. It also includes 2 KB of internal EEPROM and 4 KB of SRAM. According to the Microchip ATxmega64D3 product page, the family includes 50 general-purpose I/O lines, a four-channel event system, a programmable multilevel interrupt controller, five flexible 16-bit timer/counters with compare and PWM modes, three USARTs, and two two-wire serial interfaces.
Operating at up to 32 MHz, the XMEGA D3 architecture supports computationally intensive embedded tasks while retaining the deterministic peripheral resources expected in industrial and communications equipment. Its boot section can protect application code from accidental modification, while read-while-write Flash allows nonvolatile code and data updates in suitable applications. The on-chip event system provides hardware routing between timer, comparator, and communication resources, reducing reliance on interrupt-only coordination.
Typical uses include industrial data acquisition, motor and power conversion control, communications equipment, low-power sensor nodes, and compact embedded control platforms. Three USARTs support multiple serial links, while the two TWI interfaces can connect sensors and EEPROM devices over a shared two-wire bus. The five 16-bit timers provide dedicated timing for counters, frequency generation, motor control, and PWM outputs.
Designers should allocate the 64 KB Flash and 4 KB SRAM carefully, provide regulated 2.7 V to 3.6 V power, and validate every peripheral connection against the manufacturer pin-description table. Boot programming and clock configuration should follow the device data sheet, while decoupling and signal-integrity practices remain necessary even at 32 MHz.
This page combines the ATXMEGA64D3-AU specifications, application guidance, package details, and drop-in alternative considerations into a practical engineering reference. It also distinguishes verified device attributes from parameters that still require confirmation before schematic release, PCB layout, firmware migration, or production sourcing.
Alternativas drop-in para ATXMEGA64D3-AU — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATXMEGA64D3-AU (mesmo formato e footprint) — diferindo em Package, Event System Channels, Family, Boot Code Section, Core Architecture.
ATXMEGA64A3-AU
✅ Drop-InConsulte o preço
Ver ficha técnica →ATXMEGA64D3-MH
✅ Drop-InConsulte o preço
Ver ficha técnica →ATXMEGA128C3-AUR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATXMEGA256A3U-AU
✅ Drop-InConsulte o preço
Ver ficha técnica →ATXMEGA384C3-AU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATXMEGA64D3-AU Classificações máximas e características elétricas
| Product Type | 8/16-bit AVR XMEGA D3 microcontroller |
| Frequência máxima de clock | 32 MHz |
| Flash Memory | 64 KB |
| Flash Organization | 32K x 16 |
| Boot Code Section | 4 KB |
| EEPROM | 2 KB |
| SRAM | 4 KB |
| General-Purpose I/O Lines | 50 |
| Event System Channels | 4 |
| Timer/Counters | 5 flexible 16-bit timer/counters |
| Real-Time Counter | 16-bit |
| USART Interfaces | 3 |
| Two-Wire Serial Interfaces | 2 |
| Tensão de alimentação | 2.7 V to 3.6 V |
| Encapsulamento | 64-pin TQFP, 14 mm x 14 mm |
| Tipo de montagem | Surface mount |
| Programming Interface | In-system programmable |
| Flash Read-While-Write | Supported |
| Programmable Multilevel Interrupt Controller | Supported |
| Status do ciclo de vida | Active |
Guia de Configuração de Pinos do ATXMEGA64D3-AU 64-pin tqfp, 14 mm x 14 mm
Configuração de pinos para ATXMEGA64D3-AU (pacote 64-pin tqfp, 14 mm x 14 mm). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para ATXMEGA64D3-AU.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ATXMEGA64D3-AU é adequado para 6 aplicaçãos: Industrial Data Acquisition, Motor and Power Conversion Control, Industrial Sensor Gateway, Communications Equipment, Programmable Logic Controller, Low-Power Embedded Control.
Industrial Data Acquisition
The ATXMEGA64D3-AU fits industrial data-acquisition equipment that must combine periodic sampling with reliable serial communications. Its five flexible 16-bit timer/counters provide compare and PWM resources, while the 32 MHz CPU supports signal processing and protocol handling without requiring a larger processor. The four-channel event system can coordinate timer events, comparator activity, and communications while reducing software timing jitter. With 64 KB of ISP Flash, 2 KB of EEPROM, and 4 KB of SRAM, the device has useful room for acquisition control, calibration tables, and communication firmware. Use the 64-pin TQFP to expose the required sensor inputs and communications lines, and validate the peripheral multiplexing against the manufacturer pin-description table.
Recomendado
Motor and Power Conversion Control
The ATXMEGA64D3-AU is appropriate for compact motor-control and power-conversion modules where multiple timing outputs must coordinate accurately. Its five 16-bit timer/counters with compare and PWM modes can drive control tasks such as rotor-position measurement, timing sequences, or power-stage command generation. The four-channel event system provides hardware event routing, helping important timing relationships respond without depending entirely on interrupt latency. At 32 MHz, the AVR XMEGA D3 core can execute supervisory control logic alongside the timing peripherals. The 2.7 V to 3.6 V operating range supports 3.3 V industrial systems, while the 64-pin TQFP provides sufficient connections for gate-drive interfaces, position inputs, communications, and protection signals.
Recomendado
Industrial Sensor Gateway
The ATXMEGA64D3-AU suits compact sensor gateways that aggregate measurements from multiple low-speed sensors and transmit the results through a serial network. Two TWI interfaces allow the controller to share an I2C bus with compatible sensors or configuration memories, while three USARTs support device uplinks, diagnostics, and external radios. The 64 KB of programmable Flash can hold protocol conversion, filtering, and configuration code, while the 4 KB SRAM provides working memory for packet assembly. Its 16-bit real-time counter and timer resources are useful for periodic sampling independent of the main application loop. Keep the 64-pin TQFP layout close to the communication interfaces and isolate sensitive analog inputs from fast-switching circuitry.
Recomendado
Communications Equipment
The ATXMEGA64D3-AU fits communication modules that need several serial ports and precise peripheral timing without a high-cost processor. Three USARTs can support independent console, host, and equipment links, while two TWI interfaces can connect local transceivers and configuration devices. The programmable multilevel interrupt controller and four-channel event system help organize protocol timing and peripheral events, while five 16-bit timers support baud-rate generation, watchdog service, pulse measurement, and periodic status reporting. The device's 32 MHz clock and 64 KB Flash provide sufficient performance for compact protocol stacks and supervisory firmware. Confirm each peripheral's pin mux and alternate-function limits in the manufacturer documentation before finalizing connector assignments.
Recomendado
Programmable Logic Controller
The ATXMEGA64D3-AU is suitable for compact programmable logic controller modules that combine deterministic I/O with embedded diagnostics. Its five flexible 16-bit timer/counters support input capture, elapsed-time measurement, pulse generation, and PWM outputs, and the four-channel event system can coordinate those channels directly. The 64 KB Flash is suitable for ladder-like control logic, communication services, and diagnostics, while 4 KB of SRAM supports state variables and communication buffers. A 2.7 V to 3.6 V supply range aligns with common 3.3 V industrial control boards, and the 64-pin TQFP provides enough I/O capacity for mixed digital inputs and outputs. Validate input thresholds, timing limits, and peripheral assignments before production release.
Recomendado
Low-Power Embedded Control
The ATXMEGA64D3-AU works well in low-power embedded controllers that need local processing without a high-performance external processor. The 64 KB Flash and 2 KB EEPROM allow firmware, constants, and persistent configuration to remain local, while the 16-bit real-time counter can support timekeeping and low-frequency wake scheduling. Its 32 MHz performance provides useful control headroom, and the integrated three-USART, two-TWI, and five-timer peripheral set reduces the number of external devices. The 64-pin TQFP package may be larger than needed for very compact products, but it simplifies access to the full peripheral set and supports a straightforward migration path from ATxmega64D3-family designs. Use the device's power-management modes and clock configuration from the manufacturer documentation to establish the actual operating budget.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATXMEGA64D3-AU — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATXMEGA64A3-AU | ATXMEGA64D3-MH | ATXMEGA128C3-AUR | ATXMEGA256A3U-AU | ATXMEGA384C3-AU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP, 14 mm x 14 mm | 64-pin TQFP | 64-pin TQFP | 64-pin TQFP | 64-pin TQFP | 64-pin TQFP |
| Flash Memory | 64 KB | 64 KB | 64 KB | 128 KB | 256 KB | 384 KB |
Principais diferenciais
- D3-family event timing with three USARTs and two TWI interfaces (vs ATXMEGA64A3-AU)
- Exact 64 KB memory class for ATXMEGA64D3-MH migration (vs ATXMEGA64D3-MH)
- Memory headroom without changing to the larger A3 family (vs ATXMEGA256A3U-AU)
Notas de projeto
Treat the 32 MHz clock and multiple high-speed serial interfaces as signal-integrity-sensitive. Route the clock path short and symmetric, provide a continuous ground reference beneath it, and keep noisy switching nodes and connector returns away from the MCU. Use the manufacturer pin-description table to identify every power, ground, reset, programming, and peripheral-multiplexing function before assigning traces; package compatibility alone does not establish functional compatibility.
Design the 2.7 V to 3.6 V rail with low transient impedance and place the required bypass capacitors adjacent to the device supply pins. Check the maximum operating frequency against the selected voltage, clock source, and temperature conditions in the datasheet. For peripheral-heavy boards, provide a quiet 3.3 V rail for the MCU while separating analog or high-current loads to prevent supply droop from disturbing timer capture and serial communication.
Do not migrate software or PCB connections by matching only the 64 KB Flash value and 32 MHz clock. The ATXMEGA64D3, A3, and C3 families can differ in timer channels, event routing, interrupt structure, alternate functions, and peripheral pin assignments. Compare the complete pin tables, fuse or configuration options, clock behavior, and peripheral registers for every proposed replacement before releasing a new PCB or production firmware.
Reserve accessible programming and debug signals even when the final product uses in-system programming. Maintain the voltage levels required by the selected programming interface and avoid routing programming signals next to switching nodes. For the 64-pin TQFP, use a footprint with a solderable exposed-thermal area only if that area belongs to the manufacturer's specified land pattern, and follow the package drawing for paste, mask, and assembly details.
Informações de conformidade
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement appears in the product information for the exact ordering code. Confirm the applicable declarations with the manufacturer before regulatory submission.