ATXMEGA64D4-AN - 32MHz 64KB AVR Microcontroller | Microchip
부품 번호: ATXMEGA64D4-AN ✓ 활성ATXMEGA64D4-AN 개요
An 8/16-bit microcontroller is a programmable semiconductor that executes firmware, reads sensors, controls actuators, and manages communications within an embedded product. The ATXMEGA64D4 belongs to the AVR XMEGA family, a low-power, high-performance architecture with integrated flash, EEPROM, SRAM, timers, serial interfaces, and general-purpose I/O. This combination reduces the number of supporting components needed for control-oriented embedded designs.
Key features include read-while-write in-system-programmable Flash, a 4 KB boot-code section, 2 KB of EEPROM, 4 KB of SRAM, 34 general-purpose I/O lines, and four flexible 16-bit timer/counter modules with compare and PWM channels. The device also provides two USARTs, two two-wire serial interfaces, a four-channel event system, and a 16-bit real-time counter. These resources support simultaneous control, communications, timing, and data-retention requirements.
The ATXMEGA64D4 architecture is intended for low-power, real-time embedded control while retaining substantial peripheral integration. Read-while-write Flash allows nonvolatile program storage to operate concurrently with suitable code execution, while separate SRAM and EEPROM support working data and persistent parameter retention. The programmable interrupt controller and event system help connect asynchronous peripheral events without requiring every event to be handled through a main polling loop.
Typical uses include industrial sensor controllers, compact data-acquisition modules, motor and actuator control, communication bridges, and low-power embedded instruments. Its two USARTs can support host or peer serial links, while its two TWI interfaces support external EEPROM, sensor, and other TWI-compatible peripherals. The 34 I/O lines make it useful when a system needs more parallel control than a small 8- or 16-pin MCU can provide.
A primary design consideration is the combination of Flash capacity and SRAM partitioning. Firmware, boot code, stack usage, and application data must be planned together, and the manufacturer datasheet should define the programming and bootloader workflow before the PCB is finalized. Decoupling, clock configuration, programming access, and unused-pin handling must also follow the device-specific recommended layout.
This product page consolidates the verified device specifications, package details, sourcing information, and engineering guidance needed to evaluate the ATXMEGA64D4-AN. It also provides practical application and PCB guidance for engineers determining whether the AVR XMEGA D4 feature set fits a new embedded design.
드롭인 대체품: ATXMEGA64D4-AN — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATXMEGA64D4-AN (동일 폼 팩터 및 풋프린트) — 차이점: Package, Supply Voltage Range.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청ATXMEGA64D4-AN 최대 정격 & 전기적 특성
| CPU Core | 8/16-bit AVR XMEGA enhanced RISC |
| 최대 클록 주파수 | 32 MHz |
| Program Flash Memory | 64 KB (32K x 16) |
| Boot Code Section | 4 KB |
| Flash Feature | In-system programmable with read-while-write |
| EEPROM Memory | 2 KB |
| SRAM Memory | 4 KB |
| General-Purpose I/O Lines | 34 |
| Event System | 4 channels |
| Timer/Counter Modules | 4 flexible 16-bit units |
| USART Modules | 2 |
| Two-Wire Serial Interfaces | 2 |
| Real-Time Counter | 16-bit |
| Supply Voltage Range | 1.6 V to 3.6 V |
| 동작 온도 | -40 C to +105 C |
| 패키지 | 44-pin TQFP, 10 x 10 mm |
| Package Pin Pitch | 0.8 mm |
| 실장 유형 | Surface mount |
ATXMEGA64D4-AN 0.8 mm 핀 구성 가이드
ATXMEGA64D4-AN(0.8 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATXMEGA64D4-AN.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATXMEGA64D4-AN 적합 용도: 6 애플리케이션s: Industrial Sensor Controller, Motor and Actuator Control, Communication Bridge, Low-Power Data Acquisition, Compact Embedded Instrument, Programmable Logic Controller.
Industrial Sensor Controller
The ATXMEGA64D4-AN is suitable for an industrial sensor controller that combines several measurement channels with local processing and serial reporting. Its 34 general-purpose I/O lines can accommodate digital sensors, alarm outputs, status indicators, and discrete control signals, while four 16-bit timer/counters support precise sampling intervals, input capture, and PWM generation. The 4 KB SRAM provides working space for acquisition buffers, and the 2 KB EEPROM can preserve calibration coefficients or configuration parameters. Two USARTs permit simultaneous sensor-interface and host communications, while the two TWI interfaces can connect external sensors or nonvolatile memory. The 1.6 V to 3.6 V operating range suits compact low-voltage designs, and the -40 C to +105 C range supports industrial temperature environments when the enclosure, power supply, and signal conditioning are appropriately qualified.
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Motor and Actuator Control
The ATXMEGA64D4-AN fits compact motor and actuator control where accurate timing, multiple I/O channels, and local serial coordination are required. Its four flexible 16-bit timer/counter modules can generate center-aligned or edge-aligned PWM for motor speed or valve positioning and can capture input timing for feedback monitoring. Thirty-four general-purpose I/O lines leave room for direction controls, limit switches, gate-driver enables, fault signals, and communication multiplexing. The event system can connect peripheral events directly, reducing the polling burden on the CPU in time-critical control loops. The AVR XMEGA core operates up to 32 MHz, while 64 KB of Flash accommodates motion algorithms and 4 KB of SRAM supports state management. Actual drive-stage selection must also account for voltage, current, isolation, thermal requirements, and electromagnetic compatibility.
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Communication Bridge
The ATXMEGA64D4-AN can serve as a communication bridge between local serial devices and a higher-level controller. Two USARTs support two independent asynchronous serial links, while two TWI interfaces allow connection to TWI-compatible sensors, memory, or peripherals. Its four-channel event system can coordinate data-ready and timing signals between those interfaces, and the programmable multilevel interrupt controller helps prioritize incoming events. Sixty-four kilobytes of Flash provides room for protocol conversion, buffering logic, diagnostics, and boot code, while 4 KB of SRAM supports active message and packet buffers. The device's 1.6 V to 3.6 V supply range simplifies integration with low-voltage system rails. A production design should define baud-rate tolerance, bus idle levels, termination, isolation, watchdog behavior, and firmware update procedures in addition to confirming peripheral pin assignments.
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Low-Power Data Acquisition
The ATXMEGA64D4-AN is appropriate for compact data-acquisition equipment that must sample, process, and retain information without a separate processor for every peripheral function. Four 16-bit timer/counters can establish precise acquisition timing and trigger intervals, while the four-channel event system routes events among timers and communications peripherals. Thirty-four I/O lines provide parallel sensor inputs, range-select controls, and status outputs, and the two USARTs can transfer results to a computer or network interface. The 64 KB program Flash supports buffering and conversion code, the 4 KB SRAM supports active samples, and the 2 KB EEPROM can retain instrument settings. Because low-power performance depends on firmware and peripheral activity, use the manufacturer sleep and clock configuration guidance, disable unused blocks, and place analog circuitry according to the complete signal-chain requirements.
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Compact Embedded Instrument
The ATXMEGA64D4-AN is well suited to compact instruments requiring a display interface, keypad input, measurement control, and data logging. Its 34 I/O lines can support display strobes, buttons, indicators, and external measurement-control signals, while four timer/counters can manage display refresh, input debouncing, and sampling. Two USARTs can serve external measurement hardware and a host interface, and the two TWI interfaces can connect expanders or configuration memory. Sixty-four kilobytes of Flash offers space for user-interface logic, calibration routines, and protocol handlers, while 2 KB of EEPROM can preserve setup values and calibration coefficients. The industrial temperature option supports instrumentation across -40 C to +105 C. Display drivers, analog front ends, power supplies, and communication transceivers remain separate system components and must be selected for the required voltage, speed, and environmental conditions.
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Programmable Logic Controller
The ATXMEGA64D4-AN can serve as the processor in a compact programmable logic controller for discrete monitoring and sequencing. Thirty-four I/O lines support digital inputs, outputs, and status functions, while the four 16-bit timers provide timing resources for counters, pulse measurement, and output modulation. The programmable multilevel interrupt controller and four-channel event system help coordinate multiple asynchronous I/O events, while two USARTs and two TWI interfaces provide expansion paths for modules and service communications. Its 64 KB of Flash supports ladder or state-machine execution code, 4 KB of SRAM stores active I/O and task state, and 2 KB of EEPROM retains program parameters. The 1.6 V to 3.6 V operating range supports integrated low-voltage systems. Industrial deployment should additionally address input filtering, output drive capacity, galvanic isolation, surge protection, functional safety, and watchdog behavior.
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추천 제품 요약
엔지니어링 참조 데이터: ATXMEGA64D4-AN — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Package | 44-pin TQFP (10 x 10 mm) |
| Brand | Microchip Technology |
| CPU Core | 8/16-bit AVR XMEGA |
| Maximum Clock Frequency | 32 MHz |
| Program Flash Memory | 64 KB |
| EEPROM Memory | 2 KB |
| SRAM Memory | 4 KB |
| General-Purpose I/O Lines | 34 |
| Timer/Counter Modules | 4 flexible 16-bit units |
| USART Modules | 2 |
| Two-Wire Serial Interfaces | 2 |
| Supply Voltage Range | 1.6 V to 3.6 V |
주요 차별점
- Substantial memory capacity within the AVR XMEGA D4 family (vs ATXMEGA32D4-AN)
- More program space than the lower-density D4 option (vs ATXMEGA16D4-AN)
- Balanced memory and peripheral density for embedded control (vs ATXMEGA128D4-AN)
설계 노트
Follow the manufacturer datasheet's power-network and decoupling recommendations when assigning VCC and ground pins. Keep the 1.6 V to 3.6 V operating range in view for every supply rail, and account for voltage tolerance, startup sequencing, and the current drawn by active peripherals. Place the required bypass capacitors close to their associated supply pins, use a low-impedance ground reference, and avoid routing high-current or switching-node return paths through the MCU ground area.
Use the package drawing and pin-description tables in the manufacturer datasheet for the 44-lead 10 x 10 mm TQFP layout. Preserve access to the programming interface and avoid long traces between the MCU and its decoupling capacitors. The 0.8 mm pitch requires controlled PCB fabrication and inspection; verify minimum trace widths, clearances, solder-mask geometry, and assembly capability before releasing the layout. Keep sensitive reset, clock, and programming nets away from noisy power-stage or motor-drive traces.
Do not select a replacement solely from clock speed or Flash capacity. Verify the 44-pin TQFP footprint, complete pin function, supply range, SRAM and EEPROM needs, peripheral assignments, interrupt behavior, programming method, boot configuration, and temperature grade. The 64 KB Flash includes a 4 KB boot-code section, so changing device density can alter bootloader placement or memory-map assumptions. Revalidate timing, startup, watchdog, and firmware size after any substitution.
Plan clock, reset, programming, and communication routing before fixing the printed-circuit-board layer stack. Keep the reset network close to the device, avoid routing high-current edges near the 32 MHz clock path, and maintain short return paths for external interfaces. Two USARTs, two TWI interfaces, four timers, and 34 I/O lines can create dense routing in a 10 x 10 mm package; use careful escape routing and test-point access where space permits without compromising signal integrity.
규정 준수 정보
The manufacturer product and distributor listings identify a green industrial-temperature device but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations.