ATXMEGA64D4-AU - 32MHz 64KB AVR MCU | Microchip
MPN： ATXMEGA64D4-AU ✓ 啟用中ATXMEGA64D4-AU 概覽
An 8/16-bit microcontroller is a compact embedded controller that executes instructions from internal program and data memory while integrating peripherals for communication, timing, interrupts, and signal control. In the broader device hierarchy, the ATXMEGA64D4-AU belongs to the AVR family, the XMEGA D4 subfamily, and ultimately the semiconductor and embedded-control categories. Its enhanced RISC architecture supports predictable instruction throughput suitable for motor, communications, instrumentation, and industrial control designs.
Verified device features include read-while-write in-system-programmable flash, a 4 KB boot-code section, a four-channel event system, a programmable multilevel interrupt controller, four flexible 16-bit timer/counter blocks, a 16-bit real-time counter, two USARTs, two two-wire serial interfaces, and additional connectivity documented in the AVR XMEGA D4 datasheet. This peripheral mix supports simultaneous sensor acquisition, actuator timing, serial links, and event-based signal routing.
The ATXMEGA64D4-AU combines 64 KB of flash with only 4 KB of SRAM, making flash utilization and interrupt timing important design considerations. Firmware should use the documented memory regions carefully, avoid unnecessary blocking routines, and reserve SRAM for stacks, buffers, and time-critical data. In-system programming and read-while-write operation can simplify firmware updates, although application code must observe the device's program-memory execution restrictions.
Typical applications include industrial control panels, sensor hubs, motor-control peripherals, data-acquisition modules, building-control nodes, low-power serial gateways, and compact embedded instruments. The 34 I/O lines allow connection of sensors, displays, communications transceivers, and actuators while retaining dedicated peripheral functions. Compared with simpler 8-bit MCUs, the XMEGA D4 architecture offers higher clock speed and a broader peripheral set; compared with higher-end 32-bit MCUs, it offers a simpler control-oriented architecture and lower memory capacity.
Designers should verify every package pin, alternate-function mapping, voltage domain, and peripheral limit against the manufacturer datasheet before layout release. The -AU ordering information identifies the 44-pin TQFP device, but package suffixes, temperature grades, clock options, and programmed variants must be checked during procurement. A hardware design should preserve the recommended decoupling, programming-interface access, clock stability, and exposed-ground layout practices specified by Microchip.
This page consolidates the verified manufacturer and distributor information for ATXMEGA64D4-AU with engineering-focused selection guidance. It distinguishes documented capabilities from unavailable details, emphasizes the 32 MHz and 64 KB memory limits, and avoids treating functionally similar MCUs as verified drop-in replacements. For sourcing, use the linked distributor records to confirm current inventory, price, delivery, and exact suffix handling.
直接替換替代品，適用於 ATXMEGA64D4-AU — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATXMEGA64D4-AU （相同外形與佔位） — 差異在於 Package, Boot Code Section, SRAM, Core Architecture, Supply Voltage Range.
ATXMEGA64D4-AUR
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA64D4-AN
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA64D4-ANR
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA64D4-CU
✅ 直接替換聯絡詢價
查看資料表 →ATXMEGA64D4-MH
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA64D4-MHR
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA64D4-AU 最大額定值與電氣特性
| Microcontroller Type | 8/16-bit AVR XMEGA D4 microcontroller |
| 最大時脈頻率 | 32 MHz |
| Program Memory | 64 KB Flash |
| Flash Organization | 32K x 16 bits |
| Boot Code Section | 4 KB |
| EEPROM | 2 KB |
| SRAM | 4 KB |
| General-Purpose I/O Lines | 34 |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Event System | 4 channels |
| Timer/Counter Blocks | 4 flexible 16-bit timer/counters |
| Real-Time Counter | 16-bit |
| USART Interfaces | 2 |
| Two-Wire Serial Interfaces | 2 |
| 封裝 | 44-pin TQFP, 10 mm x 10 mm |
| 安裝類型 | Surface mount |
| Programmable Interrupt Levels | Multiple levels |
| Flash Programming | In-system programmable with read-while-write |
| Core Architecture | AVR enhanced RISC |
ATXMEGA64D4-AU 44-pin tqfp, 10 mm x 10 mm 腳位配置指南
ATXMEGA64D4-AU（44-pin tqfp, 10 mm x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATXMEGA64D4-AU.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATXMEGA64D4-AU 適用於 6 應用s: Industrial Sensor and Control Hub, Serial Gateway and Communications Node, Motor and Actuator Control Module, Data Acquisition and Instrumentation Node, Low-Power Building Automation Node, Embedded Consumer and HMI Controller.
Industrial Sensor and Control Hub
ATXMEGA64D4-AU fits an industrial sensor hub because its 34 general-purpose I/O lines can connect digital sensors, discrete inputs, status indicators, and actuator-control signals while two USARTs and two two-wire serial interfaces support external transceivers and sensor buses. The four flexible 16-bit timer/counter blocks can provide periodic sampling, timing, and PWM-related functions, while the four-channel event system can route events between peripherals with less polling. A compact 44-pin TQFP also helps reduce board area, but the design must verify isolation, protection, operating temperature, and grounding against the complete industrial system requirements.
推薦
Serial Gateway and Communications Node
ATXMEGA64D4-AU is appropriate for a serial gateway when the design needs multiple communication interfaces without moving immediately to a higher-memory 32-bit MCU. The two USARTs and two two-wire serial interfaces provide options for host links, sensor networks, local service ports, and transceiver connections. Its 32 MHz operating speed supports responsive protocol handling, while 64 KB Flash provides room for application firmware and 2 KB EEPROM can retain configuration data. Validate protocol timing, interrupt latency, buffer strategy, and electrical levels with the selected external transceivers.
推薦
Motor and Actuator Control Module
ATXMEGA64D4-AU can coordinate timing and control functions in a compact motor or actuator module because it provides four flexible 16-bit timer/counters and 34 I/O lines. Timers can support precise interval generation, edge timing, capture-oriented functions, and PWM-related peripheral requirements, while the event system can connect internal signals without relying entirely on software polling. The 4 KB SRAM limit means motion-control buffers and stack depth must be budgeted carefully. External gate drivers, protection networks, current sensing, and thermal monitoring are required where the application exceeds the MCU's direct I/O capability.
推薦
Data Acquisition and Instrumentation Node
ATXMEGA64D4-AU suits compact instrumentation nodes that acquire digital measurements and coordinate multiple sensors. Its 34 I/O lines provide access to sensor enables, interrupt inputs, alarm outputs, and local controls, while the four timer/counters can define acquisition intervals and measurement windows. The 64 KB Flash capacity is useful for protocol, filtering, calibration, and diagnostics, while 2 KB EEPROM can store limited persistent parameters. Because the supplied data does not specify ADC resolution, analog channels, or operating-temperature limits, analog front-end selection and calibration must be verified separately.
推薦
Low-Power Building Automation Node
ATXMEGA64D4-AU can serve as the local controller in a building-automation node controlling lighting outputs, monitoring inputs, and communicating with room equipment. The 32 MHz clock and event system support responsive event handling, while the two-wire interfaces are useful for common embedded sensor buses and the USARTs can connect to local transceivers. Its low-power MCU positioning should be validated against the actual duty cycle, clock configuration, sleep modes, and wake-up sources in the datasheet. The 44-pin TQFP footprint requires careful routing of power, ground, communications, and relay-driver connections.
推薦
Embedded Consumer and HMI Controller
ATXMEGA64D4-AU is suitable for compact human-machine interface controllers, parameter-setting panels, and embedded consumer modules that need local I/O and serial connectivity. The 34 I/O lines can support buttons, indicators, display-control signals, and external interface logic, while the two USARTs and two-wire interfaces provide flexible peripheral attachment. Its 64 KB Flash and 4 KB SRAM are adequate for many modest control interfaces but may constrain graphics-heavy or highly connected designs. Display drivers, touch controllers, audio functions, and power rails should be selected and validated independently.
推薦
推薦產品摘要
工程參考資料，適用於 ATXMEGA64D4-AU — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATXMEGA64D4-AUR | ATXMEGA64D4-AN | ATXMEGA64D4-ANR | ATXMEGA64D4-CU | ATXMEGA64D4-MH |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) |
| Core Architecture | AVR enhanced RISC, 8/16-bit | AVR XMEGA D4 family variant | AVR XMEGA D4 family variant | AVR XMEGA D4 family variant | AVR XMEGA D4 family variant | AVR XMEGA D4 family variant |
| Maximum Clock Frequency | 32 MHz | 32 MHz family specification; exact variant limits require datasheet confirmation | 32 MHz family specification; exact variant limits require datasheet confirmation | 32 MHz family specification; exact variant limits require datasheet confirmation | 32 MHz family specification; exact variant limits require datasheet confirmation | 32 MHz family specification; exact variant limits require datasheet confirmation |
| Flash Memory | 64 KB | 64 KB family specification | 64 KB family specification | 64 KB family specification | 64 KB family specification | 64 KB family specification |
| EEPROM | 2 KB | 2 KB family specification | 2 KB family specification | 2 KB family specification | 2 KB family specification | 2 KB family specification |
| SRAM | 4 KB | 4 KB family specification | 4 KB family specification | 4 KB family specification | 4 KB family specification | 4 KB family specification |
| Serial Interfaces | 2 USARTs and 2 two-wire serial interfaces | Family-level interface count; exact variant confirmation required | Family-level interface count; exact variant confirmation required | Family-level interface count; exact variant confirmation required | Family-level interface count; exact variant confirmation required | Family-level interface count; exact variant confirmation required |
主要差異化特點
- Broad serial connectivity in an 8/16-bit MCU (對比ATXMEGA64D4-AN)
- 64 KB Flash with a 4 KB boot section (對比ATXMEGA64D4-AUR)
- Four-channel event system with four 16-bit timer/counters (對比ATXMEGA64D4-ANR)
設計說明
Plan the power tree before assigning ATXMEGA64D4-AU I/O. The verified device range is low voltage, but the exact current, voltage-domain, and absolute-maximum limits for each I/O condition must be taken from the manufacturer datasheet. Place required decoupling capacitors close to the supply and ground pins, route high-current loads away from the MCU return path, and use separate filtering or protection for externally connected lines. Do not infer a complete power budget from the distributor snippets alone.
Use the exact 44-pin TQFP 10 mm by 10 mm footprint from the ATxmega64D4 datasheet and verify pin numbering in the CAD library. Keep clock, programming-interface, and sensitive communication routes away from noisy switching nodes. Because the verified data does not provide a complete exposed-pad or thermal-land instruction for this exact ordering code, check the package drawing before release. Confirm alternate-function multiplexing for USART, two-wire, timer, event-system, and interrupt pins.
Avoid treating related ATxmega64D4 suffix variants as automatically interchangeable. The supplied cross-reference results identify ATXMEGA64D4-AUR, ATXMEGA64D4-AN, ATXMEGA64D4-ANR, ATXMEGA64D4-CU, ATXMEGA64D4-MH, and ATXMEGA64D4-MHR as related parts, but they do not provide a complete verified pin, temperature, and electrical comparison. Check the Microchip ordering table, lifecycle record, and package drawing before purchasing a substitute.
合規資訊
The verified distributor and manufacturer snippets do not explicitly provide compliance declarations for the exact ATXMEGA64D4-AU MPN. Related cross-reference information must not be transferred as an exact-MPN compliance claim without supporting documentation.
