ATXMEGA64D4-CU - 32MHz 64KB AVR Microcontroller | Microchip
Référence : ATXMEGA64D4-CU ✓ ActifATXMEGA64D4-CU Présentation
An 8/16-bit microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, working memory, peripherals, and communication interfaces on one package. The ATXMEGA64D4 belongs to the AVR XMEGA product family and extends the AVR enhanced RISC architecture into a higher-performance, peripheral-rich platform. Its hierarchy is microcontroller → 8/16-bit microcontroller → AVR XMEGA microcontroller → XMEGA D4 device, placing it between general-purpose 8-bit control and more demanding 16-bit embedded processing.
Verified device features include 64 KB of ISP Flash in a 32K x 16 organization, a separate 4 KB boot-code section, 2 KB EEPROM, and 4 KB SRAM. Read-while-write operation allows supported code regions to execute while another Flash area is updated. The four-channel event system can coordinate timing-sensitive internal operations without relying entirely on software polling, while the programmable multi-level interrupt controller helps prioritize real-time events. The compact 49-VFBGA package reduces board area compared with larger leaded or QFN packages.
The ATXMEGA64D4 uses the AVR enhanced RISC core and supports operation from a 1.6 V to 3.6 V supply, making it appropriate for embedded systems that require more memory and event-driven control than typical entry-level 8-bit MCUs. Distributor listings identify I2C, IrDA, SPI, and UART/USART connectivity for the compared D4-class device, while the manufacturer describes a high-performance, low-power platform with integrated event handling and interrupt resources.
Typical uses include compact industrial control modules, low-power sensor nodes, building and automation controllers, communication equipment, motor-control peripherals, and compact consumer products. The 32 MHz operating speed provides useful headroom for protocol processing and coordinated peripheral activity, while 64 KB Flash supports a bootloader and a larger application than many basic 8-bit controllers. Designers still need to confirm speed, analog, and peripheral limits against the full Microchip datasheet for each operating voltage.
The main design consideration is the 49-VFBGA land pattern. Its fine pitch and exposed thermal pad require careful PCB design, stencil selection, reflow-profile control, and assembly inspection. Because the verified package drawing and complete 49-pin electrical map were not included in the supplied sources, engineers should download the official ATxmega64D4 documentation before defining the footprint, programming connector, and decoupling network.
This page consolidates verified manufacturer and distributor information, distinguishes same-package candidates from non-drop-in comparisons, and adds application guidance and PCB cautions that are not available from a basic distributor listing alone.
Alternatives de remplacement direct pour ATXMEGA64D4-CU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATXMEGA64D4-CU (même facteur de forme et même empreinte) — différant par Package, EEPROM, Interrupt Controller, Program Memory.
ATXMEGA64A4-CU
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ATXMEGA64E5-CU
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ATXMEGA64D4-CU Valeurs maximales et caractéristiques électriques
| Product Type | 8/16-bit AVR XMEGA D4 microcontroller |
| CPU Core | AVR enhanced RISC |
| Fréquence d'horloge maximale | 32 MHz |
| Flash Memory | 64 KB (32K x 16) |
| Boot Code Section | 4 KB |
| Read-While-Write | Supported |
| EEPROM | 2 KB |
| SRAM | 4 KB |
| Operating Voltage Range | 1.6 V to 3.6 V |
| Event System | 4 channels |
| Interrupt Controller | Programmable multi-level interrupt system |
| Connectivity | I2C, IrDA, SPI, UART/USART |
| Boîtier | 49-VFBGA (5x5 mm) |
| Nombre de broches | 49 pins |
| Type de montage | Surface mount |
Guide de configuration des broches du ATXMEGA64D4-CU 49-vfbga (5x5 mm)
Configuration des broches du ATXMEGA64D4-CU (boîtier 49-vfbga (5x5 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATXMEGA64D4-CU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATXMEGA64D4-CU convient pour 6 applications: Compact Industrial Control Module, Low-Power Sensor Node, Building Automation Controller, Serial Communication Equipment, Precision Timing Control, Compact Consumer Controller.
Compact Industrial Control Module
The ATXMEGA64D4-CU fits compact industrial controllers that must combine protocol handling with deterministic peripheral coordination. Its 64 KB ISP Flash provides twice the program capacity of the compared 32 KB ATXMEGA32C4-CU, while the 4 KB boot-code section can support controlled startup and field-update logic. The four-channel event system and programmable multi-level interrupt controller are useful for coordinating inputs, timers, and communications without relying only on periodic polling. Operating from 1.6 V to 3.6 V supports low-voltage industrial designs, although the 49-VFBGA footprint requires a well-controlled assembly process and verified land pattern.
Recommandé
Low-Power Sensor Node
The ATXMEGA64D4-CU is suitable for a compact sensor node that stores local filtering logic, calibration data, and communication firmware in one MCU. Its 64 KB Flash and 4 KB SRAM provide room for buffering and protocol state, while the 2 KB EEPROM can retain configuration values between power cycles. The four-channel event system can reduce software polling when sensors, timers, and radio-control events must be coordinated at precise intervals. The 1.6 V minimum operating voltage is advantageous for battery-derived rails, although final low-power performance and wake-up behavior must be checked in the official documentation for the selected clock configuration.
Recommandé
Building Automation Controller
The ATXMEGA64D4-CU can support building-automation nodes that combine sensor inputs, scheduled outputs, local overrides, and serial communications. Its 32 MHz clock provides useful processing margin for event handling, while 64 KB Flash allows application code and protocol state to coexist more comfortably than on a 32 KB-class MCU. UART/USART, SPI, and I2C connectivity supports integration with sensors, transceivers, and display or storage peripherals. The multi-level interrupt controller is particularly useful when several communication and timing events compete for attention. The engineer must still allocate 49-VFBGA PCB area, exposed-pad thermal copper, and validated manufacturing controls.
Recommandé
Serial Communication Equipment
The ATXMEGA64D4-CU fits compact serial equipment requiring more firmware space than a basic 8-bit controller. The verified 64 KB Flash can hold protocol stacks, configuration tables, and boot logic, while 4 KB SRAM supports receive buffers and protocol state. UART/USART and SPI connectivity allow the device to bridge or supervise external modules, and the four-channel event system can coordinate data-ready events with timers and communication transfers. The ATXMEGA64D4-CU's 32 MHz operating speed is useful for protocol overhead, although baud-rate accuracy, frame timing, and peripheral clock behavior should be evaluated at the intended supply voltage.
Recommandé
Precision Timing Control
The ATXMEGA64D4-CU is applicable to compact timing-control modules where several events must be coordinated predictably. Its four-channel event system provides hardware pathways for comparing and routing events, reducing the CPU burden associated with polling multiple timing sources. The programmable multi-level interrupt controller allows incoming events to be prioritized, and the 32 MHz clock supports fast protocol and control-loop execution. This makes the device relevant to motor-adjacent controllers, acquisition modules, and deterministic sequence managers. Exact timer channels, trigger routing, and interrupt priorities must be confirmed against the official ATxmega64D4 documentation before schematic and firmware design.
Recommandé
Compact Consumer Controller
The ATXMEGA64D4-CU can serve as the central controller in a compact consumer accessory requiring a relatively rich firmware image and multiple interfaces. Its 64 KB Flash stores application and update logic, 2 KB EEPROM preserves user settings, and 4 KB SRAM supports protocol and display state. UART/USART, SPI, and I2C permit connection to sensors, storage, or an LED driver without requiring several discrete interface devices. The 49-VFBGA 5x5 mm package helps limit product footprint, but it also makes solder-joint inspection and exposed-pad thermal design more demanding than a leaded package. Firmware updates and production programming should account for the dedicated 4 KB boot-code section.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATXMEGA64D4-CU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATXMEGA64A4-CU | ATXMEGA64E5-CU | ATXMEGA32C4-CU |
|---|---|---|---|---|
| Package | 49-VFBGA (5x5 mm) | 49-VFBGA (5x5 mm) - exact ball mapping requires verification | 49-VFBGA (5x5 mm) - exact ball mapping requires verification | 49-VFBGA - package identified, but not a verified drop-in replacement |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 32 MHz | 32 MHz class | 32 MHz class | 32 MHz |
| Flash Memory | 64 KB | 64 KB class | 64 KB class | 32 KB |
Principaux différenciateurs
- Twice the Flash capacity of the compared ATXMEGA32C4-CU (vs ATXMEGA32C4-CU)
- Integrated event-driven control resources (vs ATXMEGA32C4-CU)
- Dedicated boot-code storage (vs ATXMEGA64E5-CU)
Notes de conception
Do not create the 49-VFBGA footprint from a generic BGA library. Use Microchip's current package drawing for ball pitch, ball diameter, solder-mask opening, exposed-pad dimensions, and courtyard. Place the decoupling network close to the corresponding supply balls and provide a continuous thermal path through the exposed pad. Because the supplied data does not include a verified land pattern, schematic-to-board release should wait until the official drawing and assembly requirements have been checked.
Treat the exposed pad as a thermal and electrical construction feature rather than an optional copper area. Its net assignment and connection must follow the official package documentation. Use multiple thermal-via rows if prescribed, while maintaining adequate clearance from signal and sensitive analog nets. Validate the final junction-temperature margin using the actual PCB copper area, enclosure, ambient temperature, and measured processor activity; generic BGA thermal assumptions may not represent this 5x5 mm device.
Design the supply for the verified 1.6 V to 3.6 V operating range and confirm which clock and peripheral limits apply at the selected voltage. Place bulk and high-frequency decoupling capacitors according to the manufacturer recommendation, using short ground returns and quiet supply routing for sensitive measurements. The listed 4 KB SRAM and 64 KB Flash do not determine the external memory interface requirements; verify any external memory bus separately in the official documentation.
Do not infer pin compatibility from the phrase '49-VFBGA' alone. Two devices can use the same package dimensions while assigning power, reset, programming, analog, and communications functions to different balls. Compare every target ball against the candidate datasheet, check the exposed-pad net, and review boot, fuse, clock, and peripheral differences. ATXMEGA32C4-CU is not a verified drop-in replacement because its verified Flash capacity is only 32 KB versus 64 KB.
Informations de conformité
The supplied verified sources do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for the ATXMEGA64D4-CU. No compliance status was inferred from general Microchip product information.