ATXMEGA64A1-CU - 32MHz 64KB AVR MCU | Microchip Technology
Référence : ATXMEGA64A1-CU ✗ Fin de vieATXMEGA64A1-CU Présentation
An 8/16-bit AVR microcontroller is a compact embedded-processing device that combines a processor core, nonvolatile program memory, volatile working memory, communication peripherals and mixed-signal or timing functions on one integrated circuit. In the product hierarchy, the ATXMEGA64A1-CU is an MCU, part of the broader integrated-circuit and embedded-processing categories. Its XMEGA architecture supports 8-bit and 16-bit instruction execution, making it useful where deterministic control, moderate arithmetic performance and low system complexity are more important than the application processor performance of a high-end Cortex-M device.
The MCU's 32 MHz operating frequency is its principal performance figure, while its 64 KB Flash memory provides room for application code and boot code. The manufacturer product page also identifies a 4 KB boot-code section, 4 KB SRAM and 2 KB EEPROM. Brown-out detection, power-on reset and the watchdog timer support reliable startup and continued operation. Four-channel DMA reduces peripheral data-transfer overhead, while the PWM and external bus interface extend its usefulness for motor control, industrial automation and connected embedded equipment.
The 1.6 V to 3.6 V operating range permits use with common low-voltage digital rails. The 100-CBGA package provides 100 ball-grid connections and a compact 9 mm by 9 mm footprint, but its fine-pitch ball array requires a PCB with high-quality routing and assembly capability. Unlike a simple microcontroller package, a CBGA also demands careful power-plane design, via-in-pad or equivalent escape-routing strategies, and assembly processes capable of handling the package's fine pitch. The manufacturer lists this family as not recommended for new designs, so lifecycle planning is essential.
Typical applications include industrial automation controllers, compact motor-control systems, sensor-conditioning hubs, communication modules and low-power embedded products. The combination of DMA, PWM, 64 KB Flash and a 32 MHz clock is especially useful in cost-sensitive systems that need several concurrent control functions without using a higher-complexity processor. Because the part is not recommended for new designs, engineers should evaluate ATxmega64A1U before committing a new PCB to this package.
The primary design consideration is package and lifecycle risk. ATXMEGA64A1-CU can be maintained in an existing 100-CBGA design, but new products should verify recommended-device migration, pin compatibility, memory-map differences, toolchain support and long-term procurement before committing. The verified distributor data does not provide a complete ball assignment or exposed-pad connection, so the package drawing must be checked against the current Microchip documentation before PCB release.
This page consolidates the verified manufacturer and distributor specifications, lifecycle guidance, pricing, package constraints and same-family migration information. It also distinguishes the legacy ATXMEGA64A1-CU from the manufacturer-recommended ATxmega64A1U path and identifies which replacement decisions still require pin-level validation rather than relying on broad functional similarity.
Alternatives de remplacement direct pour ATXMEGA64A1-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 ATXMEGA64A1-CU (même facteur de forme et même empreinte) — différant par Boot Code Section, DMA Channels, Flash Program Memory, Mounting Type, Package.
ATXMEGA64A1U-CU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA128A1-CU
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →ATXMEGA64A1-CU Valeurs maximales et caractéristiques électriques
| Product Type | 8/16-bit AVR XMEGA A1 microcontroller |
| Fréquence d'horloge maximale | 32 MHz |
| Flash Program Memory | 64 KB (32K x 16) |
| Boot Code Section | 4 KB |
| SRAM | 4 KB |
| EEPROM | 2 KB |
| Tension d'alimentation de fonctionnement | 1.6 V to 3.6 V |
| I/O Port Count | 34 ports |
| DMA Channels | 4 channels |
| Boîtier | 100-CBGA (9 mm x 9 mm) |
| Type de montage | Surface mount |
| External Bus Interface | Yes |
| Brown-Out Detection and Reset | Yes |
| Power-On Reset | Yes |
| Watchdog Timer | Yes |
| Self-Programmable Flash | Yes |
Guide de configuration des broches du ATXMEGA64A1-CU 100-cbga (9 mm x 9 mm)
Configuration des broches du ATXMEGA64A1-CU (boîtier 100-cbga (9 mm x 9 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 ATXMEGA64A1-CU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATXMEGA64A1-CU convient pour 6 applications: Industrial Automation Controller, Motor and PWM Control, Communication and Sensor Hub, Low-Power Embedded Instrument, Secure Network Interface, Board-Level Test and Control.
Industrial Automation Controller
The ATXMEGA64A1-CU fits compact industrial automation controllers that coordinate sensors, digital I/O and communication peripherals at 32 MHz. Its 64 KB Flash provides room for application logic and a separate 4 KB boot-code section, while 4 KB SRAM and 2 KB EEPROM support local variables and retained parameters. Four-channel DMA can move peripheral data with less processor intervention. The 100-CBGA package minimizes board area, but a new design should use the manufacturer-preferred ATxmega64A1U because ATxmega64A1 is not recommended for new designs.
Recommandé
Motor and PWM Control
The ATXMEGA64A1-CU is suitable for compact motor-control and PWM-based actuator systems because it combines a 32 MHz AVR core with PWM, DMA and 34 I/O ports. DMA can transfer timer or peripheral data without loading every operation onto the CPU, leaving more execution time for control algorithms and supervisory logic. A 1.6 V to 3.6 V operating range supports low-voltage embedded systems. Engineers must review the exact PWM channels, timer routing and pin multiplexing in the manufacturer documentation and account for the lifecycle status of this package.
Recommandé
Communication and Sensor Hub
The ATXMEGA64A1-CU can serve as a local communication and sensor hub when a product needs a 32 MHz control core, 34 I/O ports and moderate local memory. The external bus interface enables connection to compatible external bus devices, while 4 KB SRAM supports protocol buffers and DMA reduces transfer overhead. Its 1.6 V to 3.6 V supply range fits common low-voltage embedded rails. Package escape routing and antenna or transceiver isolation must be planned together, particularly if the CBGA sits near sensitive RF circuitry.
Recommandé
Low-Power Embedded Instrument
The ATXMEGA64A1-CU is applicable to compact instruments that require deterministic control, local storage and low-voltage operation. Its 64 KB self-programming Flash, 4 KB SRAM and 2 KB EEPROM allow firmware, working state and retained calibration values to coexist on one MCU. Brown-out detection, power-on reset and the watchdog timer assist reliable startup and supervision. In battery-powered equipment, actual sleep and active-current figures must be verified because the supplied evidence does not provide those detailed power values.
Recommandé
Secure Network Interface
The ATXMEGA64A1-CU can support an embedded network interface where a compact 100-CBGA package, external bus capability and DMA are useful. The 32 MHz core handles protocol tasks and local control, while four-channel DMA reduces peripheral-copy overhead and 2 KB EEPROM can retain configuration data. Isolation and level translation should be selected according to the external interface, with isolated communication devices such as SI8241CB-D-IS1R and TCAN334DR serving as possible interface components. The lifecycle status remains the principal concern for long-life network products.
Recommandé
Board-Level Test and Control
The ATXMEGA64A1-CU can be used in board-level test, fixture control and automated equipment where a 32 MHz MCU must coordinate multiple I/O lines and perform timing-sensitive sequences. Sixty-four kilobytes of Flash is useful for test firmware, diagnostics and boot routines, while 4 KB SRAM accommodates temporary measurements and protocol frames. The device's PWM, DMA and watchdog functions support repeatability and supervision. For new test-equipment platforms, engineers should first confirm that ATxmega64A1U satisfies the required pin map and test-fixture timing.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATXMEGA64A1-CU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATXMEGA64A1U-CU | ATXMEGA128A1-CU |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-CBGA (9 mm x 9 mm) | 100-CBGA (9 mm x 9 mm) - manufacturer documentation confirmation required | 100-CBGA (9 mm x 9 mm) - same package class |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 64 KB (32K x 16) | 64 KB | 128 KB |
| Lifecycle Guidance | ATxmega64A1 family not recommended for new designs | ATxmega64A1U identified by Microchip as the preferred replacement path | Obsolete lifecycle code reported by the comparison source |
Principaux différenciateurs
- Manufacturer identifies a preferred successor family (vs ATXMEGA64A1U-CU)
- Same stated headline memory configuration (vs ATXMEGA64A1U-CU)
- Current family versus an obsolete comparison candidate (vs ATXMEGA128A1-CU)
- Lower Flash capacity for cost- and memory-sensitive designs (vs ATXMEGA128A1-CU)
Notes de conception
Do not release the 100-CBGA land pattern from distributor package dimensions alone. Obtain the current Microchip package drawing and verify ball locations, ball assignments, power balls and exposed-thermal or ground connections. For a 9 mm by 9 mm fine-pitch CBGA, confirm the assembly process, solder-paste stencil design, via-in-pad or filled-microvia strategy and inspection requirements with the PCB fabricator and assembler before release.
Design the 1.6 V to 3.6 V supply for the MCU and all connected peripherals as one noise-sensitive power domain. Place local high-frequency bypass capacitors next to the relevant power balls and provide a low-impedance ground reference. The verified evidence identifies brown-out detection and reset but does not provide detailed threshold, current or decoupling values; use the manufacturer datasheet for capacitor selection, startup behavior and power-supply sequencing.
Do not treat ATXMEGA64A1-CU as a general substitution for ATxmega64A1U merely because both families have a 100-ball package classification. Verify the exact ball map, peripheral multiplexing, boot section, programming interface and toolchain compatibility. The ATxmega64A1 family is not recommended for new designs, so a new product should evaluate ATxmega64A1U before layout release and should not rely on an unverified cross-brand replacement.
Separate sensitive analog or communication paths from fast digital return currents on the compact CBGA layout. Maintain a continuous ground reference beneath the device where the package design permits, route escape traces according to the manufacturer's fan-out guidance and control return paths through nearby ground vias. When the MCU drives external-bus or communication circuitry, validate crosstalk and supply-noise margins with the complete system because the supplied data does not provide detailed timing or EMI limits.
Estimate package dissipation from the actual operating mode and the voltage difference between I/O and supply rails rather than using the 32 MHz clock frequency alone. The supplied evidence provides no thermal-resistance, active-current or sleep-current figures, so a junction-temperature calculation would require unsupported assumptions. Obtain the current-consumption and thermal data from Microchip, then validate the final board in the highest-frequency, highest-bus-loading operating condition.
Informations de conformité
The supplied target-specific results do not explicitly state RoHS, REACH, lead-free, halogen-free or conflict-minerals status. AEC-Q100 is not applicable because this is an industrial embedded microcontroller rather than an automotive-qualified device.
