ATXMEGA32D3-AU - 32MHz 32KB Flash MCU | Microchip Technology
Référence : ATXMEGA32D3-AU ✓ ActifATXMEGA32D3-AU Présentation
A microcontroller is a programmable system-on-chip that integrates a processor core, nonvolatile program memory, data memory, peripherals, and I/O into one device. The ATXMEGA32D3 belongs to the XMEGA family, which extends the 8-bit AVR architecture with 16-bit peripherals, a four-channel event system, a programmable multi-level interrupt controller, and five flexible 16-bit timer/counters. It is positioned between basic 8-bit controllers and larger 32-bit application processors.
The verified device specifications include 32 KB of ISP flash organized as 16K x 16, including a 4 KB boot-code section with read-while-write capability. It also provides 2 KB EEPROM and 4 KB SRAM. The peripheral set includes a 16-bit real-time counter, PWM-capable timers, and a four-channel event system, making the device suitable for embedded control, mixed-signal monitoring, and communication-intensive designs.
The ATXMEGA32D3 uses an 8/16-bit AVR RISC processor and reaches a maximum clock frequency of 32 MHz. Its operating range of 1.6 V to 3.6 V supports low-voltage designs, while the industrial temperature rating supports equipment operating from -40°C to +85°C. The 64-TQFP package measures 14 x 14 mm and is supplied in trays of 90 units according to the verified Microchip listing.
Typical applications include industrial automation and control, sensor acquisition, motor and actuator control, low-power embedded products, communications equipment, and consumer accessories. Engineers should confirm clock, peripheral, programming, and decoupling requirements against the complete manufacturer documentation before releasing a PCB.
A key design consideration is that the 32 KB flash capacity can constrain application size, while the XMEGA D3 peripheral set can reduce the need for external interface devices. The 64-pin TQFP footprint is relatively easy to route and inspect, although fine-pitch soldering and careful power-supply decoupling still require attention.
This page consolidates verified distributor inventory, manufacturer specifications, package details, and practical engineering context. It also distinguishes direct pin-compatible choices from merely comparable devices so sourcing decisions are based on an actual footprint and parameter review.
Alternatives de remplacement direct pour ATXMEGA32D3-AU — 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 ATXMEGA32D3-AU (même facteur de forme et même empreinte) — différant par Package.
ATXMEGA32D3-AUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA32D3-AN
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA384D3-AUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA64A4-AU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA64A4U-AU
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →ATXMEGA16D4-AN
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA32D3-AU Valeurs maximales et caractéristiques électriques
| Product Type | 8/16-bit AVR RISC microcontroller |
| Series | AVR XMEGA D3 |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 32 KB (16K x 16) |
| Boot Code Section | 4 KB |
| Read-While-Write | Supported |
| EEPROM Memory | 2 KB |
| SRAM | 4 KB |
| General-Purpose I/O Lines | 50 |
| Supply Voltage Range | 1.6 V to 3.6 V |
| Plage de température de fonctionnement | -40°C to +85°C |
| Boîtier | 64-TQFP (14 x 14 mm) |
| Type de montage | Surface mount |
| Packing Media | Tray |
| Standard Tray Quantity | 90 units |
| Event System | 4 channels |
| Timer/Counters | 5 flexible 16-bit timer/counters |
| Real-Time Counter | 16-bit |
| Country of Origin | Thailand |
Guide de configuration des broches du ATXMEGA32D3-AU 64-tqfp (14 x 14 mm)
Configuration des broches du ATXMEGA32D3-AU (boîtier 64-tqfp (14 x 14 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 ATXMEGA32D3-AU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATXMEGA32D3-AU convient pour 6 applications: Industrial Automation Controller, Sensor Acquisition and Signal Conditioning, Motor and Actuator Control, Communication Gateway, Low-Power Embedded Product, Programmable Logic and Timing Module.
Industrial Automation Controller
The ATXMEGA32D3-AU fits industrial automation modules requiring deterministic timing, ample control I/O, and operation from -40°C to +85°C. Its 32 MHz AVR core executes control logic, while the four-channel event system and five flexible 16-bit timer/counters support motor timing, pulse measurement, and synchronized actuator control. With 50 general-purpose I/O lines, the device can connect sensors, discrete inputs, and outputs without immediately adding an I/O expander. The 32 KB flash and 4 KB SRAM are sufficient for compact protocols and modest algorithms, but production firmware should reserve memory for diagnostics, updates, and interrupt overhead. Use the 1.6 V to 3.6 V operating range to select compatible field-interface and communication components.
Recommandé
Sensor Acquisition and Signal Conditioning
The ATXMEGA32D3-AU is appropriate for compact sensor-acquisition nodes that need periodic sampling, local filtering, and flexible digital interfaces. Its four-channel event system can connect timer events directly to peripheral actions, while the 16-bit real-time counter and PWM-capable timers support precise measurement windows and excitation timing. The device's 2 KB EEPROM can retain calibration or configuration values, and its 32 KB flash can hold application code and calibration logic. The 1.6 V minimum supply supports low-voltage sensor systems, although the engineer must ensure that every external interface shares a compatible logic level. For analog measurements, add a suitable external ADC when the application's accuracy exceeds the MCU's available resources.
Recommandé
Motor and Actuator Control
The ATXMEGA32D3-AU can serve as the timing and control brain for small motors, solenoids, and stepper actuators because its five 16-bit timer/counters provide dedicated compare and PWM resources. The four-channel event system can reduce CPU intervention by linking timer events to hardware actions, which is useful for repeatable pulse generation and position-related timing. Its 50 I/O lines leave room for limit switches, encoders, status indicators, and communication transceivers. The 32 MHz operating speed provides useful headroom for closed-loop calculations and fault handling, but current ratings must remain external to the MCU. Use gate drivers and protection components sized for the load rather than driving motor windings directly from GPIO pins.
Recommandé
Communication Gateway
The ATXMEGA32D3-AU is suitable for small protocol-conversion and communications gateways where the XMEGA event system and timer resources complement serial peripherals. At 32 MHz with 4 KB SRAM, it can manage framing, buffering, status reporting, and multiple interface tasks in a compact embedded design. The 64-TQFP package exposes enough pins for several UART, SPI, or I2C links while preserving the option to add a transceiver. Firmware memory should be measured carefully because 32 KB is modest for stack-heavy gateways, protocol libraries, security features, and dual-bank update logic. If the product requires USB, Ethernet, or substantially larger application storage, evaluate a higher-memory MCU family instead of assuming firmware can be relocated unchanged.
Recommandé
Low-Power Embedded Product
The ATXMEGA32D3-AU can support compact embedded products that balance processing capability with a 1.6 V to 3.6 V supply range. Its low-power features and event system can help offload routine timing tasks, but final battery life depends on the selected sleep mode, peripheral activity, and firmware behavior, which were not quantified in the supplied snippets. The 4 KB SRAM allows moderate working buffers, while 2 KB EEPROM provides limited nonvolatile parameter storage. Designers should avoid placing frequently updated logs in EEPROM unless endurance is checked, and should prefer flash or external storage for larger persistent data. A low-voltage regulator and carefully selected decoupling are required to ensure reliable operation across temperature and battery conditions.
Recommandé
Programmable Logic and Timing Module
The ATXMEGA32D3-AU is useful for compact programmable timing modules where outputs must follow deterministic events rather than software polling. Its four-channel event system can route timer, comparator, or I/O events among peripherals, while the 16-bit real-time counter provides a dedicated time base and the PWM timers generate precise outputs. With 50 GPIO lines, the controller can expose multiple channels for pulse trains, programmable delays, or industrial stimulus generation. The device should be clocked from a stable source and its timer prescaler configuration must account for input tolerance, jitter, and temperature. Because the exact timer channel map is not present in the supplied snippets, designers should consult the complete pin and peripheral documentation before assigning every output.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATXMEGA32D3-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATXMEGA32D3-AUR | ATXMEGA32D3-AN | ATXMEGA384D3-AUR | ATXMEGA64A4-AU |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (14 x 14 mm) | 64-TQFP (14 x 14 mm) | 64-TQFP (14 x 14 mm) | 64-TQFP (14 x 14 mm) | 64-TQFP (14 x 14 mm) |
| Packing Media | Tray | Tape and reel ordering variant | Tray | Tape and reel ordering variant | Tray |
Principaux différenciateurs
- Higher XMEGA D3 flash capacity than the 16 KB-class comparison family candidate (vs ATXMEGA16D4-AN)
- Compact 50-I/O controller in a 14 x 14 mm package (vs ATXMEGA64A4-AU)
- Dedicated event-system and timing resources (vs ATXMEGA384D3-AUR)
Notes de conception
Design the supply around the verified 1.6 V to 3.6 V operating range and every attached peripheral's voltage requirements. Place the MCU's required local decoupling capacitors at the supply and ground pins using the layout recommended in the complete datasheet, and provide bulk capacitance near the regulator. Verify startup behavior, brownout limits, and I/O states during reset because partially powered devices can drive external hardware unpredictably.
Keep the 64-TQFP footprint compatible with the verified 14 x 14 mm package and route critical clocks and communication lines away from noisy switching nodes. Maintain a continuous ground reference under the device where practical, minimize vias beneath sensitive pins, and place input filtering and protection close to their connectors. Fine-pitch assembly requires inspection of solder bridges and adequate solder-paste volume.
Do not assume that two 64-TQFP XMEGA devices are interchangeable because they share a footprint. Compare the complete pin list, alternate functions, power pins, clock pins, programming signals, ADC channels, timers, and package drawings. Firmware, fuse settings, boot configuration, and peripheral assignments must also be revalidated when changing from ATXMEGA32D3-AU to a different XMEGA variant.
Informations de conformité
The verified Microchip listing identifies the device as green, but the supplied excerpts do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance claim is inferred.
