AT32UC3C0512C - 32-bit AVR MCU 512KB Flash 66MHz | Microchip
Référence : AT32UC3C0512C ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $13.92 | $13,92 |
| 10 | $12.45 | $124,50 |
| 100 | $10.78 | $1 078,00 |
| 500 | $9.42 | $4 710,00 |
| 1 000 | $8.1 | $8 100,00 |
AT32UC3C0512C Présentation
An MCU (microcontroller unit) is a compact, self-contained computer on a single IC that integrates a CPU core, non-volatile program memory, working RAM, and a rich set of peripherals. The AT32UC3C0512C belongs to the 32-bit MCU category within the broader hierarchy of microcontrollers, embedded processors, and finally semiconductors. It targets motor-control and industrial-automation designs where deterministic latency and high analog integration matter more than raw clock speed.
Key features include 512 KB Flash program storage, on-chip SRAM, full-speed USB 2.0 with OTG, 10/100 Ethernet MAC with MII/RMII, multiple USART (SPI/LIN mode capable), an Inter-IC Sound (I2S) controller, up to 16-bit ADC, and FlashVault code protection for IP security. A peripheral event system and 4-channel DMA offload the CPU, while an interrupt controller with autovector handling keeps latency predictable under heavy event load.
The architecture pairs the AVR32 RISC core (including DSP and SIMD-friendly instructions) with hardware dedicated to power-conversion feedback loops: high-resolution PWM, motor-control timers, and synchronized analog comparators. This combination enables field-oriented control (FOC) algorithms and tight torque/velocity loops on a single chip, eliminating the need for external DSPs.
Typical applications include industrial motor drives (BLDC, PMSM, stepper), automotive body and chassis ECUs, factory-automation PLCs, smart-grid metering, USB-to-Ethernet gateways, and embedded audio interfaces. The wide operating temperature range and FlashVault protection also make it suitable for secure connected nodes and industrial IoT edge controllers.
Designers should size external decoupling carefully (1 µF + 100 nF near each supply pin), keep analog and digital ground returns separated, and use the on-chip DMA to keep ISR latency bounded. For motor-control firmware, the Atmel AVR32 framework and ASF provide production-ready FOC and PFC reference implementations.
This page synthesizes Microchip product-page information, datasheet doc9166, distributor stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour AT32UC3C0512C — 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 AT32UC3C0512C (même facteur de forme et même empreinte) — différant par Mounting Type, Package, Program Memory (Flash), ADC, Communication Interfaces.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AT32UC3C1512C-ALUT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C2512C-ALUT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C0512C-ALZR
✅ Remplacement direct✓ En stock
$11.85 / unité
Voir la fiche technique →AT32UC3C0512C-ALUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3A0512-ALUT
✅ Remplacement direct✓ En stock
$7.62 / unité
Voir la fiche technique →AT32UC3C0512C-ALZT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C0512C Valeurs maximales et caractéristiques électriques
| Core Architecture | AVR32 UC3 32-bit RISC with DSP extensions |
| CPU Clock Speed | 66 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 64 KB to 68 KB |
| Floating Point Unit | Yes (single-precision FPU) |
| Operating Voltage | 3.0 V to 3.6 V |
| Température de fonctionnement | -40 C to +85 C (industrial); -40 C to +125 C (automotive ALZR/ALZT grade) |
| Boîtier | 144-LQFP (20 x 20 mm) |
| Type de montage | Surface Mount |
| USB | USB 2.0 Full-Speed Device + OTG Host |
| Ethernet | 10/100 MAC with MII / RMII |
| Communication Interfaces | USART (SPI/LIN mode), I2S, TWI, CAN, SPI, SSC |
| ADC | Up to 16-bit sigma-delta and 10-bit SAR ADC channels |
| Code Protection | FlashVault |
| DMA Channels | 4-channel |
| Statut RoHS | Compliant |
Guide de configuration des broches du AT32UC3C0512C 144-lqfp (20 x 20 mm)
Configuration des broches du AT32UC3C0512C (boîtier 144-lqfp (20 x 20 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 AT32UC3C0512C.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
AT32UC3C0512C convient pour 6 applications: Industrial Motor Drive (BLDC/PMSM), Automotive Body and Chassis ECU, Factory Automation PLC, USB to Ethernet Industrial Gateway, Embedded Audio Interface (USB/I2S), Smart Energy / Metering Concentrator.
Industrial Motor Drive (BLDC/PMSM)
The AT32UC3C0512C is purpose-built for industrial motor drives targeting BLDC and PMSM motors. Its 32-bit AVR32 core at 66 MHz, single-precision FPU, and DSP extensions execute field-oriented control (FOC) loops with cycle-time in microseconds. Hardware motor-control timers generate complementary PWM with dead-band insertion and synchronized ADC sampling for current sensing, eliminating external DSPs. The integrated analog comparators enable BEMF zero-cross detection for sensorless trapezoidal control. Per Microchip doc9166, the UC3 C family provides more dedicated PWM channels than the UC3 A family, directly suited to three-phase inverter topologies used in 24 V to 48 V industrial servo drives.
Recommandé
Automotive Body and Chassis ECU
The AT32UC3C0512C automotive variant (suffix ALZR/ALZT) operates from -40 C to +125 C and integrates CAN, LIN-capable USARTs, and high-resolution timers needed for body and chassis ECUs. Its 512 KB Flash supports AUTOSAR-style application stacks plus bootloader, and FlashVault code protection secures OEM IP against unauthorized firmware readout - critical for tier-1 suppliers. Hardware PWM drives LED matrix lighting, HVAC flaps, and seat-position motors without external timer ICs. As of 2026-10-06, the ALZR variant is widely stocked at Mouser and DigiKey for low-volume automotive programs, again establishing it as the first true drop-in for new automotive designs.
Recommandé
Factory Automation PLC
For factory-automation PLC modules, the AT32UC3C0512C provides 16-bit sigma-delta and 10-bit SAR ADCs for analog sensor conditioning, multi-channel USARTs for sensor-bus expansion, and CAN interfaces for industrial fieldbus. The peripheral event system and 4-channel DMA keep deterministic latency even when many sensors trigger interrupts concurrently. Its wide operating temperature range and 144-LQFP package with 0.5 mm pitch enable compact DIN-4 module form factors. Per Microchip doc9166, the FlashVault feature also enables secure OTA firmware updates in Industry 4.0 deployments where IP leakage is a concern.
Recommandé
USB to Ethernet Industrial Gateway
The AT32UC3C0512C uniquely combines Full-Speed USB 2.0 (Device + OTG Host) and 10/100 Ethernet MAC with MII/RMII in a single chip, removing the need for companion bridges. Engineers building USB-to-Ethernet gateways for legacy industrial equipment, point-of-sale terminals, or networked printers benefit from this integration. The 66 MHz AVR32 core runs lightweight TCP/IP stacks (lwIP, uIP) with headroom for application protocols, and 512 KB Flash stores both stack and application code. The integrated DMA offloads packet handling, keeping CPU utilization low under line-rate traffic.
Recommandé
Embedded Audio Interface (USB/I2S)
For USB audio interfaces and digital audio peripherals, the AT32UC3C0512C offers Full-Speed USB 2.0 Device plus a dedicated Inter-IC Sound (I2S) controller compliant with the I2S bus specification. Per doc9166, the I2S controller is 5-bit wide, bidirectional, and synchronous, supporting off-chip DACs and ADCs at standard 44.1 kHz to 192 kHz sample rates. The hardware DSP extensions accelerate FIR/IIR filter coefficients for headphone crossovers. Combined with the FPU, this is again a single-chip solution for USB headsets, microphones, and prosumer audio interfaces.
Recommandé
Smart Energy / Metering Concentrator
The AT32UC3C0512C suits smart-meter data concentrators and energy-monitoring nodes thanks to its 16-bit sigma-delta ADC for accurate voltage and current measurement, integrated Ethernet MAC for backhaul, and multiple USARTs for local metrology buses (M-Bus, Modbus RTU). FlashVault protects metering firmware from tampering, a regulatory concern in many jurisdictions. Per Microchip doc9166, the part's deterministic interrupt response and DMA support guarantee that simultaneous meter reads do not introduce measurement-phase errors. This combination makes the AT32UC3C0512C a strong fit for IEC 62056-compliant data concentrators.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AT32UC3C0512C — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AT32UC3C1512C-ALUT | AT32UC3C2512C-ALUT | AT32UC3C0512C-ALZR | AT32UC3C0512C-ALUR | AT32UC3A0512-ALUT | AT32UC3C0512C-ALZT |
|---|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | AVR32 UC3 C, 32-bit | AVR32 UC3 C, 32-bit | AVR32 UC3 C, 32-bit | AVR32 UC3 C, 32-bit | AVR32 UC3 C, 32-bit | AVR32 UC3 A, 32-bit | AVR32 UC3 C, 32-bit |
| CPU Clock | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 64 to 68 KB | 64 to 68 KB | 64 to 68 KB | 64 to 68 KB | 64 to 68 KB | 64 to 68 KB | 64 to 68 KB |
| Automotive Grade (-40 to +125 C) | No (industrial -40 to +85 C) | No (industrial) | No (industrial) | Yes (AEC-Q100) | No (industrial) | No (industrial) | Yes (AEC-Q100) |
| Motor-Control Timers | Yes (UC3 C family) | Yes (UC3 C family) | Yes (UC3 C family) | Yes (UC3 C family) | Yes (UC3 C family) | No (UC3 A family) | Yes (UC3 C family) |
Principaux différenciateurs
- Integrated motor-control timer block with hardware PWM (vs AT32UC3A0512-ALUT)
- Automotive-grade temperature variant available in same 144-LQFP (vs AT32UC3C0512C-ALZR)
- Combined USB 2.0 + 10/100 Ethernet MAC integration (vs AT32UC3C1512C-ALUT)
Notes de conception
The AT32UC3C0512C requires a clean 3.3 V supply within 3.0 V to 3.6 V. Per doc9166, place a 10 uF bulk capacitor near the board power entry, then 100 nF ceramic decoupling at every VDD/VDDIO pin pair, with the loop area minimized to reduce switching noise coupling into the ADC references. Avoid routing high-current motor traces near the analog supply pins; route the analog ground star-point back to the regulator ground.
Estimated: at maximum 66 MHz CPU load and 3.6 V supply, the internal core current is approximately 50 mA (0.18 W dissipation), well within the 144-LQFP thermal envelope. However, USB and Ethernet PHYs connected via MII/RMII can pull an additional 100-150 mA through the MCU's I/O rails. Use a copper pour of at least 1 square inch under the LQFP exposed lead frame to keep junction temperature rise below 30 C at 25 C ambient.
Route the 50 MHz external oscillator traces as short as possible, with a ground guard on each side. The USB D+/D- pair requires 90 ohm differential impedance and a 22-ohm series resistor at each pin per USB 2.0 signal-quality requirements. Place the Ethernet RMII/MII signals on the inner layers with reference ground planes and series-termination resistors at the MCU side to meet timing budgets.
Do not assume UC3 C and UC3 A peripherals are drop-in compatible at the register level - timer-counter layouts and PWM channel counts differ. Confirm peripheral interrupt vector assignments from doc9166 before reusing firmware between AT32UC3C0512C and AT32UC3A0512-ALUT. Also, enable the FlashVault security bit only after confirming the bootloader can still perform secure firmware updates, otherwise the part becomes one-time programmable.
Informations de conformité
RoHS compliant per Microchip product page. ALZR/ALZT suffix parts are AEC-Q100 qualified for automotive; standard ALUT/ALUR suffix is not. Lead-free confirmed per Microchip package information.
