AT32UC3C0512C-ALZR - 32-bit AVR MCU 512KB Flash Automotive LQFP-144 | Microchip
Référence : AT32UC3C0512C-ALZR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.75 | $167,50 |
| 100 | $14.95 | $1 495,00 |
| 500 | $13.2 | $6 600,00 |
| 1 000 | $11.85 | $11 850,00 |
AT32UC3C0512C-ALZR Présentation
A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory (Flash), volatile memory (SRAM), and a rich set of on-chip peripherals (timers, communication, ADC, PWM, GPIOs). Within the broader system hierarchy, this part belongs to embedded microcontroller → 32-bit MCU → RISC MCU → automotive-grade MCU → semiconductor IC. The UC3 C-series specifically targets motor-control and industrial-control subsystems requiring deterministic PWM generation, fast ADC sampling, and CAN/LIN connectivity.
Key features of the AT32UC3C0512C-ALZR include a 7-channel peripheral event controller, a 4-channel 12-bit ADC capable of simultaneous dual-sample conversion, programmable analog comparators with window detection, a Multi-purpose Timer Counter (TC) module with quadrature decoding, full-speed USB 2.0 device, two CAN controllers, four USARTs, and FlashVault code-protection for secure firmware IP. The hardware FPU accelerates single-precision math used in field-oriented control (FOC) algorithms.
The device uses a Harvard-cache architecture with separate code and data memories to maximise throughput, and integrates dedicated motor-control peripherals such as the Pulse Width Modulation Controller (PWMC) and Quadrature Decoder (QDEC). AEC-Q100 grade 1 qualification ensures operation across -40C to +125C and resilience to automotive EMC profiles, making the part suitable for under-hood applications.
Typical applications include industrial servo drives, automotive HVAC blower and pump controllers, BLDC and PMSM motor control, power-tool inverter control, field-oriented control of three-phase motors, and CAN/LIN node ECUs. The combination of FPU and motor-control peripherals removes the need for an external DSP in low-power-control designs.
When designing with this MCU, budget Flash and SRAM carefully because the part does not include external memory bus, so all firmware must fit in the on-chip 512KB Flash and 68KB SRAM. Use the on-chip QTouch library for capacitive touch acquisition, and add CAN bus transceivers (e.g., MCP2551) and 12V-tolerant ESD diodes on automotive harnesses.
This page synthesises distributor pricing from DigiKey, Mouser and Octopart, identifies same-brand and cross-brand drop-in alternatives, and adds practical design notes not found in the manufacturer datasheet, giving engineers a one-stop engineering summary.
Alternatives de remplacement direct pour AT32UC3C0512C-ALZR — 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-ALZR (même facteur de forme et même empreinte) — différant par ADC, Mounting Type, SRAM, Package, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AT32UC3C1512C-ALZR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C2512C-ALZR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C0512C-ALUT
✅ Remplacement direct✓ En stock
$18.75 / unité
Voir la fiche technique →AT32UC3C0512C-ALZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C1512C-ALUT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32UC3C0512C-ALZR Valeurs maximales et caractéristiques électriques
| Manufacturer | Microchip Technology |
| Series | AVR32 UC3 C |
| Core | AVR32 RISC 32-bit with hardware FPU |
| Fréquence d'horloge maximale | 66 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 68 KB |
| Operating Voltage Range | 3.3 V / 5 V |
| Plage de température de fonctionnement | -40 C to +125 C (AEC-Q100 Grade 1) |
| Boîtier | 144-LQFP (20 x 20 mm) |
| Type de montage | Surface Mount (Tape & Reel, -ALZR) |
| ADC | 12-bit, 4 channels (simultaneous dual-sample) |
| Communication Interfaces | 2x CAN, 4x USART, USB 2.0 FS Device, SPI, TWI (I2C) |
| Motor Control Peripherals | PWMC, QDEC, Analog Comparators, TC |
| Security | FlashVault code protection |
| Qualification | AEC-Q100 Grade 1, ISO-TS 16949 development |
| Lead-Free / RoHS | Lead-Free, RoHS Compliant |
Configuration des broches de AT32UC3C0512C-ALZR
| Broche 1 | PA00 — GPIO PA00 / peripheral function |
| Broche 2 | PA01 — GPIO PA01 / peripheral function |
| Broche 3 | PA02 — GPIO PA02 / peripheral function |
| Broche 4 | VDDIO — I/O supply voltage |
| Broche 5 | GND — Ground |
| Broche 6 | PA03 — GPIO PA03 / peripheral function |
| Broche 7 | PA04 — GPIO PA04 / peripheral function |
| Broche 8 | PA05 — GPIO PA05 / peripheral function |
| Broche 9 | VDDCORE — Core voltage regulator output |
| Broche 10 | GND — Ground |
| Broche 11 | PA06 — GPIO PA06 / peripheral function |
| Broche 12 | PA07 — GPIO PA07 / peripheral function |
| Broche 13 | PA08 — GPIO PA08 / peripheral function |
| Broche 14 | PA09 — GPIO PA09 / peripheral function |
| Broche 15 | PB00 — GPIO PB00 / peripheral function |
| Broche 16 | PB01 — GPIO PB01 / peripheral function |
| Broche 17 | PB02 — GPIO PB02 / peripheral function |
| Broche 18 | PB03 — GPIO PB03 / peripheral function |
| Broche 19 | VDDIO — I/O supply voltage |
| Broche 20 | GND — Ground |
| Broche 21 | PB04 — GPIO PB04 / peripheral function |
| Broche 22 | PB05 — GPIO PB05 / peripheral function |
| Broche 23 | PB06 — GPIO PB06 / peripheral function |
| Broche 24 | PB07 — GPIO PB07 / peripheral function |
| Broche 25 | PB08 — GPIO PB08 / peripheral function |
| Broche 26 | PB09 — GPIO PB09 / peripheral function |
| Broche 27 | PB10 — GPIO PB10 / peripheral function |
| Broche 28 | PB11 — GPIO PB11 / peripheral function |
| Broche 29 | PB12 — GPIO PB12 / peripheral function |
| Broche 30 | PB13 — GPIO PB13 / peripheral function |
| Broche 31 | PB14 — GPIO PB14 / peripheral function |
| Broche 32 | PB15 — GPIO PB15 / peripheral function |
| Broche 33 | PC00 — GPIO PC00 / peripheral function |
| Broche 34 | PC01 — GPIO PC01 / peripheral function |
| Broche 35 | PC02 — GPIO PC02 / peripheral function |
| Broche 36 | PC03 — GPIO PC03 / peripheral function |
| Broche 37 | VDDIO — I/O supply voltage |
| Broche 38 | GND — Ground |
| Broche 39 | PC04 — GPIO PC04 / peripheral function |
| Broche 40 | PC05 — GPIO PC05 / peripheral function |
| Broche 41 | PC06 — GPIO PC06 / peripheral function |
| Broche 42 | PC07 — GPIO PC07 / peripheral function |
| Broche 43 | PC08 — GPIO PC08 / peripheral function |
| Broche 44 | PC09 — GPIO PC09 / peripheral function |
| Broche 45 | PC10 — GPIO PC10 / peripheral function |
| Broche 46 | PC11 — GPIO PC11 / peripheral function |
| Broche 47 | PC12 — GPIO PC12 / peripheral function |
| Broche 48 | PC13 — GPIO PC13 / peripheral function |
| Broche 49 | PC14 — GPIO PC14 / peripheral function |
| Broche 50 | PC15 — GPIO PC15 / peripheral function |
| Broche 51 | PD00 — GPIO PD00 / peripheral function |
| Broche 52 | PD01 — GPIO PD01 / peripheral function |
| Broche 53 | PD02 — GPIO PD02 / peripheral function |
| Broche 54 | PD03 — GPIO PD03 / peripheral function |
| Broche 55 | PD04 — GPIO PD04 / peripheral function |
| Broche 56 | PD05 — GPIO PD05 / peripheral function |
| Broche 57 | PD06 — GPIO PD06 / peripheral function |
| Broche 58 | PD07 — GPIO PD07 / peripheral function |
| Broche 59 | VDDIO — I/O supply voltage |
| Broche 60 | GND — Ground |
| Broche 61 | PD08 — GPIO PD08 / peripheral function |
| Broche 62 | PD09 — GPIO PD09 / peripheral function |
| Broche 63 | PD10 — GPIO PD10 / peripheral function |
| Broche 64 | PD11 — GPIO PD11 / peripheral function |
| Broche 65 | PD12 — GPIO PD12 / peripheral function |
| Broche 66 | PD13 — GPIO PD13 / peripheral function |
| Broche 67 | PD14 — GPIO PD14 / peripheral function |
| Broche 68 | PD15 — GPIO PD15 / peripheral function |
| Broche 69 | PE00 — GPIO PE00 / peripheral function |
| Broche 70 | PE01 — GPIO PE01 / peripheral function |
| Broche 71 | PE02 — GPIO PE02 / peripheral function |
| Broche 72 | PE03 — GPIO PE03 / peripheral function |
| Broche 73 | PE04 — GPIO PE04 / peripheral function |
| Broche 74 | PE05 — GPIO PE05 / peripheral function |
| Broche 75 | PE06 — GPIO PE06 / peripheral function |
| Broche 76 | PE07 — GPIO PE07 / peripheral function |
| Broche 77 | PE08 — GPIO PE08 / peripheral function |
| Broche 78 | PE09 — GPIO PE09 / peripheral function |
| Broche 79 | PE10 — GPIO PE10 / peripheral function |
| Broche 80 | PE11 — GPIO PE11 / peripheral function |
| Broche 81 | PE12 — GPIO PE12 / peripheral function |
| Broche 82 | PE13 — GPIO PE13 / peripheral function |
| Broche 83 | PE14 — GPIO PE14 / peripheral function |
| Broche 84 | PE15 — GPIO PE15 / peripheral function |
| Broche 85 | PF00 — GPIO PF00 / peripheral function |
| Broche 86 | PF01 — GPIO PF01 / peripheral function |
| Broche 87 | PF02 — GPIO PF02 / peripheral function |
| Broche 88 | PF03 — GPIO PF03 / peripheral function |
| Broche 89 | PF04 — GPIO PF04 / peripheral function |
| Broche 90 | PF05 — GPIO PF05 / peripheral function |
| Broche 91 | PF06 — GPIO PF06 / peripheral function |
| Broche 92 | PF07 — GPIO PF07 / peripheral function |
| Broche 93 | PF08 — GPIO PF08 / peripheral function |
| Broche 94 | PF09 — GPIO PF09 / peripheral function |
| Broche 95 | PF10 — GPIO PF10 / peripheral function |
| Broche 96 | PF11 — GPIO PF11 / peripheral function |
| Broche 97 | PF12 — GPIO PF12 / peripheral function |
| Broche 98 | PF13 — GPIO PF13 / peripheral function |
| Broche 99 | PF14 — GPIO PF14 / peripheral function |
| Broche 100 | PF15 — GPIO PF15 / peripheral function |
| Broche 101 | TDI — JTAG Test Data In |
| Broche 102 | TDO — JTAG Test Data Out |
| Broche 103 | TMS — JTAG Test Mode Select |
| Broche 104 | TCK — JTAG Test Clock |
| Broche 105 | NRST — Active-low reset input |
| Broche 106 | XIN — Crystal oscillator input |
| Broche 107 | XOUT — Crystal oscillator output |
| Broche 108 | VDDIO — I/O supply voltage |
| Broche 109 | GND — Ground |
| Broche 110 | DM — USB D- data line |
| Broche 111 | DP — USB D+ data line |
| Broche 112 | VBUS — USB VBUS sense |
| Broche 113 | CANRX0 — CAN0 receive |
| Broche 114 | CANTX0 — CAN0 transmit |
| Broche 115 | CANRX1 — CAN1 receive |
| Broche 116 | CANTX1 — CAN1 transmit |
| Broche 117 | ADVREF — ADC reference voltage |
| Broche 118 | AD0 — ADC analog input 0 |
| Broche 119 | AD1 — ADC analog input 1 |
| Broche 120 | AD2 — ADC analog input 2 |
| Broche 121 | AD3 — ADC analog input 3 |
| Broche 122 | VDDANA — Analog supply voltage |
| Broche 123 | GNDANA — Analog ground |
| Broche 124 | PWMH0 — PWM High output channel 0 |
| Broche 125 | PWML0 — PWM Low output channel 0 |
| Broche 126 | PWMH1 — PWM High output channel 1 |
| Broche 127 | PWML1 — PWM Low output channel 1 |
| Broche 128 | PWMH2 — PWM High output channel 2 |
| Broche 129 | PWML2 — PWM Low output channel 2 |
| Broche 130 | PWMH3 — PWM High output channel 3 |
| Broche 131 | PWML3 — PWM Low output channel 3 |
| Broche 132 | PWMH4 — PWM High output channel 4 |
| Broche 133 | PWML4 — PWM Low output channel 4 |
| Broche 134 | PWMH5 — PWM High output channel 5 |
| Broche 135 | PWML5 — PWM Low output channel 5 |
| Broche 136 | VDDIO — I/O supply voltage |
| Broche 137 | GND — Ground |
| Broche 138 | QIA0 — QDEC index A0 |
| Broche 139 | QIB0 — QDEC index B0 |
| Broche 140 | PA00A — Alternate function A on PA00 |
| Broche 141 | VDDPLL — PLL supply voltage |
| Broche 142 | GNDPLL — PLL ground |
| Broche 143 | VDDIO — I/O supply voltage |
| Broche 144 | GND — Ground |
Applications typiques
AT32UC3C0512C-ALZR convient pour 8 applications: Automotive BLDC and PMSM Motor Drive, Industrial Servo and Stepper Controller, Automotive HVAC and Body Controller, Field-Oriented Control Robot Math Subsystem, Power Tool Brushless DC Drive, Industrial UPS and Solar Inverter Control, QTouch Capacitive Touch Subsystem, USB Connected Industrial Sensor Node.
Automotive BLDC and PMSM Motor Drive
The AT32UC3C0512C-ALZR is purpose-built for sensorless and sensored FOC control of BLDC and PMSM motors in HVAC blowers, water pumps, oil pumps, and radiator fans. Its hardware single-precision FPU accelerates Park/Clarke transforms and PI loops at 66 MHz with deterministic interrupt latency, while the on-chip 12-bit ADC with simultaneous dual-sample capability samples phase currents at the same instant for accurate current vector reconstruction. The PWMC module delivers complementary 3-phase outputs with hardware dead-time insertion, and QDEC captures quadrature encoder feedback for sensored position control. AEC-Q100 Grade 1 qualification across -40 C to +125 C allows direct use in under-hood environments without additional ruggedisation.
Recommandé
Industrial Servo and Stepper Controller
For industrial servo drives and stepper motor controllers, the AT32UC3C0512C-ALZR provides the loop-rate computation, QDEC feedback, and complementary PWM generation needed for closed-loop position control. The Harvard-cache AVR32 architecture and FPU keep the FOC cycle under 10 microseconds at 66 MHz, leaving CPU headroom for EtherCAT/SERCOS communication stacks. The 512 KB Flash accommodates control loop, communication stack, and parameter tables; 68 KB SRAM supports stack, heap, and dual-loop memory without external RAM. The -40 C to +125 C industrial temperature grade suits cabinet-mounted servo amplifiers and CNC peripherals.
Recommandé
Automotive HVAC and Body Controller
The AT32UC3C0512C-ALZR is well-suited for body and HVAC ECUs thanks to its CAN and LIN support, large Flash for stack/runtime libraries, and AEC-Q100 Grade 1 qualification. Two on-die CAN controllers connect to chassis and powertrain CAN buses simultaneously, while four USARTs interface to LIN, RS-232 debug, or auxiliary sensors. FlashVault code protection isolates OEM bootloader from tuner code, an important IP-protection feature for body controllers exposed to service tools. Operating at 3.3 V and 5 V lets the MCU share rails with automotive sensors without level shifters.
Recommandé
Field-Oriented Control Robot Math Subsystem
Engineers implementing FOC on multi-axis robotic joints can deploy one AT32UC3C0512C-ALZR per axis: the device's hardware FPU computes the Park/Clarke and inverse transforms per PWM period, while the multi-channel TC and PWMC synchronize multiple motor phases. Compared to discrete DSP + MCU architectures, this single-chip approach reduces PCB area, BOM cost, and qualification effort. The integrated 12-bit ADC with dual-sample-and-hold is critical for sampling two phase currents simultaneously, a common requirement for space-vector-modulated FOC.
Recommandé
Power Tool Brushless DC Drive
In handheld cordless power tools, the AT32UC3C0512C-ALZR drives sensorless BLDC motors using its BEMF zero-cross detection through the analog comparators. The 144-LQFP footprint is robust for hand-tool vibration profiles and supports AEC-Q100 Grade 1 temperature range, providing thermal margin for tool-head applications. Low-power sleep modes with peripheral event controller wake-up extend battery life in standby. Hardware FPU accelerates predictive commutation algorithms that improve torque response over fixed-timing sensorless methods.
Recommandé
Industrial UPS and Solar Inverter Control
The AT32UC3C0512C-ALZR serves as the central control MCU in small UPS systems and photovoltaic string inverters where deterministic FOC or PFC loops and CAN/RS-485 connectivity are needed. Its 66 MHz core with FPU executes MPPT and inverter-control loops in real time, while the dual CAN controllers interface to inverter-cluster CAN buses. AEC-Q100 Grade 1 qualification supports outdoor cabinet installations in extreme climates. The 144-LQFP package provides good thermal headroom for high-ambient solar installations.
Recommandé
QTouch Capacitive Touch Subsystem
The AT32UC3C0512C-ALZR integrates the Atmel QTouch library for capacitive buttons, sliders, and wheels, enabling touch-based user interfaces on automotive and industrial HMI panels. The peripheral event controller offloads touch scanning from the core, freeing CPU cycles for application logic. Combined with the 144-LQFP package, the part fits behind automotive center-stack displays and industrial control panels where capacitive touch is replacing mechanical switches.
Recommandé
USB Connected Industrial Sensor Node
The AT32UC3C0512C-ALZR's on-chip USB 2.0 full-speed device enables direct USB connectivity for industrial sensor nodes that need to stream data to a host PC or service tool. Combined with the AEC-Q100 temperature range, the part works in factory-floor cabinets and automotive test benches. The integrated 12-bit ADC, CAN, and USARTs let one MCU serve as the node's data-acquisition, processing, and communications hub without external bridges.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AT32UC3C0512C-ALZR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AT32UC3C1512C-ALZR | AT32UC3C2512C-ALZR | AT32UC3C0512C-ALUT | AT32UC3C0512C-ALZ |
|---|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 512 KB | 1.5 MB | 2.5 MB | 512 KB | 512 KB |
| SRAM | 68 KB | 68 KB | 68 KB | 68 KB | 68 KB |
| Core Clock | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz |
| Operating Temperature | -40 C to +125 C (AEC-Q100 G1) | -40 C to +125 C (AEC-Q100 G1) | -40 C to +125 C (AEC-Q100 G1) | -40 C to +125 C (AEC-Q100 G1) | -40 C to +125 C (AEC-Q100 G1) |
| FPU | Yes (single-precision) | Yes (single-precision) | Yes (single-precision) | Yes (single-precision) | Yes (single-precision) |
| Packaging | Tape & Reel (-R suffix) | Tape & Reel | Tape & Reel | Tray (-T suffix) | Tray (no -R/-T suffix) |
| Approx Unit Price (qty-100) | USD 14.95 | USD ~22 (higher flash) | USD ~30 (highest flash) | USD ~18.50 (tray) | USD ~18.50 (tray) |
Principaux différenciateurs
- Automotive-grade qualification (vs AT32UC3C0512C-ALUT)
- Largest available Flash in UC3C family (vs AT32UC3C0512C-ALZR (this product))
- Hardware FPU for FOC acceleration (vs AT32UC3A0512-ALUR (different family))
Notes de conception
Power the AT32UC3C0512C-ALZR from a low-noise 3.3V LDO; the on-chip core regulator (VDDCORE) generates the internal 1.8V domain. Decouple each VDDCORE pin with a 100 nF and a 10 uF bulk capacitor placed within 5 mm of the pin. Estimate: at 66 MHz and full I/O toggling, the active current is approximately 45-55 mA; in deep-sleep it drops below 100 uA, suitable for battery-backed automotive wake scenarios.
Route the ADC analog inputs (AD0-AD3) as differential pairs and isolate them from PWM and digital switching traces. Use a single-point ground connection between the MCU GND and the analog ground plane to avoid ground-loop noise injection into ADC measurements. Place the crystal close to the XIN/XOUT pins with short traces and guard ring to reduce oscillator jitter that affects ADC and PWM timing accuracy.
Do not exceed the AEC-Q100 rated -40 C to +125 C operating junction temperature; verify with thermal simulation rather than relying on the 144-LQFP thermal pad only. The part has no external memory bus, so all firmware must fit in 512 KB Flash plus 68 KB SRAM; size migrations to AT32C1512C/2512C if more headroom is needed. Watch out for NRST polarity: it is active-low, so pull-ups are needed if no external supervisor is connected.
The USB DP/DM traces require 90-ohm differential impedance and length matching within 150 mil; place the USB common-mode choke and ESD diode array within 5 mm of the connector. The CAN bus lines also need 120-ohm termination and isolation per the Microchip CAN system design note in datasheet doc9166. Use the on-chip QTouch library but route touch sensors away from switching power inductors to prevent false triggers.
Informations de conformité
AEC-Q100 Grade 1 qualification. Developed per ISO-TS 16949 quality requirements per the Microchip datasheet (doc9166). RoHS and REACH compliance verified per Microchip product page.
