ATSAM4C32CA-AUTR - Dual-Core 120MHz 2MB Flash MCU | Microchip
N.º da peça: ATSAM4C32CA-AUTR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $4.05 | $40,50 |
| 100 | $3.85 | $385,00 |
| 500 | $3.65 | $1.825,00 |
| 1.000 | $3.45 | $3.450,00 |
ATSAM4C32CA-AUTR Visão geral
A microcontroller (MCU) is a complete computing system on a single chip, combining a processor core, memory, and peripherals. Within the power-management hierarchy, the SAM4C family sits above simple single-core MCUs: it integrates two ARM Cortex-M4 RISC processors, allowing one core to run the main application while the second handles communication, metering calculations, or security tasks, effectively replacing a discrete coprocessor.
Key differentiating features include the dual-core Cortex-M4 architecture (with floating-point unit, i.e., Cortex-M4F support), 2 MB (2M x 8) of on-chip flash for dual-bank firmware images, hardware cryptographic acceleration (per the Mouser designation CRYPTO), and industrial temperature qualification. These attributes directly target three-phase electricity metering and secure IoT endpoints.
Technically, each Cortex-M4 core executes at up to 120 MHz, delivering high single-cycle DSP performance with hardware divide and SIMD instructions. The flash density supports large RTOS-based stacks such as FreeRTOS and dual-image OTA upgrades. The crypto engine offloads AES and related algorithms from software, reducing CPU load and improving side-channel resistance for billing-grade security.
Typical applications include smart energy meters, data concentrators in smart-grid infrastructure, secure industrial gateways, and IoT sensor hubs requiring both compute headroom and cryptographic protection. The dual-core design isolates metering firmware from network stacks for improved robustness.
Design consideration: confirm the exact SRAM size, peripheral set, and pinout from the official Microchip ATSAM4C32 datasheet before layout, and verify land pattern dimensions against the 14x14 mm LQFP-100 footprint.
This page synthesizes distributor pricing (as of 2026-09-20), drop-in same-family alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Alternativas drop-in para ATSAM4C32CA-AUTR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAM4C32CA-AUTR (mesmo formato e footprint) — diferindo em Core Processor, Package, Connectivity, Core Size, Flash Memory.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAM4C16CA-AU
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$9.56 / unidade
Ver ficha técnica →ATSAM4C8CA-AU
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$3.95 / unidade
Ver ficha técnica →ATSAM4S16CA-AU
✅ Drop-In✓ Em estoque
$5.55 / unidade
Ver ficha técnica →CY9AF156NPQC-G-JNE2
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAM4C32CA-AUTR Classificações máximas e características elétricas
| Core Processor | ARM Cortex-M4/M4F (dual-core) |
| Number of Cores | 2 |
| Core Architecture | 32-bit RISC |
| Maximum Clock Speed | 120 MHz |
| Flash Memory | 2 MB (2M x 8) |
| Tensão de alimentação | 3.3 V |
| Encapsulamento | 100-LQFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +85C (industrial) |
| Security Features | Hardware cryptographic acceleration |
| Product Series | SAM4C (ATSAM4C32) |
| Packaging | Tape & Reel (TR) |
| Status RoHS | RoHS Compliant |
| Base Product Number | ATSAM4C32 |
Guia de Configuração de Pinos do ATSAM4C32CA-AUTR 100-lqfp (14x14 mm)
Configuração de pinos para ATSAM4C32CA-AUTR (pacote 100-lqfp (14x14 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para ATSAM4C32CA-AUTR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ATSAM4C32CA-AUTR é adequado para 6 aplicaçãos: Smart Electricity Meters, Smart Grid Data Concentrators, Secure IoT Gateways, Industrial Control and Automation, Building Automation and Home Energy Displays, Battery-Powered Portable Measurement.
Smart Electricity Meters
The ATSAM4C32CA-AUTR was purpose-built for smart energy metering: its two 120 MHz Cortex-M4 cores can dedicate one processor to metering computations (DSP-heavy accumulation and RMS calculations leveraging the Cortex-M4F DSP instructions) while the second core independently runs communication protocols such as DLMS/COSEM over PLC or RF meshes. The 2 MB flash accommodates billing code, protocol stacks, and dual-bank firmware images for secure over-the-air updates in the field. Integrated cryptographic hardware offloads AES-class encryption, protecting billing data and firmware authenticity without consuming core cycles. Operating at 3.3 V in an industrial -40C to +85C LQFP-100 package, it meets the environmental and longevity demands of deployed meter infrastructure.
Recomendado
Smart Grid Data Concentrators
In smart-grid data concentrators, the ATSAM4C32CA-AUTR aggregates traffic from hundreds of downstream meters while simultaneously uplinking to utility head-end systems. The dual-core 120 MHz architecture enables true concurrent processing: one Cortex-M4 manages the metering-bus protocol stack while the other handles WAN communication and protocol translation, eliminating context-switch bottlenecks that single-core MCUs face. Its 2 MB (2M x 8) flash stores large routing tables, multiple protocol stacks, and secure OTA firmware banks, while the crypto engine authenticates upstream links. The 100-pin LQFP supplies sufficient GPIO and peripheral interfaces for dual communication channels, and the industrial temperature rating suits pole-mounted and substation cabinets.
Recomendado
Secure IoT Gateways
For industrial IoT gateways, the ATSAM4C32CA-AUTR combines 2 MB of flash for embedded Linux-adjacent or RTOS stacks (FreeRTOS-class) with hardware cryptographic acceleration for TLS-grade device identity and secure boot. The dual-core Cortex-M4 split - one core for sensor acquisition and edge preprocessing, the other for network transport - delivers deterministic latency that single-core designs struggle to achieve. Running at 120 MHz with DSP/FPU instructions, the cores efficiently handle filtering and protocol encoding. The 3.3 V operation simplifies integration with standard logic and communication PHYs, and the 100-pin LQFP (14x14 mm) provides the GPIO density needed for multiple sensor buses, displays, and radio modules in a compact industrial footprint.
Recomendado
Industrial Control and Automation
Industrial control nodes benefit from the ATSAM4C32CA-AUTR's combination of 120 MHz dual-core compute, rich 100-pin I/O, and -40C to +85C industrial qualification. One Cortex-M4 core can execute the real-time control loop (PID, PWM generation with FPU precision) while the second core manages fieldbus communication (Modbus, CAN-based networks) and HMI updates, isolating hard-real-time duties from protocol timing. The 2 MB flash holds control logic, parameter tables, logging, and a bootloader for field upgrades, while hardware crypto secures configuration data and firmware. At 3.3 V with surface-mount LQFP-100 construction, it integrates cleanly into standard industrial control boards and motor-control front-end designs.
Recomendado
Building Automation and Home Energy Displays
The ATSAM4C32CA-AUTR serves building automation controllers and home energy management displays where metering accuracy and connectivity coexist. Its dual-core architecture runs the display/HMI task (driving segments or touch interfaces) on one Cortex-M4 core at 120 MHz while the second core processes energy data and network communication, keeping the UI responsive. The 2 MB flash supports graphical assets, protocol stacks, and OTA updates, and the cryptographic engine protects user energy data in compliance with privacy requirements. With 100 GPIO-capable pins in a 14x14 mm LQFP, designers can integrate multiple sensors, relays, and communication transceivers on one controller, reducing BOM count versus discrete MCU-plus-processor designs.
Recomendado
Battery-Powered Portable Measurement
Portable and battery-powered measurement instruments exploit the ATSAM4C32CA-AUTR's ability to partition workloads across its two 120 MHz Cortex-M4 cores: one core sleeps between measurement bursts while the other handles UI and logging, optimizing energy budget. The Cortex-M4F's hardware FPU accelerates signal-processing math (FFT, filtering) common in portable analyzers, and 2 MB flash retains instrument firmware, calibration tables, and datalogging space. Hardware crypto secures calibration data and wireless links when telemetry is added. The 3.3 V, industrial-grade 100-pin LQFP offers the analog-digital interface density required for multi-channel acquisition front-ends in a compact surface-mount board.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAM4C32CA-AUTR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAM4C16CA-AU | ATSAM4C8CA-AU | ATSAM4S16CA-AU | CY9AF156NPQC-G-JNE2 |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP - same footprint | 100-LQFP - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Infineon (Cypress) |
| Core Configuration | Dual-core ARM Cortex-M4/M4F | Dual-core ARM Cortex-M4 | Dual-core ARM Cortex-M4 | Single-core ARM Cortex-M4 | Single-core ARM Cortex-M3 |
Principais diferenciais
- Dual-core architecture on a single die (vs ATSAM4S16CA-AU)
- 2 MB flash for dual-bank OTA firmware (vs ATSAM4C16CA-AU)
- Cortex-M4 DSP/FPU performance vs Cortex-M3 competitors (vs CY9AF156NPQC-G-JNE2)
Notas de projeto
The ATSAM4C32CA-AUTR operates from a 3.3 V supply. Decouple each VDD/VDDIO pin pair with 100 nF ceramic capacitors placed within 2 mm of the pins, and add bulk capacitance (10 uF) near the LQFP-100 corner supply entries. If the design derives 3.3 V from a switching regulator, consider an LDO post-regulator or good LC filtering, since metering front-ends and the ADC peripherals are sensitive to switching ripple. Estimated: total core+peripheral current draw is in the tens of milliamps at 120 MHz per Microchip SAM4C family typical figures - confirm exact values in the datasheet electrical characteristics table before sizing the regulator.
Use the standard 14x14 mm LQFP-100 land pattern from IPC-7351 or the Microchip package drawing, with solder-mask-defined pads for reliable reflow. Place a solid ground plane on layer 2 directly under the MCU to control return paths. Keep the crystal/oscillator loop short, guard it with ground, and route the analog front-end (ADC inputs for metering sensing) away from high-dvi/dt digital traces and the crypto-bus switching activity. Provide test points on SWD (serial wire debug) pins for programming and production firmware updates.
A frequent pitfall with dual-core SAM4C devices is assuming both Cortex-M4 cores boot identically - review the datasheet boot and core-communication (mailbox) mechanism before partitioning firmware, and verify which core owns which peripheral via the matrix controller. Second, do not exceed 2 MB flash addressing across dual banks when implementing OTA; plan bank boundaries up front. Third, the AUTR suffix denotes tape-and-reel industrial packaging - order quantity 1000 reels for production; smaller quantities should specify the tray-packaged variant if handling equipment lacks reel feeders.
Informações de conformidade
RoHS compliant per Onlinecomponents distributor datasheet listing; Mouser lists the package as Green (halogen-free designation typical of Microchip Green packages, but confirm via official Microchip certificate). Not an automotive AEC-Q100 part.