ATSAMV71Q21B-AABT - 300MHz ARM Cortex-M7 MCU, 2MB Flash | Microchip
MPN： ATSAMV71Q21B-AABT ✓ 啟用中ATSAMV71Q21B-AABT 概覽
A Cortex-M7 microcontroller is a 32-bit RISC processor core designed for high-performance embedded applications with deterministic real-time behavior. The Cortex-M7 includes a double-precision floating-point unit (FPU), DSP extensions, and a tightly-coupled memory subsystem that delivers single-cycle access to Flash and SRAM. Within Microchip's portfolio, the SAM V71 family sits between the Cortex-M4-based SAM E70/S70 family and higher-end Cortex-M7 parts, sharing the SAME70/SAMS70 peripheral set while adding higher core frequency and larger memory configurations for graphics, audio, and motor-control applications.
Key features include 300 MHz core clock, 2 MB Flash, 384 KB SRAM, dual CAN-FD controllers, 10/100 Mbps Ethernet MAC with IEEE 1588 support, USB 2.0 High-Speed with PHY, three CAN-FD interfaces, four UART/USART, three I2C, three SPI/I2S, an integrated TFT LCD controller with 2D graphics accelerator (GFX), 12-bit ADC up to 2 Msps, and a 32-bit timer/counter block. The device supports embedded trace (ETM) and is supported by MPLAB X IDE, MPLAB Harmony 3, and Atmel Studio.
Architecturally, the ATSAMV71Q21B uses a Harvard-cache architecture with 16 KB I-cache and 16 KB D-cache, branch prediction, and a memory protection unit (MPU). The graphics accelerator (GLCDC) supports up to XGA (1024x768) panels and provides hardware alpha-blending, making it suitable for HMI applications. The dual CAN-FD controllers comply with ISO 11898-1:2015 and support up to 8 Mbps data rates for next-generation automotive networks.
Typical applications include automotive body and chassis ECUs, industrial HMI panels, machine-vision edge nodes, audio processing systems, motor-control drives with field-oriented control (FOC), and graphics-rich IoT gateways. The automotive-grade temperature range (-40C to +105C) and AEC-Q100 qualification make the device suitable for safety-critical in-cabin systems.
When designing with this MCU, ensure your linker scripts and startup files match the silicon revision (B). The SAM V71 family shares peripherals with SAM E70/S70, allowing firmware migration with minimal changes. For graphics applications, configure the GLCDC for the target display timing and use the 2D accelerator (GFX) to offload GUI rendering from the CPU.
This page synthesizes distributor pricing, AEC-Q100 qualified drop-in alternatives (including SAM E70 variants and SAMS70 variants), and design notes not found in the manufacturer datasheet, helping engineers rapidly select and source the right part for their application.
直接替換替代品，適用於 ATSAMV71Q21B-AABT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAMV71Q21B-AABT （相同外形與佔位） — 差異在於 Ethernet, Core, CAN, Operating Temperature, USB.
ATSAMV71Q21B-AAB
✅ 直接替換聯絡詢價
查看資料表 →ATSAME70Q21B-AN
✅ 直接替換聯絡詢價
查看資料表 →ATSAMS70Q21B-ANT
✅ 直接替換聯絡詢價
查看資料表 →ATSAMV71Q20B-AABT
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMV71Q21B-ABT
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMV71N21B-AABT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAMV71Q21B-AABT 最大額定值與電氣特性
| Core | ARM Cortex-M7 with FPU and DSP extensions |
| Maximum CPU Clock | 300 MHz |
| Bit Width | 32-bit |
| Program Memory (Flash) | 2 MB (2M x 8) |
| SRAM | 384 KB |
| 封裝 | 144-LQFP (20x20 mm) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +105C (Automotive Grade 2) |
| 供應電壓 | 3.0 V to 3.6 V |
| CAN | 2x CAN-FD (ISO 11898-1:2015) |
| Ethernet | 10/100 Mbps MAC with IEEE 1588 |
| USB | USB 2.0 High-Speed with on-chip PHY |
| ADC | 12-bit, up to 2 Msps |
| Graphics | GLCDC + 2D GFX accelerator (XGA max) |
| AEC-Q100 | Qualified (Automotive Grade 2) |
| MSL 等級 | 3 (per JEDEC J-STD-020) |
| RoHS 狀態 | Compliant |
| Packaging | Tape & Reel (suffix T) |
ATSAMV71Q21B-AABT 144-lqfp (20x20 mm) 腳位配置指南
ATSAMV71Q21B-AABT（144-lqfp (20x20 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAMV71Q21B-AABT.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAMV71Q21B-AABT 適用於 6 應用s: Automotive Instrument Cluster HMI, Industrial HMI Touch Panel, Motor Control / Field-Oriented Control (FOC) Drives, Audio Processing and DSP, IoT Edge Gateway with Cellular Connectivity, Medical Diagnostic Device Controller.
Automotive Instrument Cluster HMI
The ATSAMV71Q21B-AABT is purpose-built for automotive instrument cluster displays thanks to its integrated GLCDC controller and 2D GFX accelerator that drive TFT panels up to XGA (1024x768) with hardware alpha-blending. The 300 MHz Cortex-M7 core renders vector gauge graphics, menu animations, and turn-by-turn navigation overlays without burdening the CPU. AEC-Q100 Grade 2 qualification ensures operation from -40C to +105C for in-cabin mounting. Dual CAN-FD interfaces handle body and chassis bus traffic at up to 8 Mbps, while the 10/100 Ethernet MAC with IEEE 1588 timestamping supports 100BASE-T1 automotive Ethernet for ADAS sensor fusion. The 384 KB SRAM is sufficient for layered graphics buffers and real-time gauge animation.
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Industrial HMI Touch Panel
The ATSAMV71Q21B-AABT drives industrial HMI panels with 7- to 10-inch TFT displays, providing integrated GLCDC for direct RGB interface and a 2D GFX accelerator for smooth touchscreen responsiveness. The 300 MHz Cortex-M7 with FPU executes LVGL/Embedded Wizard GUI stacks, while 2 MB Flash stores graphical assets, fonts, and localization tables. The AEC-Q100 qualification extends to industrial environments with extended temperature requirements. On-chip USB 2.0 High-Speed enables firmware updates and data logging to USB drives, while Ethernet MAC supports Modbus TCP, EtherNet/IP, and PROFINET real-time industrial protocols. The Cortex-M7 DSP extensions accelerate FFT analysis for power quality monitoring embedded in the HMI.
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Motor Control / Field-Oriented Control (FOC) Drives
The ATSAMV71Q21B-AABT implements sensorless and encoder-based FOC for BLDC and PMSM motors up to several kW. The Cortex-M7 DSP extensions accelerate Park/Clarke transforms and SVM calculations in a single PWM cycle, while the 300 MHz core enables sub-microsecond control loop latency. The PWM controller drives 3-phase inverters with programmable dead-time insertion and complementary outputs, and the 2 Msps 12-bit ADC samples motor phase currents simultaneously via hardware triggering. AEC-Q100 Grade 2 plus dual CAN-FD enable integration into vehicle traction systems, electric power steering, and industrial servo drives where -40C to +105C operation is mandatory.
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Audio Processing and DSP
The ATSAMV71Q21B-AABT is well suited for multi-channel audio processing systems including automotive amplifiers, active noise cancellation, and professional audio mixers. The Cortex-M7 DSP extensions and SIMD instructions accelerate FFT, FIR, and biquad filter operations, while 384 KB SRAM holds audio buffers and coefficient tables. Three I2S ports support up to 8 channels of digital audio at 192 kHz, while 2 MB Flash stores presets, EQ curves, and OEM DSP algorithms. The hardware AES block encrypts premium audio content, and the Ethernet MAC supports Dante / AVB networked audio transport with IEEE 1588 precision timing.
推薦
IoT Edge Gateway with Cellular Connectivity
The ATSAMV71Q21B-AABT serves as an IoT edge gateway MCU aggregating sensor data over UART, I2C, SPI, and CAN before forwarding via Ethernet or USB. The 300 MHz core runs TLS 1.3 stacks, MQTT brokers, and lightweight ML inference for anomaly detection at the edge. Dual CAN-FD interfaces connect to industrial sensor networks, while the hardware AES engine secures firmware-over-the-air (FOTA) updates. The Cortex-M7 DSP extensions accelerate FFT and feature extraction for predictive maintenance applications, and the 2 MB Flash stores a full TLS certificate chain plus embedded ML models. AEC-Q100 qualification suits outdoor industrial deployments.
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Medical Diagnostic Device Controller
The ATSAMV71Q21B-AABT drives medical diagnostic equipment including point-of-care analyzers, ultrasound beamformers, and patient monitors. The Cortex-M7 DSP extensions accelerate ultrasound beamforming, Doppler shift processing, and ECG feature extraction. The 12-bit ADC with up to 2 Msps sampling captures high-fidelity physiological signals, while the integrated GLCDC drives diagnostic displays directly. Hardware AES encryption protects patient health information (PHI) per HIPAA requirements, and the Ethernet MAC supports DICOM network connectivity for hospital PACS integration. Operating temperature -40C to +105C supports a wide range of clinical and field-deployment environments.
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推薦產品摘要
工程參考資料，適用於 ATSAMV71Q21B-AABT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAMV71Q21B-AAB | ATSAME70Q21B-AN | ATSAMS70Q21B-ANT | ATSAMV71Q20B-AABT | ATSAMV71Q21B-ABT | ATSAMV71N21B-AABT |
|---|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M7, 300 MHz | ARM Cortex-M7, 300 MHz | ARM Cortex-M7, 300 MHz | ARM Cortex-M7, 300 MHz | ARM Cortex-M7, 300 MHz | ARM Cortex-M7, 300 MHz | ARM Cortex-M7, 300 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 1 MB | 2 MB | 2 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB |
| GLCDC + 2D GFX | Yes | Yes | No | No | Yes | Yes | Yes |
| AEC-Q100 Grade | Grade 2 (-40C to +105C) | Grade 2 | Grade 2 | Grade 2 | Grade 2 | Industrial (-40C to +85C) | Grade 2 |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
主要差異化特點
- Integrated GLCDC and 2D GFX accelerator for TFT-driven HMI (對比ATSAME70Q21B-AN)
- Automotive AEC-Q100 Grade 2 qualification vs industrial grade (對比ATSAMV71Q21B-ABT)
- 2 MB Flash for rich graphics assets and FOTA (對比ATSAMV71Q20B-AABT)
設計說明
The ATSAMV71Q21B-AABT requires a low-noise 3.3 V supply capable of sourcing 200 mA peak during 300 MHz operation with all peripherals active. Use a 3.3 V LDO such as the TPS7A4701 or a DC-DC with LC filtering, then place 100 nF + 4.7 uF decoupling on each VDD pin pair as close as possible to the IC. For USB applications, the VBUS pin requires a 3.3 V LDO tolerant of 5 V input; the on-chip USB PHY uses the same 3.3 V rail. Avoid switching noise on the analog AVDD rail to preserve ADC accuracy; isolate AVDD from the digital VDD with a ferrite bead.
Estimated: at 300 MHz with all peripherals active, the ATSAMV71Q21B-AABT consumes approximately 250 mW, yielding a junction temperature rise of 35-40 C above ambient with the standard 144-LQFP 20x20 mm copper footprint (theta_JA ~50 C/W on a 4-layer JEDEC test board). For automotive Grade 2 operation at +105 C ambient, this leaves only 25-30 C headroom. Add thermal vias under the exposed pad (LQFP has no thermal pad, but spreading copper on top/bottom layers helps) and ensure adequate airflow for industrial deployments. Reduce clock frequency to 200 MHz to lower power by ~30% if headroom is insufficient.
Route the SWD signals (SWDIO, SWDCLK, SWO) with 50 ohm controlled impedance and length-matched within 5 mm for reliable debug operation. For USB 2.0 High-Speed, route D+/D- as a 90 ohm differential pair with no stubs, and keep total length under 50 mm. The Ethernet signals require 100 ohm differential routing; place the 49.9 ohm termination resistors within 5 mm of the MAC pins. Crystal traces should be short and symmetric, surrounded by a guard ring tied to GND. Avoid routing digital signals under the analog supply area to minimize ADC crosstalk.
Do not confuse the ATSAMV71Q21B-AABT (B revision, tape-and-reel) with the A revision; register definitions differ and Silicon Errata workarounds must be re-applied. The SAM V71 boots at 12 MHz internal RC oscillator; configure the PLL to 300 MHz in the startup file before any peripheral access. When migrating from ATSAM4S to ATSAMV71, note that the ERASE pin functionality has been replaced by software-controlled flash erase via the FCPE command. For automotive safety designs, use the MPU to isolate graphics buffers from the CAN-FD interrupt handler.
合規資訊
AEC-Q100 Grade 2 qualified per the SAM V71 family datasheet. RoHS and REACH compliant per Microchip product page. Lead-free (Pb-free) and halogen-free per Microchip material declaration. Conflict-mineral statement available from Microchip.
