ATSAME70N20A-AN - 300MHz Cortex-M7 MCU, 1MB Flash, LQFP-100
MPN: ATSAME70N20A-AN ✓ Hoạt độngATSAME70N20A-AN Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals such as timers, ADCs, communication interfaces, and GPIO into one package. The Cortex-M7 architecture sits at the top of the ARM Cortex-M family hierarchy (Cortex-M0 -> M3 -> M4 -> M7) and is the highest-performance tier targeting deterministic real-time DSP and floating-point workloads. The ATSAME70N20A-AN therefore spans the use cases previously reserved for separate DSP or external-FPGA coprocessors while remaining a microcontroller-class device with deterministic interrupt response.
Key features include a 16-bit stereo interface, high-speed USB Host/Device with on-chip HS PHY, two CAN-FD controllers, Ethernet MAC with 1588 PTP support, an image sensor interface, an 8/12-bit Parallel Capture, and a 12-bit 2 MSPS ADC. Cryptographic accelerators (AES-256, SHA, TRNG) and secure-boot with on-chip OTP fuse make the part suitable for connected industrial and IoT security deployments. The integrated High-Speed USB PHY eliminates external transceivers, reducing BOM and PCB area for USB-equipped designs.
The device supports 1.8 V, 2.5 V, and 3.3 V I/O domains, simplifying connection to mixed-voltage sensors, FPGAs, and external memory. A 16-channel Event System, 24-bit timers, and a Quad-SPI interface with XIP (execute-in-place) enable deterministic real-time response and easy expansion of code storage beyond the on-chip 1 MB Flash. Operating temperature spans -40 C to +105 C for industrial environments.
Typical applications include industrial motor control (FOC and PFC), graphical HMI, audio DSP, automotive body and gateway ECUs, smart-energy metering, and connected IoT edge nodes with Ethernet or USB connectivity. The combination of 300 MHz Cortex-M7, FPU, and DSP extensions delivers DSP-class signal-processing throughput on a single MCU.
When designing with this device, plan for an LQFP-100 footprint with a central thermal pad, route the 16-bit data bus and SDRAM signals with controlled impedance, and place decoupling capacitors within 2 mm of every supply pin. Refer to the SAME70 family datasheet for SDRAM timing and the recommended USB and Ethernet magnetics layout.
This page synthesizes distributor pricing, drop-in SAME70 family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ATSAME70N20A-AN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAME70N20A-AN (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, Ethernet, USB.
ATSAME70N21A-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70N19A-ANT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME70Q21A-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMS70N20A-AN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMV71Q21B-CB
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32H743VIT6
✅ Drop-In✓ Còn hàng
$7.98 / Đơn vị
Xem tài liệu →ATSAME70N20A-AN Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M7 with FPU (single + double precision) |
| Maximum CPU Frequency | 300 MHz |
| CoreMark Score | 1500 (typical) |
| Program Flash | 1024 KB (1 MB) |
| SRAM | 384 KB |
| Hộp | 100-pin LQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Supply Voltage (VDDIO) | 1.8 V / 2.5 V / 3.3 V (selectable I/O domain) |
| Nhiệt độ hoạt động | -40 C to +105 C (industrial) |
| USB | USB 2.0 High-Speed Host/Device with on-chip HS PHY |
| CAN | 2x CAN-FD controllers |
| Ethernet | 10/100 MAC with IEEE 1588 PTP |
| ADC | 12-bit, up to 2 MSPS, 24 channels |
| External Bus | 16-bit EBI for SDRAM / SRAM / NAND / PSRAM |
| Crypto Acceleration | AES-256, SHA, True Random Number Generator |
| Secure Boot | On-chip OTP fuse with secure boot loader |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAME70N20A-AN
| Chân 1 | PA0 — GPIO / Wake-up / WKUP0 |
| Chân 2 | PA1 — GPIO / WKUP1 |
| Chân 3 | PA2 — GPIO |
| Chân 4 | PA3 — GPIO |
| Chân 5 | PA4 — GPIO |
| Chân 6 | PA5 — GPIO |
| Chân 7 | PA6 — GPIO |
| Chân 8 | PA7 — GPIO |
| Chân 9 | PA8 — GPIO |
| Chân 10 | PA9 — GPIO |
| Chân 11 | VDDIO — I/O supply 1.8V/2.5V/3.3V |
| Chân 12 | VSS — Ground |
| Chân 13 | PA10 — GPIO |
| Chân 14 | PA11 — GPIO |
| Chân 15 | PA12 — GPIO |
| Chân 16 | PA13 — GPIO |
| Chân 17 | PA14 — GPIO |
| Chân 18 | PA15 — GPIO |
| Chân 19 | PA16 — GPIO |
| Chân 20 | PA17 — GPIO |
| Chân 21 | PA18 — GPIO |
| Chân 22 | PA19 — GPIO |
| Chân 23 | PA20 — GPIO |
| Chân 24 | PA21 — GPIO |
| Chân 25 | VDDCORE — Core voltage (internal LDO output) |
| Chân 26 | VSS — Ground |
| Chân 27 | PA22 — GPIO |
| Chân 28 | PA23 — GPIO |
| Chân 29 | PA24 — GPIO |
| Chân 30 | PA25 — GPIO |
| Chân 31 | PA26 — GPIO |
| Chân 32 | PA27 — GPIO |
| Chân 33 | PA28 — GPIO |
| Chân 34 | PA29 — GPIO |
| Chân 35 | PA30 — GPIO |
| Chân 36 | PA31 — GPIO |
| Chân 37 | PB0 — GPIO |
| Chân 38 | PB1 — GPIO |
| Chân 39 | PB2 — GPIO |
| Chân 40 | PB3 — GPIO |
| Chân 41 | PB4 — GPIO |
| Chân 42 | PB5 — GPIO |
| Chân 43 | PB6 — GPIO |
| Chân 44 | PB7 — GPIO |
| Chân 45 | PB8 — GPIO |
| Chân 46 | PB9 — GPIO |
| Chân 47 | PB10 — GPIO |
| Chân 48 | PB11 — GPIO |
| Chân 49 | PB12 — GPIO |
| Chân 50 | PB13 — GPIO |
| Chân 51 | PB14 — GPIO |
| Chân 52 | PB15 — GPIO |
| Chân 53 | PB16 — GPIO |
| Chân 54 | PB17 — GPIO |
| Chân 55 | PB18 — GPIO |
| Chân 56 | PB19 — GPIO |
| Chân 57 | PB20 — GPIO |
| Chân 58 | PB21 — GPIO |
| Chân 59 | PB22 — GPIO |
| Chân 60 | PB23 — GPIO |
| Chân 61 | VDDIO — I/O supply |
| Chân 62 | VSS — Ground |
| Chân 63 | PB24 — GPIO |
| Chân 64 | PB25 — GPIO |
| Chân 65 | PB26 — GPIO |
| Chân 66 | PB27 — GPIO |
| Chân 67 | PB28 — GPIO |
| Chân 68 | PB29 — GPIO |
| Chân 69 | PB30 — GPIO |
| Chân 70 | PB31 — GPIO |
| Chân 71 | PC0 — GPIO |
| Chân 72 | PC1 — GPIO |
| Chân 73 | PC2 — GPIO |
| Chân 74 | PC3 — GPIO |
| Chân 75 | PC4 — GPIO |
| Chân 76 | PC5 — GPIO |
| Chân 77 | PC6 — GPIO |
| Chân 78 | PC7 — GPIO |
| Chân 79 | PC8 — GPIO |
| Chân 80 | PC9 — GPIO |
| Chân 81 | PC10 — GPIO |
| Chân 82 | PC11 — GPIO |
| Chân 83 | PC12 — GPIO |
| Chân 84 | PC13 — GPIO |
| Chân 85 | PC14 — GPIO |
| Chân 86 | PC15 — GPIO |
| Chân 87 | PC16 — GPIO |
| Chân 88 | PC17 — GPIO |
| Chân 89 | PC18 — GPIO |
| Chân 90 | PC19 — GPIO |
| Chân 91 | PC20 — GPIO |
| Chân 92 | PC21 — GPIO |
| Chân 93 | PC22 — GPIO |
| Chân 94 | PC23 — GPIO |
| Chân 95 | PC24 — GPIO |
| Chân 96 | PC25 — GPIO |
| Chân 97 | PC26 — GPIO |
| Chân 98 | PC27 — GPIO |
| Chân 99 | PC28 — GPIO |
| Chân 100 | PC29 — GPIO |
Ứng dụng tiêu biểu
ATSAME70N20A-AN phù hợp cho 8 Áp dụngs: Industrial Motor Control (FOC / PFC), Graphical HMI Touch Panels, Connected Industrial IoT Edge Nodes, Audio Processing and USB Audio Devices, Automotive Body and Gateway ECUs, Smart Energy Metering, Industrial Machine Vision, Robotics and Drone Flight Controllers.
Industrial Motor Control (FOC / PFC)
The ATSAME70N20A-AN is purpose-built for industrial motor control. Its Cortex-M7 core with single- and double-precision FPU executes field-oriented control (FOC) loops at 300 MHz, easily handling 20 kHz PWM with sub-microsecond jitter. The on-chip 12-bit 2 MSPS ADC captures three-phase current and DC-bus voltage simultaneously, while the hardware sine/cosine math accelerator delivers vector rotations without CPU load.
Được đề xuất
Graphical HMI Touch Panels
The 300 MHz Cortex-M7 plus 384 KB SRAM drives WVGA TFT-LCD displays using the integrated LCD controller with overlay and color palette. Combined with external SDRAM via the 16-bit EBI, designers can render anti-aliased fonts, animations, and image icons smoothly. The image sensor interface (ISI) supports camera input for industrial HMI cameras, while the capacitive touch library uses the event channel for low-latency input.
Được đề xuất
Connected Industrial IoT Edge Nodes
The ATSAME70N20A-AN is engineered for Ethernet- and USB-connected industrial edge nodes. The 10/100 MAC with IEEE 1588 PTP hardware timestamping enables sub-microsecond synchronization for deterministic Ethernet (TSN-ready) deployments, while the two CAN-FD controllers support modern automotive and industrial CAN networks. AES-256 and SHA hardware acceleration secures OTA firmware updates and TLS tunnels without taxing the CPU.
Được đề xuất
Audio Processing and USB Audio Devices
The integrated 16-bit stereo audio interface plus USB 2.0 High-Speed device mode make the ATSAME70N20A-AN ideal for USB audio DACs, headsets, and professional audio equipment. The Cortex-M7 FPU executes biquad filters, dynamics processing, and ASIO drivers in real time, while the on-chip HS USB PHY streams 192 kHz/24-bit audio directly to a host PC with deterministic latency.
Được đề xuất
Automotive Body and Gateway ECUs
ATSAME70N20A-AN is suitable for non-safety body and gateway ECUs where the Cortex-M7 handles CAN-FD aggregation, LIN coordination, and Ethernet backhaul. Two CAN-FD controllers multiplex multiple legacy CAN buses, while Ethernet MAC bridges them to a central gateway. The -40 C to +105 C industrial temperature range covers most cabin and underhood locations, though safety-critical domains should move to ATSAMS70N20A-AN instead.
Được đề xuất
Smart Energy Metering
The high-performance Cortex-M7 plus 12-bit 2 MSPS ADC make the ATSAME70N20A-AN ideal for smart electricity meters, performing real-time Class 0.2 metering calculations, RMS measurement, and harmonic analysis. The hardware crypto block secures DLMS/COSEM communications over Ethernet or PLC links, and the RTC with calendar supports tariff scheduling and time-of-use billing without external RTC chips.
Được đề xuất
Industrial Machine Vision
The integrated image sensor interface (ISI) of the ATSAME70N20A-AN streams camera input up to 720p/30 fps into SDRAM, while the Cortex-M7 runs pre-processing, blob detection, and barcode recognition in real time. Combined with the Ethernet MAC, this enables compact industrial inspection cameras for assembly line QC that do not require an external processor or DSP.
Được đề xuất
Robotics and Drone Flight Controllers
The 300 MHz Cortex-M7 with double-precision FPU runs quaternion-based flight math and PID loops at kHz rates for multirotor flight controllers. High-speed USB, dual CAN-FD, and Quad-SPI peripheral expansion support ESC telemetry, GPS modules, and radio links. The SAME70 family is widely adopted in open-source flight stacks such as PX4-compatible autopilots, making ATSAME70N20A-AN a drop-in upgrade path.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME70N20A-AN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAME70N21A-AN | ATSAME70N19A-AN | ATSAMS70N20A-AN | STM32H743VIT6 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| Package | LQFP-100 (14x14) | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same |
| Core | Cortex-M7 300 MHz | Cortex-M7 300 MHz | Cortex-M7 300 MHz | Cortex-M7 300 MHz | Cortex-M7 480 MHz |
| Flash | 1 MB | 2 MB | 512 KB | 1 MB | 1 MB |
| SRAM | 384 KB | 384 KB | 256 KB | 384 KB | 1 MB |
| USB | HS PHY on-chip | HS PHY on-chip | HS PHY on-chip | HS PHY on-chip | FS only on-chip; HS needs external PHY |
| Ethernet | 10/100 + 1588 PTP | 10/100 + 1588 PTP | 10/100 + 1588 PTP | 10/100 + 1588 PTP | 10/100 + 1588 PTP |
| CAN | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD |
| Crypto / Secure Boot | AES-256 + SHA + TRNG + OTP | AES-256 + SHA + TRNG + OTP | AES-256 + SHA + TRNG + OTP | AES-256 + SHA + TRNG + OTP + safety lockstep | AES/TDES + RNG + secure boot (separate model lines) |
| Indicative 1k+ price (USD) | 11.20 | 13.40 | 10.10 | 16.80 | 12.50 |
Bảo phân biệt quan trọng
- Integrated USB 2.0 High-Speed PHY (vsSTM32H743VIT6)
- Scalable SAME70 family footprint (vsATSAME70N19A-AN)
- Safety variant sibling (vsATSAMS70N20A-AN)
- Double-precision FPU (vsCortex-M4 based MCUs)
Ghi chú thiết kế
Estimated: at 300 MHz with all peripherals active, core current is approximately 150 mA from VDDCORE plus 30 mA distributed across VDDIO banks. Use a 3.3 V LDO with at least 500 mA headroom and place 100 nF + 4.7 uF decoupling within 2 mm of every VDDIO/VDDCORE pin. Add a ferrite bead between analog and digital VDDIO if the 12-bit ADC is in use.
Route the 16-bit EBI bus to external SDRAM with controlled impedance (50 ohm single-ended) and length-match within 50 mils. Keep SDRAM traces short, use 22 ohm series damping, and place a ground guard ring around the clock pair to maintain signal integrity at 100 MHz SDRAM clock. The QSPI traces to boot flash should also be length-matched within 10 mil.
The LQFP-100 thermal pad is not present, so thermal dissipation relies entirely on the lead frame. For high ambient temperature (>85 C) designs running sustained Cortex-M7 at 300 MHz, ensure PCB copper area of at least 4 square inches around the device. Failure to disable unused peripherals in software increases VDDIO draw by up to 30 mA.
USB 2.0 High-Speed requires 90 ohm differential impedance on the DP/DN pair. Route DP/DN with continuous reference plane on layer 2, no splits or via stubs, and place the ESD protection diode within 3 mm of the connector. Per USB-IF compliance, keep the total DP/DN length under 50 mm for the on-chip HS PHY.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial grade -40 C to +105 C only; not AEC-Q100 qualified - choose ATSAMV71 family for AEC-Q100 automotive.
