ATSAME70N20A-AN - 300MHz Cortex-M7 MCU, 1MB Flash, LQFP-100
Teilenummer: ATSAME70N20A-AN ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $16.99 | $16,99 |
| 10 | $15.49 | $154,90 |
| 100 | $13.85 | $1.385,00 |
| 500 | $12.4 | $6.200,00 |
| 1.000 | $11.2 | $11.200,00 |
ATSAME70N20A-AN Übersicht
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.
Drop-in-Alternativen für ATSAME70N20A-AN – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATSAME70N20A-AN (gleiche Bauform und Footprint) – abweichend in ADC, Package, Operating Temperature, Ethernet, USB.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAME70N21A-AN
✅ Drop-In✓ Auf Lager
$15.1 / Stück
Datenblatt ansehen →ATSAME70N19A-ANT
✅ Drop-In✓ Auf Lager
$7.55 / Stück
Datenblatt ansehen →ATSAME70Q21A-AN
✅ Drop-In✓ Auf Lager
$11.78 / Stück
Datenblatt ansehen →ATSAMS70N20A-AN
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ATSAMV71Q21B-CB
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM32H743VIT6
✅ Drop-In✓ Auf Lager
$7.98 / Stück
Datenblatt ansehen →ATSAME70N20A-AN Grenzwerte & elektrische Eigenschaften
| 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 |
| Gehäuse | 100-pin LQFP (14x14 mm) |
| Montageart | Surface Mount |
| Supply Voltage (VDDIO) | 1.8 V / 2.5 V / 3.3 V (selectable I/O domain) |
| Betriebstemperatur | -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 |
| MSL-Level | 3 (168 hours) |
| RoHS-Status | Compliant |
ATSAME70N20A-AN Pin-Konfiguration
| Pin 1 | PA0 — GPIO / Wake-up / WKUP0 |
| Pin 2 | PA1 — GPIO / WKUP1 |
| Pin 3 | PA2 — GPIO |
| Pin 4 | PA3 — GPIO |
| Pin 5 | PA4 — GPIO |
| Pin 6 | PA5 — GPIO |
| Pin 7 | PA6 — GPIO |
| Pin 8 | PA7 — GPIO |
| Pin 9 | PA8 — GPIO |
| Pin 10 | PA9 — GPIO |
| Pin 11 | VDDIO — I/O supply 1.8V/2.5V/3.3V |
| Pin 12 | VSS — Ground |
| Pin 13 | PA10 — GPIO |
| Pin 14 | PA11 — GPIO |
| Pin 15 | PA12 — GPIO |
| Pin 16 | PA13 — GPIO |
| Pin 17 | PA14 — GPIO |
| Pin 18 | PA15 — GPIO |
| Pin 19 | PA16 — GPIO |
| Pin 20 | PA17 — GPIO |
| Pin 21 | PA18 — GPIO |
| Pin 22 | PA19 — GPIO |
| Pin 23 | PA20 — GPIO |
| Pin 24 | PA21 — GPIO |
| Pin 25 | VDDCORE — Core voltage (internal LDO output) |
| Pin 26 | VSS — Ground |
| Pin 27 | PA22 — GPIO |
| Pin 28 | PA23 — GPIO |
| Pin 29 | PA24 — GPIO |
| Pin 30 | PA25 — GPIO |
| Pin 31 | PA26 — GPIO |
| Pin 32 | PA27 — GPIO |
| Pin 33 | PA28 — GPIO |
| Pin 34 | PA29 — GPIO |
| Pin 35 | PA30 — GPIO |
| Pin 36 | PA31 — GPIO |
| Pin 37 | PB0 — GPIO |
| Pin 38 | PB1 — GPIO |
| Pin 39 | PB2 — GPIO |
| Pin 40 | PB3 — GPIO |
| Pin 41 | PB4 — GPIO |
| Pin 42 | PB5 — GPIO |
| Pin 43 | PB6 — GPIO |
| Pin 44 | PB7 — GPIO |
| Pin 45 | PB8 — GPIO |
| Pin 46 | PB9 — GPIO |
| Pin 47 | PB10 — GPIO |
| Pin 48 | PB11 — GPIO |
| Pin 49 | PB12 — GPIO |
| Pin 50 | PB13 — GPIO |
| Pin 51 | PB14 — GPIO |
| Pin 52 | PB15 — GPIO |
| Pin 53 | PB16 — GPIO |
| Pin 54 | PB17 — GPIO |
| Pin 55 | PB18 — GPIO |
| Pin 56 | PB19 — GPIO |
| Pin 57 | PB20 — GPIO |
| Pin 58 | PB21 — GPIO |
| Pin 59 | PB22 — GPIO |
| Pin 60 | PB23 — GPIO |
| Pin 61 | VDDIO — I/O supply |
| Pin 62 | VSS — Ground |
| Pin 63 | PB24 — GPIO |
| Pin 64 | PB25 — GPIO |
| Pin 65 | PB26 — GPIO |
| Pin 66 | PB27 — GPIO |
| Pin 67 | PB28 — GPIO |
| Pin 68 | PB29 — GPIO |
| Pin 69 | PB30 — GPIO |
| Pin 70 | PB31 — GPIO |
| Pin 71 | PC0 — GPIO |
| Pin 72 | PC1 — GPIO |
| Pin 73 | PC2 — GPIO |
| Pin 74 | PC3 — GPIO |
| Pin 75 | PC4 — GPIO |
| Pin 76 | PC5 — GPIO |
| Pin 77 | PC6 — GPIO |
| Pin 78 | PC7 — GPIO |
| Pin 79 | PC8 — GPIO |
| Pin 80 | PC9 — GPIO |
| Pin 81 | PC10 — GPIO |
| Pin 82 | PC11 — GPIO |
| Pin 83 | PC12 — GPIO |
| Pin 84 | PC13 — GPIO |
| Pin 85 | PC14 — GPIO |
| Pin 86 | PC15 — GPIO |
| Pin 87 | PC16 — GPIO |
| Pin 88 | PC17 — GPIO |
| Pin 89 | PC18 — GPIO |
| Pin 90 | PC19 — GPIO |
| Pin 91 | PC20 — GPIO |
| Pin 92 | PC21 — GPIO |
| Pin 93 | PC22 — GPIO |
| Pin 94 | PC23 — GPIO |
| Pin 95 | PC24 — GPIO |
| Pin 96 | PC25 — GPIO |
| Pin 97 | PC26 — GPIO |
| Pin 98 | PC27 — GPIO |
| Pin 99 | PC28 — GPIO |
| Pin 100 | PC29 — GPIO |
Typische Anwendungen
ATSAME70N20A-AN ist geeignet für 8 Anwendungs: 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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAME70N20A-AN – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | 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 |
Wichtigste Unterscheidungsmerkmale
- Integrated USB 2.0 High-Speed PHY (vs. STM32H743VIT6)
- Scalable SAME70 family footprint (vs. ATSAME70N19A-AN)
- Safety variant sibling (vs. ATSAMS70N20A-AN)
- Double-precision FPU (vs. Cortex-M4 based MCUs)
Designhinweise
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.
Compliance-Informationen
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.
