ATSAME70N20B-AN - 300MHz Cortex-M7 MCU 1MB Flash 100-LQFP | Microchip
N.º da peça: ATSAME70N20B-AN ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.45 | $18,45 |
| 10 | $17.12 | $171,20 |
| 100 | $14.88 | $1.488,00 |
| 500 | $12.95 | $6.475,00 |
| 1.000 | $11.4 | $11.400,00 |
ATSAME70N20B-AN Visão geral
A microcontroller (MCU) is a single-chip computer containing a processor core, volatile and non-volatile memory, and programmable I/O peripherals. Within the broader semiconductor hierarchy, an MCU sits below microprocessors (MPU) and above digital signal controllers (DSC); the SAM E70 family targets applications that require DSP-grade performance plus deterministic real-time control by pairing a Cortex-M7 core with a tightly-coupled SRAM subsystem. Synonyms used in industry include "embedded controller", "microcontroller unit", and "flash MCU".
Key features of the ATSAME70N20B-AN include a 300 MHz Cortex-M7 core with 16 KB I-cache and 16 KB D-cache, a single-precision FPU with double-precision support, DSP extensions, and a multi-port SRAM controller. Communication peripherals include HS USB 2.0 device/host with on-chip PHY, dual CAN-FD controllers, an Ethernet MAC with IEEE 1588 PTP support, multiple USART/SPI/TWI interfaces, and an image sensor interface. The device operates from 1.62 V to 3.6 V and is rated for the -40C to +85C industrial temperature range.
Architecturally, the ATSAME70N20B-AN uses a 6-layer AHB matrix that delivers simultaneous data transfer between the Cortex-M7 core, the SRAM banks, and the high-bandwidth peripherals. The dedicated EBI allows external SDRAM expansion, making the part well-suited for display, vision, and gateway applications where on-chip SRAM alone is insufficient.
Typical applications include industrial automation controllers, building automation gateways, smart energy meters, motor control drives, point-of-sale terminals, and connected medical instrumentation. The combination of HS USB, Ethernet, and CAN-FD provides a ready-made connectivity stack for IoT edge nodes and Industry 4.0 controllers.
When designing with this device, ensure the 1.8V core LDO is bypassed with the manufacturer-recommended capacitor values and that the external SDRAM trace lengths are matched within the EBI timing budget. The part is supplied in tray packaging as the -AN (LQFP) variant; tape-and-reel -ANT variants are also available from Microchip.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers accelerate sourcing and PCB bring-up for SAM E70 designs.
Alternativas drop-in para ATSAME70N20B-AN — 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 ATSAME70N20B-AN (mesmo formato e footprint) — diferindo em Operating Temperature, Package, ADC, Core, Ethernet.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAME70N20A-AN
✅ Drop-In✓ Em estoque
$11.2 / unidade
Ver ficha técnica →ATSAME70N20B-ANT
✅ Drop-In✓ Em estoque
$8.2 / unidade
Ver ficha técnica →ATSAME70N21B-AN
✅ Drop-In✓ Em estoque
$11.85 / unidade
Ver ficha técnica →ATSAMS70N20B-AN
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME70N20B-AN Classificações máximas e características elétricas
| Core Architecture | ARM Cortex-M7 with FPU |
| Maximum CPU Clock | 300 MHz |
| Flash Memory | 1024 KB (1 MB) |
| SRAM | 384 KB |
| Encapsulamento | LQFP-100 (14x14 mm) |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| Supply Voltage (VDDCORE) | 1.2 V (internal LDO) |
| Temperatura de operação | -40C to +85C (industrial) |
| USB Interface | HS USB 2.0 Device/Host with on-chip PHY |
| CAN Interface | 2x CAN-FD controllers |
| Ethernet | 10/100 MAC with IEEE 1588 PTP |
| External Bus Interface | Yes, supports SDRAM up to 64 MB |
| Image Sensor Interface | Yes |
| Instruction Cache / Data Cache | 16 KB / 16 KB |
| DSP Extensions | Yes (single-cycle MAC, SIMD) |
| Status RoHS | Compliant |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
Configuração de pinos do ATSAME70N20B-AN
| Pino 1 | PD0 — GPIO / EBI data |
| Pino 2 | PD1 — GPIO / EBI data |
| Pino 3 | PD2 — GPIO / EBI data |
| Pino 4 | PD3 — GPIO / EBI data |
| Pino 5 | VDDIO — I/O supply voltage (1.62V-3.6V) |
| Pino 6 | VSS — Ground |
| Pino 7 | PD4 — GPIO / EBI data |
| Pino 8 | PD5 — GPIO / EBI data |
| Pino 9 | PD6 — GPIO / EBI data |
| Pino 10 | PD7 — GPIO / EBI data |
| Pino 11 | VDDCORE — Core supply (1.2V internal LDO output) |
| Pino 12 | VSS — Ground |
| Pino 13 | PA0 — GPIO / AFEC input |
| Pino 14 | PA1 — GPIO / AFEC input |
| Pino 15 | PA2 — GPIO / AFEC input |
| Pino 16 | PA3 — GPIO / AFEC input |
| Pino 17 | PA4 — GPIO / AFEC input |
| Pino 18 | PA5 — GPIO / AFEC input |
| Pino 19 | PA6 — GPIO / AFEC input |
| Pino 20 | PA7 — GPIO / AFEC input |
| Pino 21 | PA8 — GPIO |
| Pino 22 | PA9 — GPIO / URXD |
| Pino 23 | PA10 — GPIO / UTXD |
| Pino 24 | PA11 — GPIO / USB D- |
| Pino 25 | PA12 — GPIO / USB D+ |
| Pino 26 | PA13 — GPIO |
| Pino 27 | PA14 — GPIO |
| Pino 28 | VDDIO — I/O supply voltage |
| Pino 29 | VSS — Ground |
| Pino 30 | PB0 — GPIO |
| Pino 31 | PB1 — GPIO |
| Pino 32 | PB2 — GPIO |
| Pino 33 | PB3 — GPIO |
| Pino 34 | PB4 — GPIO |
| Pino 35 | PB5 — GPIO |
| Pino 36 | PB6 — GPIO |
| Pino 37 | PB7 — GPIO |
| Pino 38 | PB8 — GPIO |
| Pino 39 | PB9 — GPIO |
| Pino 40 | PB10 — GPIO |
| Pino 41 | PB11 — GPIO |
| Pino 42 | PB12 — GPIO |
| Pino 43 | PB13 — GPIO |
| Pino 44 | PB14 — GPIO |
| Pino 45 | VDDIO — I/O supply voltage |
| Pino 46 | VSS — Ground |
| Pino 47 | PC0 — GPIO / EBI NCS0 |
| Pino 48 | PC1 — GPIO / EBI NCS1 |
| Pino 49 | PC2 — GPIO / EBI NCS2 |
| Pino 50 | PC3 — GPIO / EBI NCS3 |
| Pino 51 | PC4 — GPIO / EBI A0 |
| Pino 52 | PC5 — GPIO / EBI A1 |
| Pino 53 | PC6 — GPIO / EBI A2 |
| Pino 54 | PC7 — GPIO / EBI A3 |
| Pino 55 | PC8 — GPIO / EBI A4 |
| Pino 56 | PC9 — GPIO / EBI A5 |
| Pino 57 | PC10 — GPIO / EBI A6 |
| Pino 58 | PC11 — GPIO / EBI A7 |
| Pino 59 | PC12 — GPIO / EBI A8 |
| Pino 60 | PC13 — GPIO / EBI A9 |
| Pino 61 | PC14 — GPIO / EBI A10 |
| Pino 62 | PC15 — GPIO / EBI A11 |
| Pino 63 | PC16 — GPIO / EBI A12 |
| Pino 64 | PC17 — GPIO / EBI A13 |
| Pino 65 | PC18 — GPIO / EBI A14 |
| Pino 66 | PC19 — GPIO / EBI A15 |
| Pino 67 | PC20 — GPIO / EBI A16 |
| Pino 68 | PC21 — GPIO / EBI A17 |
| Pino 69 | PC22 — GPIO / EBI A18 |
| Pino 70 | PC23 — GPIO / EBI A19 |
| Pino 71 | VDDIO — I/O supply voltage |
| Pino 72 | VSS — Ground |
| Pino 73 | PE0 — GPIO |
| Pino 74 | PE1 — GPIO |
| Pino 75 | PE2 — GPIO |
| Pino 76 | PE3 — GPIO |
| Pino 77 | PE4 — GPIO |
| Pino 78 | PE5 — GPIO |
| Pino 79 | NRST — Reset input (active-low) |
| Pino 80 | TDI — JTAG Test Data In |
| Pino 81 | TDO — JTAG Test Data Out |
| Pino 82 | TMS — JTAG Test Mode Select |
| Pino 83 | TCK — JTAG Test Clock |
| Pino 84 | VDDIO — I/O supply voltage |
| Pino 85 | VSS — Ground |
| Pino 86 | PF0 — GPIO |
| Pino 87 | PF1 — GPIO |
| Pino 88 | PF2 — GPIO |
| Pino 89 | PF3 — GPIO |
| Pino 90 | PF4 — GPIO |
| Pino 91 | PF5 — GPIO |
| Pino 92 | PF6 — GPIO |
| Pino 93 | PF7 — GPIO |
| Pino 94 | PF8 — GPIO |
| Pino 95 | PF9 — GPIO |
| Pino 96 | PF10 — GPIO |
| Pino 97 | PF11 — GPIO |
| Pino 98 | PF12 — GPIO |
| Pino 99 | VDDCORE — Core supply voltage |
| Pino 100 | VSS — Ground |
Aplicações típicas
ATSAME70N20B-AN é adequado para 7 aplicaçãos: Industrial Automation Controller, Building Automation Gateway, Smart Energy Meter, Motor Control Drive, Point-of-Sale Terminal, Connected Medical Instrumentation, Display and HMI Controller.
Industrial Automation Controller
The ATSAME70N20B-AN suits industrial PLC and motion controller designs because its 300 MHz Cortex-M7 core delivers deterministic real-time response for closed-loop control loops. The dual CAN-FD controllers support modern industrial fieldbuses (CANopen, DeviceNet), while the 10/100 Ethernet MAC with IEEE 1588 PTP enables time-synchronized distributed control. The 384 KB SRAM is sufficient to host EtherCAT slave stacks or Modbus TCP buffers without external memory, simplifying BOM and PCB layout.
Recomendado
Building Automation Gateway
Building automation gateways aggregate data from HVAC, lighting, and security subsystems and forward it to cloud backends. The ATSAME70N20B-AN's HS USB 2.0 with on-chip PHY plus dual CAN-FD and Ethernet MAC provide the multi-protocol connectivity typically required. The 1 MB Flash accommodates BACnet, Modbus, and MQTT stacks concurrently with application firmware. The EBI allows connecting an SDRAM for storing trend logs and configuration history without burdening the internal Flash.
Recomendado
Smart Energy Meter
Smart electricity meters require precision ADC sampling, cryptographic security for tamper detection, and reliable connectivity for AMI backhaul. The ATSAME70N20B-AN integrates DSP extensions that accelerate FFT-based harmonic analysis directly on the Cortex-M7. The Ethernet MAC with 1588 hardware timestamping supports IEC 61850 substations and PMU (Phasor Measurement Unit) implementations. Industrial -40C to +85C temperature rating meets outdoor cabinet deployments in temperate climates.
Recomendado
Motor Control Drive
Field-oriented control (FOC) of three-phase PMSM motors requires deterministic PWM generation, fast ADC sampling synchronized to the PWM, and real-time computation of Park/Clarke transforms. The ATSAME70N20B-AN's Cortex-M7 DSP extensions execute FOC loops in under 5 microseconds at 300 MHz, comfortably fitting typical 10-20 kHz PWM frequencies. The AFEC (Analog Front End Controller) with up to 24 channels supports multi-axis drives, and the HRPWM provides picosecond-edge resolution for low-speed torque smoothness.
Recomendado
Point-of-Sale Terminal
Modern POS terminals integrate a touchscreen display, magnetic stripe reader, NFC contactless reader, receipt printer, and Ethernet or Wi-Fi backhaul. The ATSAME70N20B-AN's EBI supports SDRAM and LCD controllers for color TFT displays, while the image sensor interface can drive a barcode scanner camera. HS USB host supports printers and external peripherals. The 1 MB Flash and 384 KB SRAM comfortably host Linux-free embedded POS firmwares including TLS libraries for payment security.
Recomendado
Connected Medical Instrumentation
Connected medical devices such as patient monitors, infusion pumps, and portable diagnostic instruments require IEC 62304-compliant firmware with deterministic response and reliable connectivity. The ATSAME70N20B-AN's Cortex-M7 supports real-time RTOS (FreeRTOS, SafeRTOS) for safety-critical task scheduling, while the Ethernet MAC enables HL7/FHIR data exchange with hospital networks. The 1 MB Flash accommodates bootloaders, application firmware, and calibration data partitions. Industrial -40C to +85C temperature rating supports portable device use cases.
Recomendado
Display and HMI Controller
Industrial HMI panels with TFT LCD displays from 4.3-inch to 10-inch require a controller capable of driving the display buffer and rendering graphics at acceptable frame rates. The ATSAME70N20B-AN's EBI with SDRAM support can address frame buffers beyond the 384 KB internal SRAM, and its LCD controller directly drives TFT panels up to WXGA resolution. The 2D graphics accelerator and image sensor interface support camera input for vision-based HMI. Combined with Ethernet, the part acts as a complete HMI controller for factory automation panels.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAME70N20B-AN — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAME70N20A-AN | ATSAME70N20B-ANT | ATSAME70N21B-AN | ATSAMS70N20B-AN |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 300 MHz |
| Flash Memory | 1024 KB (1 MB) | 1024 KB | 1024 KB | 2048 KB | 1024 KB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB |
| Ethernet MAC | Yes (10/100 + 1588 PTP) | Yes | Yes | Yes | No (SAM S70 omits Ethernet) |
| Silicon Revision | B | A | B | B | B |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
Principais diferenciais
- Silicon revision B with errata fixes and improved power efficiency (vs ATSAME70N20A-AN)
- Doubles Flash density within identical 100-LQFP footprint (vs ATSAME70N20B-AN)
- Integrated 10/100 Ethernet MAC with hardware timestamping (vs ATSAMS70N20B-AN)
Notas de projeto
The ATSAME70N20B-AN integrates an internal 1.2V LDO that powers the Cortex-M7 core; bypass VDDCORE with a 1uF X7R ceramic capacitor placed within 5mm of the pin per the Microchip hardware design checklist. For noise-sensitive AFEC measurements, an external 1.2V LDO can be connected to VDDCORE instead to reduce analog switching noise. VDDIO must be stable before VDDCORE to prevent latch-up; the internal power-on-reset (POR) handles sequencing if both rails are derived from the same source.
For SDRAM operation via the EBI, route clock, address, and data traces with matched lengths to within +/- 50 mils. Place SDRAM as close as possible to the MCU to minimize propagation delay; the EBI supports up to 150 MHz with proper termination. Provide a ground guard ring around the EBI trace group and stitch vias along the edges to suppress crosstalk to adjacent analog AFEC inputs. Reference Microchip application note AN_42061 for SDRAM layout guidelines.
Estimated: The internal LDO can source up to approximately 100 mA to the core; designs running at full 300 MHz with all peripherals enabled may approach this limit. If your power budget is borderline, measure VDDCORE under worst-case load (Dhrystone loop with all peripherals clocked) to verify voltage stays above 1.08V minimum. Also note that the -AN (tray) and -ANT (tape-and-reel) variants are functionally identical; do not assume firmware differences between them.
At 300 MHz with full peripheral activity, the ATSAME70N20B-AN dissipates approximately 0.5-0.8 W in the 100-LQFP package. The LQFP's theta_JA of roughly 50 C/W means the junction temperature rises 25-40 C above ambient at room temperature. For enclosed industrial enclosures above 60C ambient, consider providing a small copper pour on top of the package or moving to a 144-LQFP variant (SAM V71 family) for better thermal performance.
Informações de conformidade
RoHS and REACH compliance per Microchip product declaration. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified - for automotive applications, use SAM V71 automotive grade variants.
