ATSAME70N20B-ANT - ARM Cortex-M7 MCU 300MHz 1MB Flash LQFP-100 | Microchip
N.º da peça: ATSAME70N20B-ANT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $13.2 | $13,20 |
| 10 | $12.3 | $123,00 |
| 100 | $11.15 | $1.115,00 |
| 500 | $9.95 | $4.975,00 |
| 1.000 | $9.05 | $9.050,00 |
| 2.500 | $8.2 | $20.500,00 |
ATSAME70N20B-ANT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The SAM E70 line targets high-performance embedded applications, occupying the upper tier of the Cortex-M family alongside Cortex-M7 variants from STMicroelectronics and NXP. The Cortex-M7 core in the SAME70N20 includes a double-precision FPU, MPU, and DSP extensions, enabling complex signal-processing workloads at deterministic latencies. The device operates from a 1.7 V to 3.6 V supply, drawing microamp-level sleep current for battery-aware designs.
Key features include an integrated 1 MB Flash, 384 KB SRAM, high-speed USB 2.0 High-Speed PHY, dual CAN-FD controllers, Ethernet MAC with 1588 timestamping, an HS SD card interface, and a 12-bit 2 Msps ADC. The SAME70N20B variant (B silicon revision) supports enhanced connectivity, including the on-chip high-speed USB PHY that simplifies USB Host designs. The 100-pin LQFP package exposes 75 GPIO, three SPI, four UART/USART, two I2C, and two CAN interfaces, providing extensive connectivity.
Typical applications include industrial automation, automotive infotainment, smart energy, IoT gateways, and graphical HMI. The 300 MHz core and large memory suit real-time motor control, audio processing, and protocol bridging tasks. The on-chip HS USB PHY and Ethernet MAC make the part attractive for connected embedded products that previously required external companion chips.
Designers should review the SAME70 family datasheet for pin mux configuration, power supply sequencing, and recommended bypass capacitor layout. For new designs, ATSAME70N20B-ANT offers a balance of compute, memory, and connectivity in a footprint compatible with the wider SAME70 family.
Alternativas drop-in para ATSAME70N20B-ANT — 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-ANT (mesmo formato e footprint) — diferindo em Package, Operating Temperature, Flash Memory, MSL Level, Core.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAME70N20B-AN
✅ Drop-In✓ Em estoque
$11.4 / unidade
Ver ficha técnica →ATSAME70N20B-CNT
✅ Drop-In✓ Em estoque
$10.5 / unidade
Ver ficha técnica →ATSAMS70N20B-ANT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME70N20A-ANT
✅ Drop-In✓ Em estoque
$9.5 / unidade
Ver ficha técnica →ATSAME70N21B-CFN
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32F767ZIT6
✅ Drop-In✓ Em estoque
$17.6 / unidade
Ver ficha técnica →ATSAME70N20B-ANT Classificações máximas e características elétricas
| Core | ARM Cortex-M7 with FPU |
| Core Revision | r1p1 (silicon revision B) |
| Maximum Clock Speed | 300 MHz |
| Program Memory | 1 MB Flash (1M x 8) |
| SRAM | 384 KB |
| Supply Voltage Range | 1.7 V to 3.6 V |
| Encapsulamento | 100-LQFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| GPIO Count | 75 |
| Temperatura de operação | -40C to +105C (industrial) |
| Communication Interfaces | USB 2.0 High-Speed, 2x CAN-FD, Ethernet MAC, 3x SPI, 4x UART/USART, 2x I2C, HS SD card |
| ADC | 12-bit, up to 2 Msps |
| DMA Channels | 24 (XDMAC) |
| Status RoHS | Compliant |
| Nível MSL | 3 (per LQFP standard) |
| AEC-Q100 | Not applicable (industrial-grade) |
| Lead-Free | Yes |
Configuração de pinos do ATSAME70N20B-ANT
| Pino 1 | PB0 — General purpose I/O pin (multiplexed peripheral functions) |
| Pino 2 | PB1 — General purpose I/O pin |
| Pino 3 | PB2 — General purpose I/O pin |
| Pino 4 | PB3 — General purpose I/O pin |
| Pino 5 | VDDIO — I/O supply voltage |
| Pino 6 | VSSIO — I/O ground reference |
| Pino 7 | PB4 — General purpose I/O pin |
| Pino 8 | PB5 — General purpose I/O pin |
| Pino 9 | PB6 — General purpose I/O pin |
| Pino 10 | PB7 — General purpose I/O pin |
| Pino 11 | PB8 — General purpose I/O pin |
| Pino 12 | PB9 — General purpose I/O pin |
| Pino 13 | PB10 — General purpose I/O pin |
| Pino 14 | PB11 — General purpose I/O pin |
| Pino 15 | PB12 — General purpose I/O pin |
| Pino 16 | PB13 — General purpose I/O pin |
| Pino 17 | PB14 — General purpose I/O pin |
| Pino 18 | PB15 — General purpose I/O pin |
| Pino 19 | PA0 — General purpose I/O pin |
| Pino 20 | PA1 — General purpose I/O pin |
| Pino 21 | PA2 — General purpose I/O pin |
| Pino 22 | PA3 — General purpose I/O pin |
| Pino 23 | PA4 — General purpose I/O pin |
| Pino 24 | PA5 — General purpose I/O pin |
| Pino 25 | PA6 — General purpose I/O pin |
| Pino 26 | PA7 — General purpose I/O pin |
| Pino 27 | PA8 — General purpose I/O pin |
| Pino 28 | PA9 — General purpose I/O pin |
| Pino 29 | PA10 — General purpose I/O pin |
| Pino 30 | PA11 — General purpose I/O pin |
| Pino 31 | PA12 — General purpose I/O pin |
| Pino 32 | PA13 — General purpose I/O pin |
| Pino 33 | PA14 — General purpose I/O pin |
| Pino 34 | PA15 — General purpose I/O pin |
| Pino 35 | PA16 — General purpose I/O pin |
| Pino 36 | PA17 — General purpose I/O pin |
| Pino 37 | PA18 — General purpose I/O pin |
| Pino 38 | PA19 — General purpose I/O pin |
| Pino 39 | PA20 — General purpose I/O pin |
| Pino 40 | PA21 — General purpose I/O pin |
| Pino 41 | PA22 — General purpose I/O pin |
| Pino 42 | PA23 — General purpose I/O pin |
| Pino 43 | PA24 — General purpose I/O pin |
| Pino 44 | PA25 — General purpose I/O pin |
| Pino 45 | PA26 — General purpose I/O pin |
| Pino 46 | PA27 — General purpose I/O pin |
| Pino 47 | PA28 — General purpose I/O pin |
| Pino 48 | PA29 — General purpose I/O pin |
| Pino 49 | PA30 — General purpose I/O pin |
| Pino 50 | PA31 — General purpose I/O pin |
| Pino 51 | VDDCORE — Core voltage supply (1.2 V typical) |
| Pino 52 | VSS — Core ground reference |
| Pino 53 | NRST — Reset input (active low) |
| Pino 54 | XIN — Crystal oscillator input |
| Pino 55 | XOUT — Crystal oscillator output |
| Pino 56 | VDDPLL — PLL analog supply |
| Pino 57 | VSSPLL — PLL analog ground |
| Pino 58 | PC0 — General purpose I/O pin |
| Pino 59 | PC1 — General purpose I/O pin |
| Pino 60 | PC2 — General purpose I/O pin |
| Pino 61 | PC3 — General purpose I/O pin |
| Pino 62 | PC4 — General purpose I/O pin |
| Pino 63 | PC5 — General purpose I/O pin |
| Pino 64 | PC6 — General purpose I/O pin |
| Pino 65 | PC7 — General purpose I/O pin |
| Pino 66 | PC8 — General purpose I/O pin |
| Pino 67 | PC9 — General purpose I/O pin |
| Pino 68 | PC10 — General purpose I/O pin |
| Pino 69 | PC11 — General purpose I/O pin |
| Pino 70 | PC12 — General purpose I/O pin |
| Pino 71 | PC13 — General purpose I/O pin |
| Pino 72 | PC14 — General purpose I/O pin |
| Pino 73 | PC15 — General purpose I/O pin |
| Pino 74 | PC16 — General purpose I/O pin |
| Pino 75 | PC17 — General purpose I/O pin |
| Pino 76 | PC18 — General purpose I/O pin |
| Pino 77 | PC19 — General purpose I/O pin |
| Pino 78 | PC20 — General purpose I/O pin |
| Pino 79 | PC21 — General purpose I/O pin |
| Pino 80 | PC22 — General purpose I/O pin |
| Pino 81 | PC23 — General purpose I/O pin |
| Pino 82 | PC24 — General purpose I/O pin |
| Pino 83 | PC25 — General purpose I/O pin |
| Pino 84 | PC26 — General purpose I/O pin |
| Pino 85 | PC27 — General purpose I/O pin |
| Pino 86 | PC28 — General purpose I/O pin |
| Pino 87 | PC29 — General purpose I/O pin |
| Pino 88 | PC30 — General purpose I/O pin |
| Pino 89 | PC31 — General purpose I/O pin |
| Pino 90 | VDDIO — I/O supply voltage |
| Pino 91 | VSSIO — I/O ground reference |
| Pino 92 | PD0 — General purpose I/O pin |
| Pino 93 | PD1 — General purpose I/O pin |
| Pino 94 | PD2 — General purpose I/O pin |
| Pino 95 | PD3 — General purpose I/O pin |
| Pino 96 | PD4 — General purpose I/O pin |
| Pino 97 | PD5 — General purpose I/O pin |
| Pino 98 | PD6 — General purpose I/O pin |
| Pino 99 | PD7 — General purpose I/O pin |
| Pino 100 | PD8 — General purpose I/O pin |
Aplicações típicas
ATSAME70N20B-ANT é adequado para 7 aplicaçãos: Industrial Motor Control, Automotive Infotainment HMI, Industrial IoT Gateway, Audio Processing & DSP, Smart Energy Metering, Graphical HMI & Touch Panels, Point-of-Sale Terminal.
Industrial Motor Control
The ATSAME70N20B-ANT fits industrial motor control thanks to its 300 MHz Cortex-M7 core with double-precision FPU and DSP extensions, which can execute field-oriented control (FOC) loops at the sub-microsecond latencies demanded by high-RPM BLDC and PMSM drives. The 384 KB SRAM provides ample headroom for observer and estimator state buffers without external memory. The dual CAN-FD controllers allow simultaneous communication with a primary servo bus and a safety/secondary channel, while the 12-bit 2 Msps ADC supports current-sense sampling with adequate bandwidth. The SAME70 firmware ecosystem (Atmel Start, ASF, MPLAB Harmony) accelerates development of trapezoidal, sinusoidal, and FOC control loops.
Recomendado
Automotive Infotainment HMI
The ATSAME70N20B-ANT serves automotive infotainment HMI controllers well because it combines the Cortex-M7 DSP capability for audio decoding with high-speed USB, Ethernet MAC with 1588 timestamping, and the LCD controller needed to drive WVGA touch displays. The 1 MB Flash holds full LVGL/MDK-Plus GUI assets plus Bluetooth/WiFi co-processor firmware, while 384 KB SRAM supports framebuffer double-buffering. The LQFP-100 package and -40C to +105C operating range align with cabin electronics requirements. The on-chip HS USB PHY enables direct connection to Wi-Fi/Bluetooth modules without external transceiver components.
Recomendado
Industrial IoT Gateway
The ATSAME70N20B-ANT is a strong fit for industrial IoT gateways that aggregate sensor data from Modbus, CAN, and Ethernet field buses and bridge it to cloud connectivity via Ethernet or USB. The 300 MHz Cortex-M7 runs TLS 1.3 and MQTT stacks comfortably while leaving cycles for protocol parsing, and the 1 MB Flash accommodates full LwIP + wolfSSL implementations. The Ethernet MAC with 1588 hardware timestamping ensures precise PTP synchronization for substation and grid-edge applications. The 384 KB SRAM holds multiple concurrent TLS session buffers without external memory.
Recomendado
Audio Processing & DSP
The ATSAME70N20B-ANT supports audio processing and DSP applications through its single-precision and double-precision FPU plus Cortex-M7 SIMD instructions, which accelerate FIR, IIR, FFT, and codec algorithms. The 384 KB SRAM allows multi-stage filter pipelines and audio buffer handling up to 48 kHz / 24-bit stereo streams without external memory. The I2S / SSC interface connects directly to audio DACs and ADCs, and the high-speed USB PHY supports USB audio class 2.0 streaming at 24-bit / 192 kHz. The part handles parametric EQ, room correction, and active crossover implementations in real time.
Recomendado
Smart Energy Metering
The ATSAME70N20B-ANT targets smart energy metering applications because it integrates both a 12-bit 2 Msps ADC for voltage and current sampling and the Cortex-M7 DSP extensions required for harmonic analysis per IEC 61000-4-7. The 384 KB SRAM holds sample buffers and FFT working memory, and the dual CAN-FD controllers interface with photovoltaic inverter and battery management buses. The RTC with calendar mode supports time-of-use tariff tracking, and the secure boot with crypto accelerators (AES, SHA, TRNG) provides anti-tamper protection for revenue metering.
Recomendado
Graphical HMI & Touch Panels
The ATSAME70N20B-ANT drives graphical HMI panels with its integrated LCD controller (up to 1024x768 WVGA) and the 300 MHz core plus 1 MB Flash that store full EmWin/MDK-Plus GUI assets. The capacitive touch sensing interface connects directly to projected-capacitive controllers, while the HS USB PHY enables host-mode file access from USB media. The 384 KB SRAM allows framebuffer double-buffering for tear-free animations. The LQFP-100 package exposes enough GPIO for keypad, encoder, and LED-driver matrix control in addition to the display interface.
Recomendado
Point-of-Sale Terminal
The ATSAME70N20B-ANT serves point-of-sale terminal designs because it integrates USB Host for barcode scanners, Ethernet for payment processing, and a Secure Element interface (SPI) for EMV chip-card authentication. The Cortex-M7 runs terminal application logic, payment cryptography, and display rendering simultaneously without external memory. The -40C to +105C industrial temperature range covers retail environment requirements, and the 1 MB Flash holds full application firmware with secure OTA update staging. The CAN-FD interface supports integration with vending or fuel-pump peripherals.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAME70N20B-ANT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAME70N20B-AN | ATSAME70N20B-CNT | ATSAMS70N20B-ANT | ATSAME70N20A-ANT | ATSAME70N21B-CFN | STM32F767ZIT6 |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| Package | LQFP-100 (14x14 mm) | LQFP-100 (14x14 mm) - same | LQFP-100 (14x14 mm) - same | LQFP-100 (14x14 mm) - same | LQFP-100 (14x14 mm) - same | LQFP-100 (14x14 mm) - same | LQFP-100 (14x14 mm) - same |
| 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 (rev A) | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M7 @ 216 MHz |
| Flash | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB | 2 MB | 2 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 512 KB |
| Ethernet MAC | Yes (with 1588) | Yes (with 1588) | Yes (with 1588) | No (SAM S70 lacks Ethernet) | Yes (with 1588) | Yes (with 1588) | Yes (with 1588) |
| HS USB PHY | Integrated | Integrated | Integrated | Integrated | Integrated (older revision) | Integrated | Integrated (USB OTG HS) |
| Silicon Revision | B | B | B | B | A (older, has errata) | B | Rev Z (independent) |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +85C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +85C |
| Approx Unit Price (qty-1) | USD 13.20 | USD 14.50 | USD 14.00 | USD 12.50 | USD 11.80 (legacy stock) | USD 15.50 | USD 14.20 |
Principais diferenciais
- Highest performance Cortex-M7 with 300 MHz in LQFP-100 (vs STM32F767ZIT6)
- Integrated high-speed USB 2.0 PHY with on-chip transceiver (vs ATSAMS70N20B-ANT)
- Latest silicon revision B with errata fixes (vs ATSAME70N20A-ANT)
- 1 MB Flash with full dual-bank IAP support (vs ATSAME70N21B-CFN)
Notas de projeto
The ATSAME70N20B-ANT has separate analog (VDDPLL) and digital (VDDIO, VDDCORE) supply domains. Estimated: power dissipation at 300 MHz with all peripherals active is approximately 150 mA at 1.2 V core, so the core supply regulator must source at least 200 mA with adequate headroom. Place a 10 uF bulk + 100 nF decoupling capacitor pair on every VDDIO/VSSIO pair (5 groups in LQFP-100) to suppress switching noise. The PLL supply (VDDPLL) requires a ferrite bead or filter inductor from the same 3.3 V rail plus 100 nF + 10 uF decoupling.
Route the crystal traces (XIN, XOUT) as short as possible with a guard ring tied to analog ground to reduce EMI coupling. For designs using the high-speed USB PHY, follow the USB 2.0 High-Speed differential pair layout: 90 ohm differential impedance, length matching within 150 mils, no stubs. Place the 12 MHz crystal within 5 mm of XIN/XOUT with a continuous ground reference plane beneath. Estimated: at 480 Mbps USB High-Speed, trace mismatches greater than 0.5 mm between D+/D- can cause signal integrity failures.
The LQFP-100 package has a theta_JA of approximately 50 C/W on a standard 4-layer JEDEC test board. Estimated: at full 300 MHz operation with all peripherals active and 1.2 V core drawing 150 mA, power dissipation is about 180 mW, yielding a 9 C temperature rise above ambient - well within the -40C to +105C industrial range. For sealed enclosures without forced airflow, derate to 200 MHz operation or add thermal copper pours connected to the central thermal pad area beneath the package.
Do not leave unused pins floating - configure them as outputs or enable internal pull-ups to prevent shoot-through current in the I/O cells. The NRST reset pin requires a 100 nF capacitor to ground plus a 10 kohm pull-up; the internal weak pull-up alone is insufficient for noisy industrial environments. Estimated: omitting the external NRST capacitor can cause intermittent reset failures when the supply ramps slowly. Use the SAM-BA bootloader pins (PA0, PA1) with care - they share JTAG functions and must be reconfigured after programming.
Informações de conformidade
RoHS compliant and lead-free per Microchip product declaration. Industrial -40C to +105C temperature grade; for AEC-Q100 automotive applications use the SAM V71 family instead. Halogen-free mold compound and Pb-free terminal finish per Microchip environmental compliance documentation.
