ATSAME70N20B-ANT - ARM Cortex-M7 MCU 300MHz 1MB Flash LQFP-100 | Microchip
Référence : ATSAME70N20B-ANT ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour ATSAME70N20B-ANT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAME70N20B-ANT (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, Flash Memory, MSL Level, Core.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAME70N20B-AN
✅ Remplacement direct✓ En stock
$11.4 / unité
Voir la fiche technique →ATSAME70N20B-CNT
✅ Remplacement direct✓ En stock
$10.5 / unité
Voir la fiche technique →ATSAMS70N20B-ANT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAME70N20A-ANT
✅ Remplacement direct✓ En stock
$9.5 / unité
Voir la fiche technique →ATSAME70N21B-CFN
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32F767ZIT6
✅ Remplacement direct✓ En stock
$17.6 / unité
Voir la fiche technique →ATSAME70N20B-ANT Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier | 100-LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| GPIO Count | 75 |
| Température de fonctionnement | -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) |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (per LQFP standard) |
| AEC-Q100 | Not applicable (industrial-grade) |
| Lead-Free | Yes |
Configuration des broches de ATSAME70N20B-ANT
| Broche 1 | PB0 — General purpose I/O pin (multiplexed peripheral functions) |
| Broche 2 | PB1 — General purpose I/O pin |
| Broche 3 | PB2 — General purpose I/O pin |
| Broche 4 | PB3 — General purpose I/O pin |
| Broche 5 | VDDIO — I/O supply voltage |
| Broche 6 | VSSIO — I/O ground reference |
| Broche 7 | PB4 — General purpose I/O pin |
| Broche 8 | PB5 — General purpose I/O pin |
| Broche 9 | PB6 — General purpose I/O pin |
| Broche 10 | PB7 — General purpose I/O pin |
| Broche 11 | PB8 — General purpose I/O pin |
| Broche 12 | PB9 — General purpose I/O pin |
| Broche 13 | PB10 — General purpose I/O pin |
| Broche 14 | PB11 — General purpose I/O pin |
| Broche 15 | PB12 — General purpose I/O pin |
| Broche 16 | PB13 — General purpose I/O pin |
| Broche 17 | PB14 — General purpose I/O pin |
| Broche 18 | PB15 — General purpose I/O pin |
| Broche 19 | PA0 — General purpose I/O pin |
| Broche 20 | PA1 — General purpose I/O pin |
| Broche 21 | PA2 — General purpose I/O pin |
| Broche 22 | PA3 — General purpose I/O pin |
| Broche 23 | PA4 — General purpose I/O pin |
| Broche 24 | PA5 — General purpose I/O pin |
| Broche 25 | PA6 — General purpose I/O pin |
| Broche 26 | PA7 — General purpose I/O pin |
| Broche 27 | PA8 — General purpose I/O pin |
| Broche 28 | PA9 — General purpose I/O pin |
| Broche 29 | PA10 — General purpose I/O pin |
| Broche 30 | PA11 — General purpose I/O pin |
| Broche 31 | PA12 — General purpose I/O pin |
| Broche 32 | PA13 — General purpose I/O pin |
| Broche 33 | PA14 — General purpose I/O pin |
| Broche 34 | PA15 — General purpose I/O pin |
| Broche 35 | PA16 — General purpose I/O pin |
| Broche 36 | PA17 — General purpose I/O pin |
| Broche 37 | PA18 — General purpose I/O pin |
| Broche 38 | PA19 — General purpose I/O pin |
| Broche 39 | PA20 — General purpose I/O pin |
| Broche 40 | PA21 — General purpose I/O pin |
| Broche 41 | PA22 — General purpose I/O pin |
| Broche 42 | PA23 — General purpose I/O pin |
| Broche 43 | PA24 — General purpose I/O pin |
| Broche 44 | PA25 — General purpose I/O pin |
| Broche 45 | PA26 — General purpose I/O pin |
| Broche 46 | PA27 — General purpose I/O pin |
| Broche 47 | PA28 — General purpose I/O pin |
| Broche 48 | PA29 — General purpose I/O pin |
| Broche 49 | PA30 — General purpose I/O pin |
| Broche 50 | PA31 — General purpose I/O pin |
| Broche 51 | VDDCORE — Core voltage supply (1.2 V typical) |
| Broche 52 | VSS — Core ground reference |
| Broche 53 | NRST — Reset input (active low) |
| Broche 54 | XIN — Crystal oscillator input |
| Broche 55 | XOUT — Crystal oscillator output |
| Broche 56 | VDDPLL — PLL analog supply |
| Broche 57 | VSSPLL — PLL analog ground |
| Broche 58 | PC0 — General purpose I/O pin |
| Broche 59 | PC1 — General purpose I/O pin |
| Broche 60 | PC2 — General purpose I/O pin |
| Broche 61 | PC3 — General purpose I/O pin |
| Broche 62 | PC4 — General purpose I/O pin |
| Broche 63 | PC5 — General purpose I/O pin |
| Broche 64 | PC6 — General purpose I/O pin |
| Broche 65 | PC7 — General purpose I/O pin |
| Broche 66 | PC8 — General purpose I/O pin |
| Broche 67 | PC9 — General purpose I/O pin |
| Broche 68 | PC10 — General purpose I/O pin |
| Broche 69 | PC11 — General purpose I/O pin |
| Broche 70 | PC12 — General purpose I/O pin |
| Broche 71 | PC13 — General purpose I/O pin |
| Broche 72 | PC14 — General purpose I/O pin |
| Broche 73 | PC15 — General purpose I/O pin |
| Broche 74 | PC16 — General purpose I/O pin |
| Broche 75 | PC17 — General purpose I/O pin |
| Broche 76 | PC18 — General purpose I/O pin |
| Broche 77 | PC19 — General purpose I/O pin |
| Broche 78 | PC20 — General purpose I/O pin |
| Broche 79 | PC21 — General purpose I/O pin |
| Broche 80 | PC22 — General purpose I/O pin |
| Broche 81 | PC23 — General purpose I/O pin |
| Broche 82 | PC24 — General purpose I/O pin |
| Broche 83 | PC25 — General purpose I/O pin |
| Broche 84 | PC26 — General purpose I/O pin |
| Broche 85 | PC27 — General purpose I/O pin |
| Broche 86 | PC28 — General purpose I/O pin |
| Broche 87 | PC29 — General purpose I/O pin |
| Broche 88 | PC30 — General purpose I/O pin |
| Broche 89 | PC31 — General purpose I/O pin |
| Broche 90 | VDDIO — I/O supply voltage |
| Broche 91 | VSSIO — I/O ground reference |
| Broche 92 | PD0 — General purpose I/O pin |
| Broche 93 | PD1 — General purpose I/O pin |
| Broche 94 | PD2 — General purpose I/O pin |
| Broche 95 | PD3 — General purpose I/O pin |
| Broche 96 | PD4 — General purpose I/O pin |
| Broche 97 | PD5 — General purpose I/O pin |
| Broche 98 | PD6 — General purpose I/O pin |
| Broche 99 | PD7 — General purpose I/O pin |
| Broche 100 | PD8 — General purpose I/O pin |
Applications typiques
ATSAME70N20B-ANT convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAME70N20B-ANT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
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.
