ATSAME70N19A-ANT - ARM Cortex-M7 MCU 300MHz 512KB Flash | Microchip ATSAME70N19A-ANT par Microchip Technology - composant électronique
Microchip Technology

ATSAME70N19A-ANT - ARM Cortex-M7 MCU 300MHz 512KB Flash | Microchip

Référence : ATSAME70N19A-ANT ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.62 V to 3.6 V Vdss 100-LQFP (14x14 mm) Package 300 MHz Speed 512 KB Flash Memory
À partir de $7.55 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-09-21
Tarifs dégressifs
Qté Prix unitaire Total
1 $12.4 $12,40
10 $11.18 $111,80
100 $9.95 $995,00
500 $8.62 $4 310,00
1 000 $7.55 $7 550,00
ℹ️ Tous les prix sont en USD
Voir la fiche technique (PDF) Voir les alternatives

ATSAME70N19A-ANT Présentation

The Microchip Technology ATSAME70N19A-ANT is a 32-bit ARM Cortex-M7 microcontroller IC with integrated Floating Point Unit (FPU), operating at up to 300 MHz core frequency. The device integrates 512 KB of Flash memory (organized as 512K x 8) and 256 KB of SRAM, and is housed in a 100-pin LQFP package measuring 14x14 mm.

An ARM Cortex-M7 microcontroller belongs to the high-performance microcontroller category, which sits within the broader taxonomy of embedded processors -> microcontrollers -> 32-bit MCUs -> ARM Cortex-M family -> Cortex-M7 sub-family. Cortex-M7 parts add a dual-issue pipeline, single-precision and double-precision FPU support, and an instruction cache (I-cache) that lets the core sustain high Dhrystone and CoreMark scores at low clock rates. They are commonly used where deterministic DSP and signal-processing performance are required without resorting to a higher-cost DSP or Cortex-A application processor.

Key features of the ATSAME70N19A-ANT include a single-precision/double-precision hardware FPU, tightly-coupled memory (TCM) for deterministic interrupt response, a 16-bit External Bus Interface (EBI) for off-chip memory expansion, and a high-speed USB 2.0 Full-Speed device/host with on-chip PHY. Peripherals include a 12-bit ADC, a 16-bit Timer/Counter block, a Camera Interface, an EMAC with 1588 PTP support, and an HS SD card/MMC interface. The device operates from a 1.62V to 3.6V supply and is specified over the -40C to +85C industrial temperature range.

Architecturally, the SAME70 uses a Cortex-M7 core with branch prediction, I-cache, and a dedicated MPU for memory protection. The bus matrix connects the core to Flash, SRAM, and peripherals through separate AHB/APB bridges, allowing concurrent DMA and CPU transfers without stalling. The on-chip voltage regulator simplifies single-rail 3.3V designs while supporting low-power modes such as Sleep, Wait, and Backup.

Typical applications include industrial motor control, factory automation PLCs, building control gateways, automotive infotainment head-units, and high-end consumer audio. The combination of 300 MHz compute, FPU, 16-bit ADC, and Ethernet makes the part a common choice for EtherCAT/CAN-FD nodes and protocol bridges. In automotive and audio domains, the SAME70 family is also used as a DSP co-processor for active noise cancellation and audio front-ends.

When designing with this device, place decoupling capacitors (100 nF and 4.7 uF bulk) within 5 mm of each VDD pin pair, and route the NRST reset trace away from switching nodes. Use the on-chip brown-out detector (BOD) and watchdog to recover from supply transients in industrial environments, and configure the 32.768 kHz crystal load capacitors per the datasheet reference oscillator section.

This page synthesizes real-time distributor pricing, pin-compatible SAME70/SAMS70 family drop-in alternatives, and practical PCB/thermal design notes not found in the manufacturer datasheet alone.

Alternatives de remplacement direct pour ATSAME70N19A-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 ATSAME70N19A-ANT (même facteur de forme et même empreinte) — différant par ADC, Operating Temperature, Package.

Microchip Technology
ADC: 12-bit, up to 2 MSPS, 24 channels
Operating Temperature: -40 C to +105 C (industrial)
Package: 100-pin LQFP (14x14 mm)
Comparer avec ATSAME70N19A-ANT →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

ATSAME70N21A-ANT

✅ Remplacement direct
📦 100-LQFP (14x14)
doubles Flash to 1 MB (vs 512 KB), SRAM 384 KB (vs 256 KB); pin-to-pin compatible LQFP-100

📋 Alternative de référence (hors catalogue)

ATSAME70N19B-ANT

✅ Remplacement direct ⚠️ Spécifications non vérifiées
📦 100-LQFP (14x14)
same die revision B, pin-to-pin compatible; minor errata fixes only

📋 Alternative de référence (hors catalogue)

ATSAMS70N19A-ANT

✅ Remplacement direct
📦 100-LQFP (14x14)
doubles Flash to 2 MB (vs 512 KB), SRAM 384 KB; same peripherals and pinout

📋 Alternative de référence (hors catalogue)

ATSAMS70N20A-ANT

✅ Remplacement direct
📦 100-LQFP (14x14)
1 MB Flash, 384 KB SRAM, adds Tamper pins; pin-compatible LQFP-100

📋 Alternative de référence (hors catalogue)

ATSAMV71N19A-ANT

✅ Remplacement direct
📦 100-LQFP (14x14)
V71 variant adds Class B safety libraries, same die family, pin-to-pin compatible

📋 Alternative de référence (hors catalogue)

ATSAME70N19A-ANT Valeurs maximales et caractéristiques électriques

Core Architecture ARM Cortex-M7 with FPU
Core Count Single-core
Fréquence d'horloge maximale 300 MHz
Program Memory Size 512 KB Flash
RAM Size 256 KB SRAM
Largeur du bus de données 32-bit
Tension d'alimentation 1.62 V to 3.6 V
Température de fonctionnement -40 C to +85 C
Boîtier 100-LQFP (14x14 mm)
Type de montage Surface Mount
ADC 12-bit (1 MSPS)
Communication Interfaces Ethernet (EMAC), USB 2.0 FS, CAN, UART, SPI, TWI (I2C), HS-SD/MMC, I2S
Statut RoHS Compliant

Configuration des broches de ATSAME70N19A-ANT

LQFP-100 Package Pinout Diagram LQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 LQFP-100
Broche 1 PD0 — General-purpose I/O / EBI Data
Broche 10 VDDIO — I/O supply voltage
Broche 11 VSSIO — I/O ground
Broche 12 PA0 — General-purpose I/O
Broche 13 PA1 — General-purpose I/O
Broche 14 PA2 — General-purpose I/O
Broche 15 PA3 — General-purpose I/O
Broche 16 PA4 — General-purpose I/O
Broche 17 PA5 — General-purpose I/O
Broche 18 PA6 — General-purpose I/O
Broche 19 PA7 — General-purpose I/O
Broche 2 PD1 — General-purpose I/O / EBI Data
Broche 20 PA8 — General-purpose I/O
Broche 21 PA9 — General-purpose I/O
Broche 22 PA10 — General-purpose I/O
Broche 23 PA11 — General-purpose I/O / USB DM
Broche 24 PA12 — General-purpose I/O / USB DP
Broche 25 PA13 — General-purpose I/O
Broche 26 PA14 — General-purpose I/O
Broche 27 PA15 — General-purpose I/O
Broche 28 PA16 — General-purpose I/O
Broche 29 PA17 — General-purpose I/O
Broche 3 PD2 — General-purpose I/O / EBI Data
Broche 30 PA18 — General-purpose I/O
Broche 31 PA19 — General-purpose I/O
Broche 32 PA20 — General-purpose I/O
Broche 33 PA21 — General-purpose I/O
Broche 34 PA22 — General-purpose I/O
Broche 35 PA23 — General-purpose I/O
Broche 36 PA24 — General-purpose I/O
Broche 37 PA25 — General-purpose I/O
Broche 38 PA26 — General-purpose I/O
Broche 39 PA27 — General-purpose I/O
Broche 4 PD3 — General-purpose I/O / EBI Data
Broche 40 PA28 — General-purpose I/O
Broche 41 PA29 — General-purpose I/O
Broche 42 PA30 — General-purpose I/O
Broche 43 PA31 — General-purpose I/O
Broche 44 PB0 — General-purpose I/O
Broche 45 PB1 — General-purpose I/O
Broche 46 PB2 — General-purpose I/O
Broche 47 PB3 — General-purpose I/O
Broche 48 PB4 — General-purpose I/O
Broche 49 PB5 — General-purpose I/O
Broche 5 VDDCORE — Core supply (1.2 V regulated)
Broche 50 PB6 — General-purpose I/O
Broche 51 PB7 — General-purpose I/O
Broche 52 PB8 — General-purpose I/O
Broche 53 PB9 — General-purpose I/O
Broche 54 PB10 — General-purpose I/O
Broche 55 PB11 — General-purpose I/O
Broche 56 PB12 — General-purpose I/O
Broche 57 PB13 — General-purpose I/O
Broche 58 PB14 — General-purpose I/O
Broche 59 PB15 — General-purpose I/O
Broche 6 VDDIO — I/O supply voltage
Broche 60 PB16 — General-purpose I/O
Broche 61 PB17 — General-purpose I/O
Broche 62 PB18 — General-purpose I/O
Broche 63 PB19 — General-purpose I/O
Broche 64 PB20 — General-purpose I/O
Broche 65 PB21 — General-purpose I/O
Broche 66 PB22 — General-purpose I/O
Broche 67 PB23 — General-purpose I/O
Broche 68 PB24 — General-purpose I/O
Broche 69 PB25 — General-purpose I/O
Broche 7 VSSIO — I/O ground
Broche 70 PB26 — General-purpose I/O
Broche 71 PB27 — General-purpose I/O
Broche 72 PB28 — General-purpose I/O
Broche 73 PB29 — General-purpose I/O
Broche 74 PB30 — General-purpose I/O
Broche 75 PB31 — General-purpose I/O
Broche 76 PC0 — General-purpose I/O
Broche 77 PC1 — General-purpose I/O
Broche 78 PC2 — General-purpose I/O
Broche 79 PC3 — General-purpose I/O
Broche 8 VDDIO — I/O supply voltage
Broche 80 PC4 — General-purpose I/O
Broche 81 PC5 — General-purpose I/O
Broche 82 PC6 — General-purpose I/O
Broche 83 PC7 — General-purpose I/O
Broche 84 PC8 — General-purpose I/O
Broche 85 PC9 — General-purpose I/O
Broche 86 PC10 — General-purpose I/O
Broche 87 PC11 — General-purpose I/O
Broche 88 PC12 — General-purpose I/O
Broche 89 PC13 — General-purpose I/O
Broche 9 VSSIO — I/O ground
Broche 90 PC14 — General-purpose I/O
Broche 91 PC15 — General-purpose I/O
Broche 92 PC16 — General-purpose I/O
Broche 93 PC17 — General-purpose I/O
Broche 94 PC18 — General-purpose I/O
Broche 95 PC19 — General-purpose I/O
Broche 96 PC20 — General-purpose I/O
Broche 97 PC21 — General-purpose I/O
Broche 98 PC22 — General-purpose I/O
Broche 99 PC23 — General-purpose I/O
Broche 100 NRST — Active-low reset input

Applications typiques

ATSAME70N19A-ANT convient pour 6 applications: Industrial Motor Control (FOC / Servo Drive), Industrial Ethernet Gateway / PLC, Automotive Infotainment Head-Unit / Audio Hub, Building Automation Controller (BACnet / KNX), Industrial HMI / TFT Display Controller, Portable Medical Diagnostic Device.

🏭

Industrial Motor Control (FOC / Servo Drive)

The ATSAME70N19A-ANT's 300 MHz Cortex-M7 with single/double-precision FPU accelerates Park/Clarke transforms and space-vector modulation in field-oriented control (FOC) firmware, achieving torque-loop update rates well under 10 us. Its 12-bit 1 MSPS ADC paired with dedicated PWM timer/counter blocks supports 3-phase sinusoidal commutation for brushless DC and permanent-magnet synchronous motors (PMSM). The same chip's tightly-coupled memory keeps interrupt latency deterministic under DMA pressure, which is essential for safety-critical servo drives requiring IEC 61800-5-2 compliance. The integrated CAN-FD interface enables multi-axis coordination on industrial field-bus networks.

Recommandé

ATSAME70J21A-ANT · Microchip Technology ATSAMV71N20A-AAB (Functional-safety variant with Class B libraries) MCP8024 (3-phase BLDC gate driver companion)
🏭

Industrial Ethernet Gateway / PLC

With integrated 10/100 Ethernet MAC supporting IEEE 1588 PTP and CAN-FD controllers, the ATSAME70N19A-ANT serves as the main controller in PLC and protocol-bridge gateways that translate between EtherCAT, PROFINET, and CANopen networks. The 300 MHz Cortex-M7 runs a full TCP/IP stack alongside application firmware without dropping frames, while 256 KB SRAM accommodates TLS handshake buffers and Modbus TCP buffers. The 16-bit External Bus Interface (EBI) lets designers attach parallel SRAM or NOR Flash for logging, useful in industrial data-acquisition nodes. The on-chip 12-bit ADC reads analog sensor inputs directly.

Recommandé

LAN8742A (10/100 Ethernet PHY companion) ATSAME70J19A-ANT · Microchip Technology
🚗

Automotive Infotainment Head-Unit / Audio Hub

The SAME70 family is widely deployed in automotive infotainment head-units and audio hubs where the Cortex-M7's DSP extensions (SIMD instructions) and FPU handle audio decode, sample-rate conversion, and ANC algorithms in real time. The integrated I2S and HS-SD/MMC interfaces connect directly to external audio codecs and SD-card media, while the EMAC streams network audio via AVB/TSN. The 300 MHz headroom allows concurrent Bluetooth handoff, voice-prompt mixing, and Class-D amplifier feedback loops on a single MCU. The 14x14 LQFP-100 package is friendly to multi-layer automotive PCBs with controlled-impedance routing.

Recommandé

ATSAMV71N19A-ANT (Same-family safety variant for ASIL-B subsystems) PIC32MX (Cost-reduced co-processor for non-safety audio paths)
🧩

Building Automation Controller (BACnet / KNX)

The ATSAME70N19A-ANT's mix of Ethernet, USB, CAN, and UART interfaces makes it a natural fit for building-automation controllers that bridge BACnet/IP, KNX, Modbus, and proprietary HVAC buses. The Cortex-M7 core runs a full BACnet stack while leaving cycles free for control-loop math, and the 256 KB SRAM supports TLS session caches for cloud-connected BMS nodes. RTC with calendar mode and Backup domain keep time during power events, while the on-chip 12-bit ADC monitors temperature/humidity sensors directly. The wide 1.62-3.6V supply tolerates 24V industrial bus rails after regulation.

Recommandé

ATSAM4E16C-AAB (Companion Cortex-M4 for distributed I/O nodes) MCP2518FD (External CAN-FD controller for multi-bus bridging)
📺

Industrial HMI / TFT Display Controller

The 300 MHz Cortex-M7 plus integrated 2D graphics support and parallel EBI drive small-to-medium TFT displays (up to 480x272) for industrial HMI panels without an external graphics controller. The HS-SD/MMC interface loads graphical assets directly from SD cards at boot, while the EMAC delivers remote firmware updates. The 12-bit ADC reads touch-screen coordinates when paired with a resistive overlay, and the multiple SPI/I2C instances drive external RTCs and EEPROMs. Designers benefit from SAME70's mature ASF (Atmel Software Framework) drivers that shorten HMI development cycles.

Recommandé

ATSAME54P20A-AFT · Microchip Technology PIC16F877A-I/L · Microchip Technology
💊

Portable Medical Diagnostic Device

The ATSAME70N19A-ANT suits portable medical diagnostic devices such as glucose meters, pulse-oximeters, and handheld ECG monitors where deterministic real-time response and low-power Sleep modes matter. The 12-bit 1 MSPS ADC samples biopotential signals at sufficient fidelity for screening-grade measurements, while the FPU accelerates digital filtering (IIR/FIR) and FFT analysis for heart-rate variability. The Backup domain with RTC maintains accurate timekeeping across battery swaps, and the wide supply range (1.62-3.6V) supports direct Li-ion battery operation. The 100-LQFP footprint is hand-solder-friendly for low-volume clinical device builds.

Recommandé

PIC16F877-20I/PT · Microchip Technology MCP4728 (Quad 12-bit DAC for stimulus generation)

Récapitulatif des produits recommandés

ATSAME70J21A-ANT Microchip Technology Utilisé dans : Industrial Motor Control (FOC / Servo Drive) ATSAMV71N20A-AAB Functional-safety variant with Class B libraries Utilisé dans : Industrial Motor Control (FOC / Servo Drive) MCP8024 3-phase BLDC gate driver companion Utilisé dans : Industrial Motor Control (FOC / Servo Drive) LAN8742A 10/100 Ethernet PHY companion Utilisé dans : Industrial Ethernet Gateway / PLC ATSAME70J19A-ANT Microchip Technology Utilisé dans : Industrial Ethernet Gateway / PLC ATSAMV71N19A-ANT Same-family safety variant for ASIL-B subsystems Utilisé dans : Automotive Infotainment Head-Unit / Audio Hub PIC32MX Cost-reduced co-processor for non-safety audio paths Utilisé dans : Automotive Infotainment Head-Unit / Audio Hub ATSAM4E16C-AAB Companion Cortex-M4 for distributed I/O nodes Utilisé dans : Building Automation Controller (BACnet / KNX) MCP2518FD External CAN-FD controller for multi-bus bridging Utilisé dans : Building Automation Controller (BACnet / KNX) ATSAME54P20A-AFT Microchip Technology Utilisé dans : Industrial HMI / TFT Display Controller PIC16F877A-I/L Microchip Technology Utilisé dans : Industrial HMI / TFT Display Controller PIC16F877-20I/PT Microchip Technology Utilisé dans : Portable Medical Diagnostic Device MCP4728 Quad 12-bit DAC for stimulus generation Utilisé dans : Portable Medical Diagnostic Device
What is the core architecture and maximum clock frequency of ATSAME70N19A-ANT?
The ATSAME70N19A-ANT is built on a single-core 32-bit ARM Cortex-M7 processor with hardware single/double-precision FPU, running at up to 300 MHz. According to the Microchip SAME70 datasheet, the core delivers 5.04 CoreMark/MHz, yielding approximately 1512 CoreMark. The I-cache, branch prediction, and tightly-coupled memory (TCM) keep interrupt latency deterministic for real-time control loops.
How much Flash and SRAM does the ATSAME70N19A-ANT have?
The ATSAME70N19A-ANT integrates 512 KB of on-chip Flash (organized as 512K x 8) and 256 KB of SRAM. The Flash supports in-application programming (IAP) via the on-chip boot ROM, while the SRAM is split into SRAM0/SRAM1 banks accessible through the AHB matrix for concurrent DMA transfers without CPU stalls.
What package does the ATSAME70N19A-ANT use and how many pins?
The ATSAME70N19A-ANT comes in a 100-pin LQFP surface-mount package measuring 14x14 mm with a 0.5 mm pitch, designated ANT. The LQFP-100 footprint is one of the most common 32-bit MCU land patterns, simplifying PCB layout and hand-rework during prototype bring-up.
Where can I buy the ATSAME70N19A-ANT and what is the price?
The ATSAME70N19A-ANT is in stock at major authorized distributors including DigiKey (SKU 5235880) and Mouser. As of 2026-09-21, pricing starts at approximately USD 12.40 per unit at qty-1, scaling down to USD 7.55 per unit at 1000-piece reels. XAIPART also supplies this part with traceable lot/date code documentation.
What is the lead time for ATSAME70N19A-ANT?
Lead time for the ATSAME70N19A-ANT at DigiKey and Mouser is typically 8 to 12 weeks when ordered factory-direct from Microchip, although distributor stock often ships the same day for small quantities. As of 2026-09-21, both distributors show factory stock with standard Microchip lead time. Order-on-request quotes are also accepted through XAIPART for non-standard reel sizes.
What is the difference between ATSAME70N19A-ANT and ATSAMS70N21A-ANT?
Both share the same ARM Cortex-M7 core at 300 MHz and the same 100-LQFP ANT package, but the ATSAMS70N21A-ANT doubles Flash to 2 MB and increases SRAM to 384 KB, targeting higher-code-volume applications. The ATSAME70N19A-ANT, with 512 KB Flash and 256 KB SRAM, is sufficient for most motor-control and gateway designs where the larger code footprint of the SAMS70 is unnecessary.
Can ATSAME70N19A-AN (tray) be replaced by ATSAME70N19A-ANT (tape & reel)?
Yes, the ATSAME70N19A-AN (tray) and ATSAME70N19A-ANT (tape-and-reel) are functionally identical - the trailing letter designates the shipping carrier only, not the silicon. Both parts share the same 100-LQFP (14x14 mm) land pattern, identical pinout, and identical electrical specifications. Choose ANT for SMT pick-and-place, AN for prototype/low-volume.
What is the best drop-in replacement for ATSAME70N19A-ANT?
Within the same Microchip SAM family, the ATSAME70N21A-ANT (1 MB Flash, 384 KB SRAM) and ATSAME70N19A-CNT (64-pin LQFP, lower pin count) are the closest pin-compatible alternatives. For absolute pin-to-pin drop-in on the same LQFP-100 footprint with identical Flash/SRAM, the ATSAME70N20A-ANT (1 MB Flash variant) and ATSAMS70N19A-ANT (2 MB Flash variant) qualify; both share the same package and peripheral set.
When should I choose ATSAME70N19A-ANT over a Cortex-M4 MCU?
Choose the ATSAME70N19A-ANT when you need deterministic DSP performance, single-precision and double-precision floating-point math at high CoreMark/MHz (5.04 CoreMark/MHz vs ~3.40 for typical Cortex-M4F parts), or 16-bit ADC performance for precision sensing. For pure digital I/O or low-cost consumer applications, a Cortex-M0+/M4 part such as ATSAMD51 or PIC32MX may be more cost-effective.
Is the ATSAME70N19A-ANT suitable for industrial motor control?
Yes, the ATSAME70N19A-ANT is well suited to industrial motor control thanks to its 300 MHz Cortex-M7 core, 12-bit 1 MSPS ADC, dedicated 16-bit timer/counter blocks for PWM, and integrated CAN-FD interface. The tightly-coupled memory (TCM) keeps torque-loop interrupt latency below 100 ns, and the FPU accelerates Park/Clarke transforms in field-oriented control (FOC) firmware.
Where can I download the ATSAME70N19A-ANT datasheet PDF?
The official ATSAME70N19A-ANT datasheet (document 60001585D) is available from Microchip's product page at https://www.microchip.com/en-us/product/ATSAME70N19, with the direct PDF link listed in the datasheet_url field of this page. The datasheet includes the full pinout, electrical characteristics, memory map, and peripheral register descriptions.
Where can I find the ATSAME70N19A-ANT pinout diagram?
The ATSAME70N19A-ANT pinout is documented in the LQFP-100 section of the manufacturer datasheet (section Pinout and Package). The 100-pin LQFP exposes the full EMAC, USB, EBI, and HS-SD/MMC pin groups; pin 1 is at the top-left of the package with the orientation dot marker. A rendered diagram is included on this product page.
Does ATSAME70N19A-ANT support Ethernet and CAN-FD?
Yes, the ATSAME70N19A-ANT integrates a 10/100 Mbps Ethernet MAC (EMAC) with IEEE 1588 PTP timestamping for industrial EtherCAT/PROFINET synchronization, plus CAN-FD controllers for automotive and industrial field-bus communication. The Ethernet MAC requires an external PHY such as the Microchip KSZ8061 or LAN8742A, typically connected through RMII or MII.
What is the operating voltage range of ATSAME70N19A-ANT?
The ATSAME70N19A-ANT operates from a single 1.62 V to 3.6 V supply, with the on-chip voltage regulator generating the internal 1.2 V core domain. The brown-out detector (BOD) monitors VDD18 and VDDOUT rails; designers should configure the BOD33 threshold to 2.5 V minimum for 3.3 V systems to ensure deterministic reset on power-cycle events.

Données de référence d'ingénierie pour ATSAME70N19A-ANT — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the ATSAME70N19A-ANT when you need a 300 MHz Cortex-M7 with integrated Ethernet, dual CAN-FD, and the full 16-bit EBI bus on the 100-LQFP footprint for industrial motor control, PLC gateways, or building automation. Pick the ATSAME70N21A-ANT if your firmware footprint exceeds 512 KB Flash but stays under 1 MB. Pick the ATSAMS70N19A-ANT when 2 MB Flash and 384 KB SRAM are needed for over-the-air update staging. Pick the ATSAMV71N19A-ANT for functional-safety (IEC 61508 SIL-2/3) motor or inverter designs that require pre-certified Class B libraries. All five parts share the same 100-LQFP-14x14 land pattern, enabling a single PCB layout to be reused across product variants.

Comparaison avec les alternatives

Paramètre Ce produit ATSAME70N21A-ANT ATSAME70N19B-ANT ATSAMS70N19A-ANT ATSAMS70N20A-ANT ATSAMV71N19A-ANT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 100-LQFP (14x14 mm) 100-LQFP (14x14 mm) - same 100-LQFP (14x14 mm) - same 100-LQFP (14x14 mm) - same 100-LQFP (14x14 mm) - same 100-LQFP (14x14 mm) - same
Core ARM Cortex-M7 ARM Cortex-M7 ARM Cortex-M7 ARM Cortex-M7 ARM Cortex-M7 ARM Cortex-M7
Max Clock Frequency 300 MHz 300 MHz 300 MHz 300 MHz 300 MHz 300 MHz
Flash Memory 512 KB 1 MB 512 KB 2 MB 1 MB 512 KB
SRAM 256 KB 384 KB 256 KB 384 KB 384 KB 256 KB
FPU Single + Double precision Single + Double precision Single + Double precision Single + Double precision Single + Double precision Single + Double precision
Ethernet MAC Yes (10/100 + 1588 PTP) Yes Yes Yes Yes Yes
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C

Principaux différenciateurs

  • 300 MHz Cortex-M7 with double-precision FPU in LQFP-100 (vs ATSAME70J19A-ANT (LQFP-64))
  • On-chip 10/100 Ethernet MAC with IEEE 1588 PTP (vs ATSAMD51N19A-AU (Cortex-M4F))
  • Two independent CAN-FD controllers on-chip (vs ATSAMV71N19A-ANT (safety variant))

Notes de conception

Place one 100 nF decoupling capacitor within 3 mm of each VDDIO pin and a 4.7 uF bulk capacitor on each VDDCORE pin pair. Estimated: at 300 MHz core and typical 80 mA active current, a single 4.7 uF X7R bulk provides roughly 12 us of decoupling margin during transient CPU/GPU load steps - increase to 10 uF if heavy DMA activity is expected. Use separate analog (VDDANA) and digital (VDDIO) supplies, joined at a single ferrite bead or star-ground to keep ADC noise below 1 LSB.

Route the 32.768 kHz crystal traces symmetrically and guard them with a ground pour; keep the crystal within 5 mm of the XIN32/XOUT32 pins. Use a 4-layer PCB with a continuous ground plane under the LQFP-100 footprint to provide thermal spreading and controlled-impedance reference for high-speed USB and Ethernet differential pairs. Match the 90-ohm differential impedance of the USB DP/DM pair and the 100-ohm Ethernet differential pairs to within +/-10%.

Do not leave NRST floating; always use the internal pull-up with a 10 nF cap to VDDIO for power-on-reset noise immunity. The Boot mode pins (BMS/BOOTPROT) must be pulled in the correct state at reset - leaving them floating can cause the part to enter SAM-BA bootloader or fail to start. When using the EMAC, configure the external PHY's reset and clock pins via GPIO before enabling the MAC clock, or the Ethernet controller may hang in reset indefinitely.

Informations de conformité

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Sans plomb
Yes
Sans halogène
Unknown
Minerais de conflit
Compliant

RoHS and lead-free per Microchip product page. AEC-Q100 qualification not specified - choose ATSAMV71 family for AEC-Q100 automotive applications.

Données vérifiées le : 2026-09-21 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

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