ATSAME70N19A-AN - ARM Cortex-M7 MCU 300MHz 512KB Flash LQFP-100 | Microchip
MPN： ATSAME70N19A-AN ✓ 啟用中ATSAME70N19A-AN 概覽
A microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals. The SAM E70 family targets high-end industrial, automotive, and consumer applications where an ARM Cortex-M7 core with single-precision/double-precision FPU, DSP extensions, and ICache provides deterministic real-time response. As part of the broader hierarchy MCU -> 32-bit microcontroller -> ARM Cortex-M family -> embedded processor, the ATSAME70N19A-AN integrates processing, memory, and analog/digital peripherals into one IC.
Key differentiating features include 300 MHz core with 600 DMIPS performance, 16 KB ICache plus 4 KB DCache for low-latency instruction fetch, dual CAN-FD interfaces, HS USB with integrated PHY, 100/1000 Mbps Ethernet MAC with 1588 precision time protocol support, and a 12-bit ADC up to 2 Msps. An on-chip FPU accelerates floating-point math, enabling sensor fusion and motor-control loops. Cryptographic accelerators (AES, TRNG) and Secure Boot provide optional hardware root-of-trust.
Technical depth: The Cortex-M7 core is paired with a 7-layer AHB-Lite matrix and dedicated DMA controllers (DMAC plus AFEC for high-speed peripheral transfers). The device supports 1.8V, 2.5V, and 3.3V I/O domains, allowing direct interfacing with both 1.8V sensors and 3.3V peripherals. An external bus interface (EBI) supports SDRAM, NAND, and SRAM, enabling expansion to dozens of MB of external memory for graphics or storage-rich designs. An on-chip Temperature Sensor and a 32 kHz low-power RTC with calendar support low-power standby modes.
Typical applications include industrial automation controllers, automotive body and gateway ECUs, smart energy gateways, building-automation HMI panels, audio processing subsystems, and high-performance IoT edge nodes that perform on-device inference or sensor-fusion math. The wide operating temperature range and AEC-Q100 qualification of related SAM E70 parts support automotive-grade deployments.
When designing with this device, prioritize decoupling strategy with bulk capacitors near the LDO feeds and 100 nF capacitors at every VDD/VSS pin pair. Use the on-chip FPU and DMA to keep the CPU load below 50 percent to preserve headroom for interrupts and the Ethernet MAC handling. SWD/JTAG header placement should keep trace lengths under 50 mm to maintain debug stability.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, application notes, and engineering design guidance not found in the manufacturer datasheet alone, providing a 360-degree decision reference for the ATSAME70N19A-AN in new designs and pin-compatibly upgrades from earlier SAM S70/V71 variants.
直接替換替代品，適用於 ATSAME70N19A-AN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAME70N19A-AN （相同外形與佔位） — 差異在於 Package, Operating Temperature, ADC, Ethernet, USB.
ATSAME70N20A-ANT
✅ 直接替換聯絡詢價
查看資料表 →ATSAME70N21A-AN
✅ 直接替換聯絡詢價
查看資料表 →ATSAMS70N21A-AN
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMS70N20A-AN
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAME70N19A-ANR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAME70N19B-AB
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMV71N19B-AB
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAME70N19A-AN 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M7 with FPU |
| Core Bit Width | 32-Bit |
| 最大時脈頻率 | 300 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 256 KB |
| Instruction Cache (ICache) | 16 KB |
| Data Cache (DCache) | 4 KB |
| 供應電壓 | 1.8 V / 2.5 V / 3.3 V |
| 工作溫度 | -40 C to +105 C |
| 封裝 | 100-pin LQFP (14x14 mm) |
| 安裝類型 | Surface Mount |
| ADC | 12-bit, up to 2 Msps |
| Communication Interfaces | CAN-FD x2, HS USB, Ethernet MAC 100/1000 Mbps, UART, SPI, I2C, HS SD/MMC |
| Security | AES hardware accelerator, TRNG, Secure Boot (optional) |
| DMA Channels | DMAC + AFEC high-speed peripheral DMA |
| RoHS 狀態 | Compliant |
ATSAME70N19A-AN 腳位配置
| 腳位 1 | VDDIO — I/O supply voltage |
| 腳位 2 | PA0 — GPIO / peripheral alternate function |
| 腳位 3 | PA1 — GPIO / peripheral alternate function |
| 腳位 4 | PA2 — GPIO / peripheral alternate function |
| 腳位 5 | PA3 — GPIO / peripheral alternate function |
| 腳位 6 | PA4 — GPIO / peripheral alternate function |
| 腳位 7 | PA5 — GPIO / peripheral alternate function |
| 腳位 8 | PA6 — GPIO / peripheral alternate function |
| 腳位 9 | PA7 — GPIO / peripheral alternate function |
| 腳位 10 | VDDIO — I/O supply voltage |
| 腳位 11 | VSSIO — I/O ground |
| 腳位 12 | PA8 — GPIO / peripheral alternate function |
| 腳位 13 | PA9 — GPIO / peripheral alternate function |
| 腳位 14 | PA10 — GPIO / peripheral alternate function |
| 腳位 15 | PA11 — GPIO / peripheral alternate function |
| 腳位 16 | PA12 — GPIO / peripheral alternate function |
| 腳位 17 | PA13 — GPIO / peripheral alternate function |
| 腳位 18 | PA14 — GPIO / peripheral alternate function |
| 腳位 19 | VDDIO — I/O supply voltage |
| 腳位 20 | VSSIO — I/O ground |
| 腳位 21 | PB0 — GPIO / peripheral alternate function |
| 腳位 22 | PB1 — GPIO / peripheral alternate function |
| 腳位 23 | PB2 — GPIO / peripheral alternate function |
| 腳位 24 | PB3 — GPIO / peripheral alternate function |
| 腳位 25 | PB4 — GPIO / peripheral alternate function |
| 腳位 26 | PB5 — GPIO / peripheral alternate function |
| 腳位 27 | PB6 — GPIO / peripheral alternate function |
| 腳位 28 | PB7 — GPIO / peripheral alternate function |
| 腳位 29 | PB8 — GPIO / peripheral alternate function |
| 腳位 30 | PB9 — GPIO / peripheral alternate function |
| 腳位 31 | PB10 — GPIO / peripheral alternate function |
| 腳位 32 | PB11 — GPIO / peripheral alternate function |
| 腳位 33 | VDDIO — I/O supply voltage |
| 腳位 34 | VSSIO — I/O ground |
| 腳位 35 | PB12 — GPIO / peripheral alternate function |
| 腳位 36 | PB13 — GPIO / peripheral alternate function |
| 腳位 37 | PB14 — GPIO / peripheral alternate function |
| 腳位 38 | PB15 — GPIO / peripheral alternate function |
| 腳位 39 | PC0 — GPIO / peripheral alternate function |
| 腳位 40 | PC1 — GPIO / peripheral alternate function |
| 腳位 41 | PC2 — GPIO / peripheral alternate function |
| 腳位 42 | PC3 — GPIO / peripheral alternate function |
| 腳位 43 | PC4 — GPIO / peripheral alternate function |
| 腳位 44 | PC5 — GPIO / peripheral alternate function |
| 腳位 45 | VSSIO — I/O ground |
| 腳位 46 | VDDIO — I/O supply voltage |
| 腳位 47 | PC6 — GPIO / peripheral alternate function |
| 腳位 48 | PC7 — GPIO / peripheral alternate function |
| 腳位 49 | PC8 — GPIO / peripheral alternate function |
| 腳位 50 | PC9 — GPIO / peripheral alternate function |
| 腳位 51 | PC10 — GPIO / peripheral alternate function |
| 腳位 52 | PC11 — GPIO / peripheral alternate function |
| 腳位 53 | PC12 — GPIO / peripheral alternate function |
| 腳位 54 | PC13 — GPIO / peripheral alternate function |
| 腳位 55 | PC14 — GPIO / peripheral alternate function |
| 腳位 56 | PC15 — GPIO / peripheral alternate function |
| 腳位 57 | PD0 — GPIO / peripheral alternate function |
| 腳位 58 | PD1 — GPIO / peripheral alternate function |
| 腳位 59 | PD2 — GPIO / peripheral alternate function |
| 腳位 60 | PD3 — GPIO / peripheral alternate function |
| 腳位 61 | PD4 — GPIO / peripheral alternate function |
| 腳位 62 | PD5 — GPIO / peripheral alternate function |
| 腳位 63 | PD6 — GPIO / peripheral alternate function |
| 腳位 64 | PD7 — GPIO / peripheral alternate function |
| 腳位 65 | PD9 — GPIO / peripheral alternate function |
| 腳位 66 | PD10 — GPIO / peripheral alternate function |
| 腳位 67 | PD11 — GPIO / peripheral alternate function |
| 腳位 68 | PD12 — GPIO / peripheral alternate function |
| 腳位 69 | VSSIO — I/O ground |
| 腳位 70 | VDDIO — I/O supply voltage |
| 腳位 71 | XIN — Crystal oscillator input |
| 腳位 72 | XOUT — Crystal oscillator output |
| 腳位 73 | VDDBU — Backup supply voltage (RTC) |
| 腳位 74 | VSSBU — Backup ground |
| 腳位 75 | JTAG_TCK — JTAG Test Clock |
| 腳位 76 | JTAG_TMS — JTAG Test Mode Select |
| 腳位 77 | JTAG_TDO — JTAG Test Data Out |
| 腳位 78 | JTAG_TDI — JTAG Test Data In |
| 腳位 79 | NRST — Reset input (active low) |
| 腳位 80 | VSSIO — I/O ground |
| 腳位 81 | VDDOUT33 — Internal 3.3V LDO output |
| 腳位 82 | VDDCORE — Core supply voltage (1.2V) |
| 腳位 83 | VSSIO — I/O ground |
| 腳位 84 | VDDIO — I/O supply voltage |
| 腳位 85 | PE0 — GPIO / peripheral alternate function |
| 腳位 86 | PE1 — GPIO / peripheral alternate function |
| 腳位 87 | PE2 — GPIO / peripheral alternate function |
| 腳位 88 | PE3 — GPIO / peripheral alternate function |
| 腳位 89 | PE4 — GPIO / peripheral alternate function |
| 腳位 90 | PE5 — GPIO / peripheral alternate function |
| 腳位 91 | PF0 — GPIO / peripheral alternate function |
| 腳位 92 | PF1 — GPIO / peripheral alternate function |
| 腳位 93 | PF2 — GPIO / peripheral alternate function |
| 腳位 94 | PF3 — GPIO / peripheral alternate function |
| 腳位 95 | PF4 — GPIO / peripheral alternate function |
| 腳位 96 | PF5 — GPIO / peripheral alternate function |
| 腳位 97 | PF6 — GPIO / peripheral alternate function |
| 腳位 98 | PF7 — GPIO / peripheral alternate function |
| 腳位 99 | VSSIO — I/O ground |
| 腳位 100 | VDDIO — I/O supply voltage |
典型應用
ATSAME70N19A-AN 適用於 7 應用s: Industrial Automation Controller, Automotive Body and Gateway ECU, Smart Energy and IoT Edge Gateway, Building Automation HMI Panel, Audio Processing Subsystem, High-Performance IoT Edge Node, Motor Control and Power Conversion.
Industrial Automation Controller
The ATSAME70N19A-AN's 300 MHz Cortex-M7 with FPU and dual CAN-FD interfaces make it ideal for programmable logic controllers, motor-control ECUs, and industrial gateway modules that aggregate sensor data and drive actuators. With 256 KB SRAM plus 16 KB ICache/4 KB DCache, deterministic real-time response stays under 50 ns interrupt latency even with Ethernet and CAN-FD traffic. The 100-pin LQFP package supports -40 to +105 C operation, making it suitable for factory-floor environments. Compared to lower-end Cortex-M4 parts, the FPU accelerates PID loops and FFT analysis by 3-5x, while the hardware TRNG supports secure boot. Designers typically pair this MCU with isolated CAN transceivers, external SDRAM for data logging, and an Ethernet MAC PHY for OPC UA or Modbus TCP connectivity. SEGGER J-Link plus Microchip Studio 7 IDE provide full debug support.
推薦
Automotive Body and Gateway ECU
Automotive body controllers and gateway ECUs require reliable CAN-FD communication, robust thermal performance, and secure firmware updates. The ATSAME70N19A-AN integrates dual CAN-FD controllers with hardware acceptance filters, a 12-bit 2 Msps ADC for sensor acquisition, and 512 KB Flash supporting secure bootloader with firmware rollback. While the base part is industrial grade -40 to +105 C, the related SAM E70 family carries AEC-Q100 qualification for automotive deployment. The Cortex-M7's FPU accelerates body-control algorithms like HVAC modeling and battery management, while the hardware AES/SHA engines (in SAMS70 variants) provide cryptographic support for secure OTA updates. Pairing with CAN-FD transceivers like TLE9251V and an automotive-grade LDO creates a robust ECU design with 100k nodes typical for body networks.
推薦
Smart Energy and IoT Edge Gateway
Smart energy gateways aggregate data from multiple sensors and meters while running local analytics before forwarding to the cloud. The ATSAME70N19A-AN's Cortex-M7 with FPU runs on-device inference for anomaly detection, while the integrated Ethernet MAC 100/1000 Mbps with 1588 precision time protocol supports time-critical substation communication protocols like IEC 61850 and DNP3. The HS USB with integrated PHY enables local configuration ports, and the External Bus Interface (EBI) supports SDRAM expansion for buffering meter data streams. The 256 KB SRAM and 4 KB DCache deliver low-latency data path for real-time metering, while the 512 KB Flash supports secure bootloader plus application. Compared to Cortex-M4 alternatives, this MCU achieves 2x the throughput on DSP-heavy algorithms like FFT-based harmonic analysis.
推薦
Building Automation HMI Panel
Building automation HMI panels need rich graphics, multi-protocol connectivity, and responsive touch interfaces. The ATSAME70N19A-AN's Cortex-M7 with FPU drives TFT LCDs via the EBI (external bus interface) to SDRAM frame buffers while running HVAC control logic. The integrated HS SD/MMC supports log storage for occupancy and energy data, and dual CAN-FD interfaces connect to building-automation buses. The hardware crypto accelerator (in SAMS70 variants) supports secure BACnet/Modbus credentials. With 16 KB ICache, the panel achieves fluid touch-response under 100 ms even with Ethernet traffic. Compared to ARM Cortex-A application processors, this MCU consumes 1/3 the power at full load and integrates all peripherals needed for the panel without external bridge chips, reducing BOM cost.
推薦
Audio Processing Subsystem
Audio subsystems benefit from the ATSAME70N19A-AN's Cortex-M7 with single/double-precision FPU and DSP extensions, which accelerate audio DSP algorithms like equalization, dynamic range compression, and noise cancellation. The integrated HS USB supports USB Audio Class 2.0 device mode at 24-bit/192 kHz, while I2S interfaces connect to external audio codecs. With 256 KB SRAM and 4 KB DCache, the MCU handles multi-channel audio pipelines with low latency. The 512 KB Flash stores audio processing firmware plus presets, while the EBI to SDRAM supports longer audio buffers. Pair with low-noise audio ADCs/DACs like AK4621EF for full audio subsystem design. Compared to DSP-only processors, this MCU integrates a Cortex-M7 with general-purpose peripherals, reducing system complexity.
推薦
High-Performance IoT Edge Node
IoT edge nodes perform on-device inference to reduce cloud bandwidth and latency. The ATSAME70N19A-AN's Cortex-M7 at 300 MHz delivers up to 1.5 CoreMark/MHz, sufficient to run TensorFlow Lite Micro models for keyword spotting, vibration analysis, or anomaly detection. The integrated Ethernet MAC supports MQTT, CoAP, or LwM2M protocols, while HS USB handles local diagnostics. The 512 KB Flash stores inference models plus networking stacks, while 256 KB SRAM holds intermediate activations. The hardware AES/SHA accelerators (in SAMS70) provide secure TLS handshake acceleration. Compared to Cortex-M0+ IoT chips, this MCU achieves 5-10x faster inference, enabling more sophisticated edge analytics. SEGGER embOS and FreeRTOS are both fully supported for embedded development.
推薦
Motor Control and Power Conversion
The ATSAME70N19A-AN is well suited for motor control and power conversion applications including BLDC motor drives, servo controllers, and solar inverters. The Cortex-M7 with FPU runs field-oriented control (FOC) loops in software with deterministic cycle times under 10 us. The 12-bit ADC at 2 Msps samples three-phase currents simultaneously, and the high-resolution PWM timer (PWMC) drives the inverter at 20+ kHz with 1 ns resolution. With 256 KB SRAM, the MCU handles complex control algorithms plus safety firmware. The 100-pin LQFP package supports industrial temperature ranges. Compared to dedicated motor-control ICs, this MCU combines general-purpose processing with motor-control peripherals, enabling integration of HMI and communication stacks alongside control. Pair with isolated gate drivers and shunt resistors for complete inverter design.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAME70N19A-AN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAME70N20A-AN | ATSAME70N21A-AN | ATSAMS70N21A-AN | ATSAMS70N20A-AN | ATSAMV71N19B-AB |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin LQFP (14x14) | 100-pin LQFP (14x14) - same | 100-pin LQFP (14x14) - same | 100-pin LQFP (14x14) - same | 100-pin LQFP (14x14) - same | 100-pin LQFP (14x14) - same |
| Core | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU - same | ARM Cortex-M7 with FPU - same | ARM Cortex-M7 with FPU - same | ARM Cortex-M7 with FPU - same | ARM Cortex-M7 with FPU - same |
| Maximum Clock Frequency | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash | 512 KB | 1 MB | 2 MB | 2 MB | 1 MB | 512 KB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| Hardware Crypto (AES/SHA) | No (SAM E70 family - no crypto accelerator) | No | No | Yes (AES/SHA/TRNG) | Yes (AES/SHA/TRNG) | No |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
主要差異化特點
- Balanced Flash/RAM cost-optimized variant (對比ATSAME70N20A-AN)
- Cortex-M7 family without security crypto overhead (對比ATSAMS70N21A-AN)
- 100-pin LQFP at 14x14 mm with peripheral parity (對比ATSAME70N19B-AB (revision B silicon))
設計說明
Decoupling: Place one 100 nF ceramic capacitor at every VDDIO/VDDCORE/VDDBU pin pair, with bulk 4.7 uF to 10 uF ceramic capacitors at the LDO output feeds. Estimated: at 300 MHz, the core draws approximately 80 mA peak and I/O can swing up to 50 mA, so 4-layer PCB with dedicated power and ground planes is mandatory. The internal 3.3V LDO at pin 81 (VDDOUT33) must have a minimum 1 uF X7R output capacitor within 5 mm of the pin to maintain regulation under dynamic load transients. Per Microchip SAM E70 hardware design guide, separate analog and digital grounds with a single-point star connection to avoid ground-bounce coupling into ADC references.
Routing: High-speed signals (SD/MMC, HS USB, Ethernet) require controlled-impedance traces. Use 90 ohm differential for Ethernet pairs, 90 ohm differential for USB DP/DN, and 50 ohm single-ended for SD card clock. Keep HS USB trace length under 25 mm and match DP/DN within 0.5 mm to meet USB 2.0 high-speed signal-integrity requirements. The External Bus Interface (EBI) to SDRAM should use matched-length traces (within 1 mm) with series termination resistors 33 ohm on clock and address lines. Per the SAM E70 PCB layout checklist, place the 32.768 kHz crystal within 5 mm of XIN/XOUT pins with a guard ground ring to reduce noise coupling.
Crystal oscillator: The XIN/XOUT pins drive a 12-50 MHz fundamental-mode crystal with load capacitance as specified in the datasheet. Per the SAM E70 family datasheet, the crystal load capacitance typically ranges 12-20 pF. Estimated: stray capacitance from traces adds ~2-3 pF; therefore external load caps should be sized 2 pF below the crystal's nominal load. For RTC crystal (32.768 kHz) on dedicated low-frequency pins, expect 7 pF load. Place both crystals close to the MCU with a ground ring and route traces symmetrically to maintain 50/50 duty cycle at the internal PLL.
Boot configuration: SAM E70 boots from Flash by default, but the BMS (Boot Mode Select) pin and security fuse configuration determine fallback to SAM-BA bootloader over USB. Per Microchip errata documents, if the firmware image in Flash is corrupted and the BMS pin is set to invalid state, recovery requires SWD/JTAG debugger. Always strap BMS with a 10 kohm pull-down to ground for default Flash boot. Common pitfall: leaving unused GPIO pins floating - they can oscillate and draw excess current. Configure all unused pins as output-low or enable input with internal pull-down. Another common pitfall: forgetting to enable peripheral clocks before configuring GPIO alternate functions, which silently fails to map peripherals to pins.
合規資訊
RoHS compliant per Microchip product page. Standard -AN suffix indicates industrial grade -40 C to +105 C; not AEC-Q100 qualified. For automotive applications, request the AEC-Q100 grade same-package part from Microchip sales.
