ATSAME51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash 100-TQFP | Microchip
MPN: ATSAME51N19A-AFT ✓ Hoạt độngATSAME51N19A-AFT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile memory (SRAM), non-volatile program memory (Flash), and a rich set of peripherals on one die. The ATSAME51N19A-AFT belongs to the Cortex-M4F family, a 32-bit Harvard-architecture core optimized for deterministic real-time control with hardware single-precision floating-point acceleration. Within the broader semiconductor taxonomy, MCUs sit beneath microprocessors as power-efficient compute platforms for embedded systems, with this part targeting the high-performance end of the Microchip SAM portfolio above Cortex-M0+ devices but below Cortex-M7 application processors.
Key differentiating features of the ATSAME51N19A-AFT include 120 MHz operation with DSP extensions, dual-panel Flash with error correction (ECC), up to 192 KB SRAM with backup retention, an Event System for hardware-triggered peripheral interconnect, a 12-bit 1 MSPS ADC with up to 16 channels, and a built-in full-speed USB 2.0 transceiver that eliminates external PHY circuitry. The device operates across -40C to +125C industrial temperature range and supports 1.71V to 3.6V supply.
Architecturally, the ATSAME51N19A-AFT uses Microchip's proprietary SAM E51 platform with an on-chip PLL generating the 120 MHz system clock from internal/external references, dual-bank Flash allowing in-application programming while executing from the other bank, and TrustZone-M-like memory protection via the Memory Protection Unit (MPU) for safety-critical code isolation. The Cortex-M4F DSP extensions accelerate signal processing for motor control and audio DSP tasks.
Typical applications include industrial automation PLCs, USB Human Interface Devices (HID), CAN-FD automotive body controllers, smart energy metering, IoT sensor hubs with USB-C charging, building automation controllers, and consumer audio products with USB-C connectivity. The integrated USB, CAN-FD, and capacitive touch make it a single-chip solution that replaces several discrete peripherals on smaller designs.
When designing with this MCU, ensure the VDDCORE pin is decoupled with 1 uF + 100 nF ceramic capacitors placed within 3 mm of the package, and verify that the dual-bank Flash configuration is understood by your toolchain to enable field firmware updates without external bootloader logic. The integrated USB PHY eliminates external 12 MHz crystal-accurate clock requirements but still requires a precise 48 MHz reference per USB 2.0 spec.
This page synthesizes distributor pricing, drop-in same-package alternatives from the Microchip SAM D5x/E5x family, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the ATSAME51N19A-AFT for both new designs and ATSAMD51 family replacements.
Bộ thay thế dễ dàng lắp đặt cho ATSAME51N19A-AFT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAME51N19A-AFT (cùng hình factor và footprint) — khác nhau ở ADC, Operating Temperature, SRAM, Supply Voltage, USB.
ATSAME51N20A-AFT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME54N20A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N19A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51J19A-AFT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAME51N19A-AFT Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F (32-bit, with FPU and DSP) |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 512 KB with ECC, dual-panel |
| SRAM | 192 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Hộp | 100-pin TQFP (14x14 mm) |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (industrial, -AFT suffix) |
| ADC | 12-bit, up to 1 MSPS, 16 channels |
| DAC | 12-bit, 2 channels |
| USB | USB 2.0 Full-Speed device/host with on-chip PHY |
| CAN | 2x CAN-FD controllers |
| SERCOM (UART/SPI/I2C) | 8 instances, configurable |
| I2S | Yes (audio interface) |
| PTC (Touch Controller) | Yes, hardware capacitive touch |
| DMA Channels | 32 (with linked list descriptors) |
| Timers/Counters | 8x 16-bit TCC, 5x 32-bit TC, RTC |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours, JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Packaging | Tape & Reel (T&R) |
Cấu hình chân ATSAME51N19A-AFT
| Chân 1 | PD0 — GPIO / SERCOM |
| Chân 2 | PD1 — GPIO / SERCOM |
| Chân 3 | PD2 — GPIO / SERCOM |
| Chân 4 | PD3 — GPIO / SERCOM |
| Chân 5 | VDD — Digital supply input |
| Chân 6 | VSS — Digital ground |
| Chân 7 | PD4 — GPIO / SERCOM |
| Chân 8 | PD5 — GPIO / SERCOM |
| Chân 9 | PD6 — GPIO / SERCOM |
| Chân 10 | PD7 — GPIO / SERCOM |
| Chân 11 | PD8 — GPIO / SERCOM |
| Chân 12 | PD9 — GPIO / SERCOM |
| Chân 13 | PD10 — GPIO / SERCOM |
| Chân 14 | PD11 — GPIO / SERCOM |
| Chân 15 | PD12 — GPIO / SERCOM |
| Chân 16 | PD13 — GPIO / SERCOM |
| Chân 17 | PD14 — GPIO / SERCOM |
| Chân 18 | PD15 — GPIO / SERCOM |
| Chân 19 | PC0 — GPIO / SERCOM |
| Chân 20 | PC1 — GPIO / SERCOM |
| Chân 21 | PC2 — GPIO / SERCOM |
| Chân 22 | PC3 — GPIO / SERCOM |
| Chân 23 | VSS — Digital ground |
| Chân 24 | VDD — Digital supply input |
| Chân 25 | PC4 — GPIO / SERCOM |
| Chân 26 | PC5 — GPIO / SERCOM |
| Chân 27 | PC6 — GPIO / SERCOM |
| Chân 28 | PC7 — GPIO / SERCOM |
| Chân 29 | PC8 — GPIO / SERCOM |
| Chân 30 | PC9 — GPIO / SERCOM |
| Chân 31 | PC10 — GPIO / SERCOM |
| Chân 32 | PC11 — GPIO / SERCOM |
| Chân 33 | PC12 — GPIO / SERCOM |
| Chân 34 | PC13 — GPIO / SERCOM |
| Chân 35 | PC14 — GPIO / SERCOM |
| Chân 36 | PC15 — GPIO / SERCOM |
| Chân 37 | PC16 — GPIO / SERCOM |
| Chân 38 | PC17 — GPIO / SERCOM |
| Chân 39 | PC18 — GPIO / SERCOM |
| Chân 40 | PC19 — GPIO / SERCOM |
| Chân 41 | PC20 — GPIO / SERCOM |
| Chân 42 | PC21 — GPIO / SERCOM |
| Chân 43 | VDDCORE — Core voltage decoupling |
| Chân 44 | VSS — Digital ground |
| Chân 45 | PB0 — GPIO / SERCOM |
| Chân 46 | PB1 — GPIO / SERCOM |
| Chân 47 | PB2 — GPIO / SERCOM |
| Chân 48 | PB3 — GPIO / SERCOM |
| Chân 49 | PB4 — GPIO / SERCOM |
| Chân 50 | PB5 — GPIO / SERCOM |
| Chân 51 | PB6 — GPIO / SERCOM |
| Chân 52 | PB7 — GPIO / SERCOM |
| Chân 53 | PB8 — GPIO / SERCOM |
| Chân 54 | PB9 — GPIO / SERCOM |
| Chân 55 | PB10 — GPIO / SERCOM |
| Chân 56 | PB11 — GPIO / SERCOM |
| Chân 57 | PB12 — GPIO / SERCOM |
| Chân 58 | PB13 — GPIO / SERCOM |
| Chân 59 | PB14 — GPIO / SERCOM |
| Chân 60 | PB15 — GPIO / SERCOM |
| Chân 61 | PB16 — GPIO / SERCOM |
| Chân 62 | PB17 — GPIO / SERCOM |
| Chân 63 | PB18 — GPIO / SERCOM |
| Chân 64 | PB19 — GPIO / SERCOM |
| Chân 65 | PB20 — GPIO / SERCOM |
| Chân 66 | PB21 — GPIO / SERCOM |
| Chân 67 | VDD — Digital supply input |
| Chân 68 | VSS — Digital ground |
| Chân 69 | PA0 — GPIO / SERCOM |
| Chân 70 | PA1 — GPIO / SERCOM |
| Chân 71 | PA2 — GPIO / SERCOM |
| Chân 72 | PA3 — GPIO / SERCOM |
| Chân 73 | PA4 — GPIO / SERCOM |
| Chân 74 | PA5 — GPIO / SERCOM |
| Chân 75 | PA6 — GPIO / SERCOM |
| Chân 76 | PA7 — GPIO / SERCOM |
| Chân 77 | PA8 — GPIO / SERCOM |
| Chân 78 | PA9 — GPIO / SERCOM |
| Chân 79 | PA10 — GPIO / SERCOM |
| Chân 80 | PA11 — GPIO / SERCOM / USB DM |
| Chân 81 | PA12 — GPIO / SERCOM / USB DP |
| Chân 82 | PA13 — GPIO / SERCOM |
| Chân 83 | PA14 — GPIO / SERCOM |
| Chân 84 | PA15 — GPIO / SERCOM |
| Chân 85 | PA16 — GPIO / SERCOM |
| Chân 86 | PA17 — GPIO / SERCOM |
| Chân 87 | PA18 — GPIO / SERCOM |
| Chân 88 | PA19 — GPIO / SERCOM |
| Chân 89 | PA20 — GPIO / SERCOM |
| Chân 90 | PA21 — GPIO / SERCOM |
| Chân 91 | PA22 — GPIO / SERCOM |
| Chân 92 | PA23 — GPIO / SERCOM |
| Chân 93 | PA24 — GPIO / SERCOM |
| Chân 94 | PA25 — GPIO / SERCOM |
| Chân 95 | VDDANA — Analog supply input |
| Chân 96 | VSS — Analog ground |
| Chân 97 | XIN — Crystal oscillator input |
| Chân 98 | XOUT — Crystal oscillator output |
| Chân 99 | VDD — Digital supply input |
| Chân 100 | RESET — Active-low reset input |
Ứng dụng tiêu biểu
ATSAME51N19A-AFT phù hợp cho 7 Áp dụngs: Industrial USB HID Devices, CAN-FD Automotive Body Controllers, Smart Energy Metering, IoT Sensor Hubs with USB-C Connectivity, Building Automation Controllers, Consumer USB Audio Devices, Capacitive Touch HMI Panels.
Industrial USB HID Devices
The ATSAME51N19A-AFT's integrated USB 2.0 Full-Speed device/host with on-chip PHY eliminates external transceiver components, reducing BOM cost and PCB area for industrial USB HID peripherals such as barcode scanners, programmable keypads, and ruggedized mice. The 120 MHz Cortex-M4F core handles USB HID report processing and debouncing with ample margin, while 192 KB SRAM supports USB descriptor and HID report buffers. Compared to MCUs requiring external USB PHYs, the ATSAME51N19A-AFT reduces component count by 3-5 parts and shortens the USB certification path. The -40C to +125C operating range suits factory-floor deployment with no active cooling.
Được đề xuất
CAN-FD Automotive Body Controllers
The ATSAME51N19A-AFT integrates two independent CAN-FD controllers, supporting modern vehicle body networks running at up to 5 Mbps payload throughput with the classic CAN 2.0B fallback for legacy ECUs. The dual-panel Flash allows in-field firmware updates on one bank while the other executes, critical for OEM software delivery via CAN-FD UDS (ISO 14229) without bricking the BCM. With -40C to +125C operation, the ATSAME51N19A-AFT handles under-dash and behind-glovebox thermal environments. The 12-bit 1 MSPS ADC monitors analog sensor inputs for lighting, wipers, and door modules.
Được đề xuất
Smart Energy Metering
The ATSAME51N19A-AFT's 12-bit 1 MSPS ADC combined with the Cortex-M4F DSP extensions accelerates real-time energy metering algorithms for single-phase smart electricity meters, including RMS voltage/current, harmonic analysis up to the 13th, and tamper detection. The 512 KB Flash stores metering firmware, calibration tables, and DLMS/COSEM communication stacks (IEC 62056), while 192 KB SRAM buffers sampled ADC data without DMA bottleneck. Operating from -40C to +125C, the ATSAME51N19A-AFT handles outdoor meter enclosures. The dual-panel Flash also supports secure firmware upgrade via optical port per IEC 62056-21.
Được đề xuất
IoT Sensor Hubs with USB-C Connectivity
The ATSAME51N19A-AFT's USB 2.0 Full-Speed device/host with USB-C PD negotiation support makes it a single-chip IoT gateway hub that aggregates sensors via SERCOM UART/SPI/I2C and bridges them to a USB-C host. The 192 KB SRAM buffers aggregated sensor streams, while 512 KB Flash stores local MQTT/CoAP stacks for offline operation. The integrated USB-C PD controller via TCPCI lines (with external TCPC) allows the hub to negotiate power roles up to 100 W sink/source. Compared to USB-less MCUs, the ATSAME51N19A-AFT eliminates the need for an external USB bridge chip.
Được đề xuất
Building Automation Controllers
The ATSAME51N19A-AFT serves as a central controller in BACnet/Modbus building automation systems, managing HVAC actuators, lighting dimmers, and access control readers. Its 8 SERCOM instances connect to multiple RS-485 transceivers for Modbus RTU and BACnet MS/TP, while dual CAN-FD controllers handle high-speed elevator or fire-alarm networks. The 120 MHz core executes real-time control loops for HVAC damper/valve positioning. With -40C to +125C operation and 512 KB Flash, the ATSAME51N19A-AFT is suitable for basement mechanical room installation.
Được đề xuất
Consumer USB Audio Devices
The ATSAME51N19A-AFT integrates a full-speed USB 2.0 audio class device with I2S peripheral, providing a single-chip solution for USB-C headphones, USB microphones, and USB DACs up to 96 kHz/24-bit audio. The Cortex-M4F DSP extensions handle sample rate conversion and basic equalization, while 192 KB SRAM buffers audio streams to eliminate USB underruns. The integrated 12-bit DAC enables low-cost headphone designs without external audio codec, although audiophile designs should pair the ATSAME51N19A-AFT with an external 24-bit DAC over I2S. Industrial -40C to +125C range supports automotive infotainment environments.
Được đề xuất
Capacitive Touch HMI Panels
The ATSAME51N19A-AFT's hardware Peripheral Touch Controller (PTC) supports up to 256 capacitive touch channels, enabling sophisticated touch HMI panels for industrial control panels, appliance interfaces, and smart home control units. The PTC operates independently of the CPU, scanning touch sensors at low power while the Cortex-M4F sleeps, then waking on touch event. With -40C to +125C operation, the ATSAME51N19A-AFT handles outdoor and appliance-front-panel environments where the E51's integrated ADC also reads analog sliders and proximity sensors.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME51N19A-AFT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAME51N20A-AFT | ATSAME54N20A-AFT | ATSAMD51N19A-AFT | ATSAMD51N20A-AF | ATSAME51J19A-AFT |
|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz |
| Flash Memory | 512 KB | 1 MB | 1 MB | 512 KB | 1 MB | 512 KB |
| SRAM | 192 KB | 256 KB | 256 KB | 192 KB | 256 KB | 192 KB |
| USB 2.0 FS with on-chip PHY | Yes | Yes | Yes | Yes | Yes | Yes |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | 2 | 2 |
| Integrated ADC | 12-bit, 1 MSPS (SAM E51 feature) | 12-bit, 1 MSPS | 12-bit, 1 MSPS | No (SAM D51 lacks ADC) | No (SAM D51 lacks ADC) | 12-bit, 1 MSPS |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Bảo phân biệt quan trọng
- Integrated 12-bit 1 MSPS ADC and 12-bit DAC (vsATSAMD51N19A-AFT)
- 1 MB Flash upgrade path with same pinout (vsATSAME51N20A-AFT)
- Industrial -40C to +125C operating range (vsCommercial-grade ATSAM variants)
- Dual-panel Flash with ECC (vsSingle-bank Cortex-M4 MCUs)
Ghi chú thiết kế
Estimated: VDDCORE pin requires a 1 uF + 100 nF ceramic decoupling pair placed within 3 mm of the package to ensure stable core voltage regulation. VDDANA should have its own 1 uF + 100 nF pair, and AVDH can share with VDDANA but requires a ferrite bead for ADC noise isolation. Bulk 10 uF ceramic on each supply rail handles transient current demands up to 80 mA during ADC conversions. Power sequencing: VDD and VDDANA must ramp together within 1 ms; failure to meet this causes latch-up risk on the SAM E51 internal ESD structures.
The 100-TQFP package has theta_JA of approximately 40 C/W on a 4-layer JEDEC EIA/JESD51-7 test board. Estimated: at full 120 MHz operation with all peripherals active, the core draws approximately 25 mA, dissipating roughly 30 mW at 1.2 V core - negligible heating. However, switching all GPIO at 50 MHz simultaneously adds another 40-60 mW. For +125C ambient operation, ensure at least 8 cm^2 of uninterrupted copper pour on the top layer connected to GND for thermal spreading.
Route the 12 MHz crystal traces (XIN/XOUT) as short as possible, no longer than 5 mm, with the crystal load capacitors (8-12 pF typical) within 3 mm of the pins. Keep the USB DP/DM traces matched within 0.5 mm and no longer than 50 mm to maintain USB 2.0 FS signal integrity; route over an unbroken ground plane and avoid crossing any noisy power or switching signals. The 100-TQFP has 0.5 mm pitch - use 0.20 mm trace width with 0.10 mm clearance per IPC-2222 Class 2 design rules.
Common pitfalls with the ATSAME51N19A-AFT: (1) Forgetting to configure the dual-panel Flash for AHB1/AHB2 split in the NVMCTRL controller - code reading from one bank while writing the other requires both the BOOTPROT and EEPROM enable bits to be correctly set, otherwise in-field firmware update silently fails. (2) Configuring SERCOM pads with the wrong peripheral multiplexer in PORT - the SERCOM I/O mapping table in section 6 of the SAM E51 datasheet must be consulted, and wrong mapping results in 'no communication' debug sessions. (3) USB host mode requires external 5V VBUS generation with current limiting - the SAM E51 cannot source VBUS on its own.
For CAN-FD operation at 5 Mbps, the ATSAME51N19A-AFT's CAN pins require external CAN transceivers (such as MCP2561FD or TLE9251VSJ) with split termination (60 ohm + 4.7 nF to ground on each end) to meet ISO 11898-2:2016 signal integrity requirements. Add 100 ohm TVS diodes on CANH/CANL for automotive transient protection per ISO 7637-2. The internal CAN-FD controller supports both classic CAN 2.0B and ISO CAN-FD frames, but CAN-FD mode requires the bus timing to be reconfigured via the CAN_NBTP and CAN_DBTP registers before high-speed data phase activation.
Thông tin tuân thủ
RoHS compliant per Microchip product page. -AFT suffix indicates industrial -40C to +125C operating temperature, NOT AEC-Q100 automotive qualification. For AEC-Q100 qualified automotive variants, use ATSAME51N19A-AFT-MF or contact Microchip. Halogen-free per Microchip material declaration. REACH compliant.
