ATSAME51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash 100-TQFP | Microchip
Référence : ATSAME51N19A-AFT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.12 | $71,20 |
| 100 | $6.38 | $638,00 |
| 500 | $5.74 | $2 870,00 |
| 1 000 | $5.15 | $5 150,00 |
| 3 000 | $4.62 | $13 860,00 |
ATSAME51N19A-AFT Présentation
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.
Alternatives de remplacement direct pour ATSAME51N19A-AFT — 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 ATSAME51N19A-AFT (même facteur de forme et même empreinte) — différant par ADC, Operating Temperature, SRAM, Supply Voltage, USB.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAME51N20A-AFT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAME54N20A-AFT
✅ Remplacement direct✓ En stock
$8.1 / unité
Voir la fiche technique →ATSAMD51N19A-AFT
✅ Remplacement direct✓ En stock
$4.8 / unité
Voir la fiche technique →ATSAMD51N20A-AF
✅ Remplacement direct✓ En stock
$6.84 / unité
Voir la fiche technique →ATSAME51J19A-AFT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$5.62 / unité
Voir la fiche technique →ATSAME51N19A-AFT Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier | 100-pin TQFP (14x14 mm) |
| Plage de température de fonctionnement | -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 |
| Type de montage | Surface Mount |
| Niveau MSL | 3 (168 hours, JEDEC J-STD-020) |
| Statut RoHS | Compliant |
| Packaging | Tape & Reel (T&R) |
Configuration des broches de ATSAME51N19A-AFT
| Broche 1 | PD0 — GPIO / SERCOM |
| Broche 2 | PD1 — GPIO / SERCOM |
| Broche 3 | PD2 — GPIO / SERCOM |
| Broche 4 | PD3 — GPIO / SERCOM |
| Broche 5 | VDD — Digital supply input |
| Broche 6 | VSS — Digital ground |
| Broche 7 | PD4 — GPIO / SERCOM |
| Broche 8 | PD5 — GPIO / SERCOM |
| Broche 9 | PD6 — GPIO / SERCOM |
| Broche 10 | PD7 — GPIO / SERCOM |
| Broche 11 | PD8 — GPIO / SERCOM |
| Broche 12 | PD9 — GPIO / SERCOM |
| Broche 13 | PD10 — GPIO / SERCOM |
| Broche 14 | PD11 — GPIO / SERCOM |
| Broche 15 | PD12 — GPIO / SERCOM |
| Broche 16 | PD13 — GPIO / SERCOM |
| Broche 17 | PD14 — GPIO / SERCOM |
| Broche 18 | PD15 — GPIO / SERCOM |
| Broche 19 | PC0 — GPIO / SERCOM |
| Broche 20 | PC1 — GPIO / SERCOM |
| Broche 21 | PC2 — GPIO / SERCOM |
| Broche 22 | PC3 — GPIO / SERCOM |
| Broche 23 | VSS — Digital ground |
| Broche 24 | VDD — Digital supply input |
| Broche 25 | PC4 — GPIO / SERCOM |
| Broche 26 | PC5 — GPIO / SERCOM |
| Broche 27 | PC6 — GPIO / SERCOM |
| Broche 28 | PC7 — GPIO / SERCOM |
| Broche 29 | PC8 — GPIO / SERCOM |
| Broche 30 | PC9 — GPIO / SERCOM |
| Broche 31 | PC10 — GPIO / SERCOM |
| Broche 32 | PC11 — GPIO / SERCOM |
| Broche 33 | PC12 — GPIO / SERCOM |
| Broche 34 | PC13 — GPIO / SERCOM |
| Broche 35 | PC14 — GPIO / SERCOM |
| Broche 36 | PC15 — GPIO / SERCOM |
| Broche 37 | PC16 — GPIO / SERCOM |
| Broche 38 | PC17 — GPIO / SERCOM |
| Broche 39 | PC18 — GPIO / SERCOM |
| Broche 40 | PC19 — GPIO / SERCOM |
| Broche 41 | PC20 — GPIO / SERCOM |
| Broche 42 | PC21 — GPIO / SERCOM |
| Broche 43 | VDDCORE — Core voltage decoupling |
| Broche 44 | VSS — Digital ground |
| Broche 45 | PB0 — GPIO / SERCOM |
| Broche 46 | PB1 — GPIO / SERCOM |
| Broche 47 | PB2 — GPIO / SERCOM |
| Broche 48 | PB3 — GPIO / SERCOM |
| Broche 49 | PB4 — GPIO / SERCOM |
| Broche 50 | PB5 — GPIO / SERCOM |
| Broche 51 | PB6 — GPIO / SERCOM |
| Broche 52 | PB7 — GPIO / SERCOM |
| Broche 53 | PB8 — GPIO / SERCOM |
| Broche 54 | PB9 — GPIO / SERCOM |
| Broche 55 | PB10 — GPIO / SERCOM |
| Broche 56 | PB11 — GPIO / SERCOM |
| Broche 57 | PB12 — GPIO / SERCOM |
| Broche 58 | PB13 — GPIO / SERCOM |
| Broche 59 | PB14 — GPIO / SERCOM |
| Broche 60 | PB15 — GPIO / SERCOM |
| Broche 61 | PB16 — GPIO / SERCOM |
| Broche 62 | PB17 — GPIO / SERCOM |
| Broche 63 | PB18 — GPIO / SERCOM |
| Broche 64 | PB19 — GPIO / SERCOM |
| Broche 65 | PB20 — GPIO / SERCOM |
| Broche 66 | PB21 — GPIO / SERCOM |
| Broche 67 | VDD — Digital supply input |
| Broche 68 | VSS — Digital ground |
| Broche 69 | PA0 — GPIO / SERCOM |
| Broche 70 | PA1 — GPIO / SERCOM |
| Broche 71 | PA2 — GPIO / SERCOM |
| Broche 72 | PA3 — GPIO / SERCOM |
| Broche 73 | PA4 — GPIO / SERCOM |
| Broche 74 | PA5 — GPIO / SERCOM |
| Broche 75 | PA6 — GPIO / SERCOM |
| Broche 76 | PA7 — GPIO / SERCOM |
| Broche 77 | PA8 — GPIO / SERCOM |
| Broche 78 | PA9 — GPIO / SERCOM |
| Broche 79 | PA10 — GPIO / SERCOM |
| Broche 80 | PA11 — GPIO / SERCOM / USB DM |
| Broche 81 | PA12 — GPIO / SERCOM / USB DP |
| Broche 82 | PA13 — GPIO / SERCOM |
| Broche 83 | PA14 — GPIO / SERCOM |
| Broche 84 | PA15 — GPIO / SERCOM |
| Broche 85 | PA16 — GPIO / SERCOM |
| Broche 86 | PA17 — GPIO / SERCOM |
| Broche 87 | PA18 — GPIO / SERCOM |
| Broche 88 | PA19 — GPIO / SERCOM |
| Broche 89 | PA20 — GPIO / SERCOM |
| Broche 90 | PA21 — GPIO / SERCOM |
| Broche 91 | PA22 — GPIO / SERCOM |
| Broche 92 | PA23 — GPIO / SERCOM |
| Broche 93 | PA24 — GPIO / SERCOM |
| Broche 94 | PA25 — GPIO / SERCOM |
| Broche 95 | VDDANA — Analog supply input |
| Broche 96 | VSS — Analog ground |
| Broche 97 | XIN — Crystal oscillator input |
| Broche 98 | XOUT — Crystal oscillator output |
| Broche 99 | VDD — Digital supply input |
| Broche 100 | RESET — Active-low reset input |
Applications typiques
ATSAME51N19A-AFT convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAME51N19A-AFT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Integrated 12-bit 1 MSPS ADC and 12-bit DAC (vs ATSAMD51N19A-AFT)
- 1 MB Flash upgrade path with same pinout (vs ATSAME51N20A-AFT)
- Industrial -40C to +125C operating range (vs Commercial-grade ATSAM variants)
- Dual-panel Flash with ECC (vs Single-bank Cortex-M4 MCUs)
Notes de conception
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.
Informations de conformité
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.
