ATSAME51J19A-AUT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
Référence : ATSAME51J19A-AUT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $11.38 | $11,38 |
| 10 | $10.24 | $102,40 |
| 100 | $9.1 | $910,00 |
| 500 | $7.95 | $3 975,00 |
| 1 000 | $6.85 | $6 850,00 |
ATSAME51J19A-AUT Présentation
A Cortex-M4F microcontroller is a 32-bit ARM processor core augmented by a hardware FPU and DSP extensions, optimized for deterministic real-time control and signal processing. The SAM E51 family sits in Microchip's mid-performance MCU tier above the SAMD51 and shares the Cortex-M4F ISA, enabling straightforward firmware migration. The part belongs to the broader product hierarchy: ARM Cortex-M4F MCU -> 32-bit microcontroller -> embedded microcontroller -> integrated circuit -> semiconductor.
Key features of the ATSAME51J19A-AUT include 120 MHz core clock with FPU, 512 KB dual-panel Flash for read-while-write firmware update support, 256 KB SRAM, a 12-bit 1 MSPS ADC, 12-bit DAC, up to six SERCOM modules for UART/SPI/I2C, one CAN-FD controller, full-speed USB with embedded PHY, and an Event System for low-latency inter-peripheral signaling. The TQFP-64 footprint provides generous I/O for mixed-signal designs.
The architecture pairs the Cortex-M4F core with a 5-stage pipeline, single-cycle MAC, and single-precision IEEE-754 FPU, delivering 1.61 CoreMark/MHz efficiency. Hardware accelerators such as the Peripheral Touch Controller and the I2S interface are integrated, reducing BOM cost. The dual-panel Flash allows one bank to execute code while the other is being reprogrammed, supporting OTA firmware updates without external memory.
Typical applications include industrial IoT gateways, CAN-FD connected sensor hubs, USB-C audio interfaces, building automation controllers, and HMI touch panels. The combination of floating-point DSP performance, USB, and CAN-FD makes the part a strong fit for industrial connectivity nodes that aggregate sensor data and present it to a host controller.
When designing with this MCU, allocate the 64-pin budget carefully: SERCOMs are highly multiplexed, so pin mapping must be finalized before PCB layout. Use the Atmel Studio 7 / MPLAB X IDE with ASF or Harmony 3 frameworks for peripheral configuration and code generation.
This page synthesizes distributor pricing, drop-in SAM E51 / SAMD51 alternatives, and application guidance not found in a single datasheet source, helping engineers select and source the right variant faster.
Alternatives de remplacement direct pour ATSAME51J19A-AUT — 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 ATSAME51J19A-AUT (même facteur de forme et même empreinte) — différant par ADC, SRAM, Operating Voltage, Core, Flash Memory.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAME51J19A-AFT
✅ Remplacement direct✓ En stock
$5.62 / unité
Voir la fiche technique →ATSAME51J18A-AUT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.65 / unité
Voir la fiche technique →ATSAMD51J19A-AUT-EFP
✅ Remplacement direct✓ En stock
$4.45 / unité
Voir la fiche technique →ATSAMD51J20A-AUT-EFP
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$7.8 / unité
Voir la fiche technique →ATSAME51J19A-AUT-EFP
✅ Remplacement direct✓ En stock
$6.45 / unité
Voir la fiche technique →ATSAME51J19A-AUT Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M4F with FPU |
| CPU Frequency | 120 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 256 KB |
| Operating Voltage | 3.3 V typical (1.62 V to 3.63 V) |
| Boîtier | 64-pin TQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (industrial, -AUT suffix) |
| Communication Interfaces | SERCOM (UART/SPI/I2C), CAN-FD, USB 2.0 Full-Speed |
| Statut RoHS | Compliant |
| Lead Free | Yes |
| Flash Bank Architecture | Dual-panel (read-while-write) |
Configuration des broches de ATSAME51J19A-AUT
| Broche 1 | PA00 — I/O - SERCOM/I2C |
| Broche 2 | PA01 — I/O - SERCOM/I2C |
| Broche 3 | PA02 — I/O - SERCOM, ADC |
| Broche 4 | PA03 — I/O - SERCOM, ADC, REF |
| Broche 5 | PA04 — I/O - SERCOM, VBUS |
| Broche 6 | PA05 — I/O - SERCOM |
| Broche 7 | PA06 — I/O - SERCOM |
| Broche 8 | PA07 — I/O - SERCOM |
| Broche 9 | VDD — Power 1.62 V to 3.63 V |
| Broche 10 | VSS — Ground |
| Broche 11 | PB08 — I/O - SERCOM, ADC |
| Broche 12 | PB09 — I/O - SERCOM, ADC |
| Broche 13 | PB10 — I/O - SERCOM |
| Broche 14 | PB11 — I/O - SERCOM |
| Broche 15 | PB12 — I/O - SERCOM |
| Broche 16 | PB13 — I/O - SERCOM |
| Broche 17 | PB14 — I/O - SERCOM |
| Broche 18 | PB15 — I/O - SERCOM |
| Broche 19 | PC00 — I/O |
| Broche 20 | PC01 — I/O |
| Broche 21 | PC02 — I/O |
| Broche 22 | PC03 — I/O - SERCOM, USB |
| Broche 23 | PC04 — I/O - SERCOM |
| Broche 24 | PC05 — I/O - SERCOM |
| Broche 25 | PC06 — I/O - SERCOM |
| Broche 26 | PC07 — I/O - SERCOM |
| Broche 27 | VSS — Ground |
| Broche 28 | VDD — Power |
| Broche 29 | PC08 — I/O |
| Broche 30 | PC09 — I/O |
| Broche 31 | PC10 — I/O |
| Broche 32 | PC11 — I/O |
| Broche 33 | PC12 — I/O |
| Broche 34 | PC13 — I/O |
| Broche 35 | PC14 — I/O |
| Broche 36 | PC15 — I/O |
| Broche 37 | PD00 — I/O |
| Broche 38 | PD01 — I/O |
| Broche 39 | PD02 — I/O |
| Broche 40 | PD03 — I/O |
| Broche 41 | PD04 — I/O |
| Broche 42 | PD05 — I/O |
| Broche 43 | PD06 — I/O |
| Broche 44 | PD07 — I/O |
| Broche 45 | PD08 — I/O |
| Broche 46 | PD09 — I/O |
| Broche 47 | PD10 — I/O |
| Broche 48 | PD11 — I/O |
| Broche 49 | PD12 — I/O |
| Broche 50 | PD13 — I/O |
| Broche 51 | VSS — Ground |
| Broche 52 | VDD — Power |
| Broche 53 | PB22 — I/O - SERCOM |
| Broche 54 | PB23 — I/O - SERCOM |
| Broche 55 | PA08 — I/O - SERCOM, XOUT |
| Broche 56 | PA09 — I/O - SERCOM, XIN |
| Broche 57 | PA10 — I/O - SERCOM |
| Broche 58 | PA11 — I/O - SERCOM |
| Broche 59 | PA12 — I/O - SERCOM, CAN |
| Broche 60 | PA13 — I/O - SERCOM, CAN |
| Broche 61 | PA14 — I/O - SERCOM |
| Broche 62 | PA15 — I/O - SERCOM |
| Broche 63 | PA16 — I/O - SERCOM |
| Broche 64 | PA17 — I/O - SERCOM |
Applications typiques
ATSAME51J19A-AUT convient pour 6 applications: Industrial IoT Gateway, USB-C Audio Interface, CAN-FD Sensor Hub, Building Automation Controller, HMI Touch Panel Controller, Portable Medical Sensor.
Industrial IoT Gateway
The ATSAME51J19A-AUT is well suited to industrial IoT gateway designs where CAN-FD sensor nodes aggregate and forward telemetry to a host controller over USB. Its Cortex-M4F core running at 120 MHz can handle CAN-FD frame parsing, protocol conversion, and cryptographic pre-processing simultaneously. Engineers typically deploy Harmony 3's TCP/IP or USB CDC stack to expose the gateway as a virtual COM port or MQTT bridge. The 512 KB Flash holds TLS stacks and OTA bootloader images, while 256 KB SRAM accommodates full TCP/IP buffers without external RAM. Compared with a Cortex-M0+ MCU, the FPU accelerates JSON parsing and AES-128 encryption by 5-10x. Place a 16 MHz crystal or use the internal 16 MHz DFLL for system clock; route CAN-FD TX/RX to the integrated CAN module with proper 120 ohm termination.
Recommandé
USB-C Audio Interface
The SAM E51's USB 2.0 Full-Speed device with embedded PHY makes the ATSAME51J19A-AUT a fit for USB-C audio interfaces bridging to a host PC. The Cortex-M4F's DSP instructions accelerate fixed-point audio processing such as biquad filtering and dynamic range compression. With 256 KB SRAM, designers can implement multi-channel audio at 48 kHz / 24-bit without external memory. The integrated 12-bit DAC drives headphone amps for monitoring paths, while an external S/PDIF or I2S codec handles high-fidelity outputs. Firmware typically uses TinyUSB or ASF USB stack with class-compliant audio descriptors. Compared with M0+ MCUs, the M4F delivers roughly 2x cycles per audio sample, easing timing closure.
Recommandé
CAN-FD Sensor Hub
In automotive and industrial sensor hubs, the ATSAME51J19A-AUT aggregates CAN-FD inputs from multiple nodes and publishes them over Ethernet or wireless. The 120 MHz M4F core can poll a CAN-FD bus at 1 Mbit while running a TCP/IP or 6LoWPAN gateway to a cloud uplink. Dual-panel Flash enables fail-safe OTA firmware upgrades - one bank reprograms while the other executes, supporting field maintenance without downtime. The 12-bit ADC reads analog sensor channels, while SERCOMs handle UART peripherals such as GPS or BLE modules. Its industrial -40C to +85C rating suits outdoor enclosures and vehicle cabins.
Recommandé
Building Automation Controller
The ATSAME51J19A-AUT brings Cortex-M4F DSP performance and ample peripherals to BACnet, Modbus, or KNX building automation controllers. With 6 SERCOM channels, the MCU can simultaneously run a Modbus master for HVAC, a UART link to a touch panel, and a SPI display interface. 512 KB Flash stores full BACnet stacks with object dictionary support, while 256 KB SRAM keeps trend logs in memory. The integrated RTC with calendar mode maintains building schedules during mains dips. Compared with older ARM Cortex-M3 designs, the M4F's single-cycle MAC accelerates the AES-128 encryption used in BACnet/SC. Use the integrated PTC for keypad or slider touch interfaces.
Recommandé
HMI Touch Panel Controller
The ATSAME51J19A-AUT drives small HMI touch panels up to 5 inches using SPI or RGB interfaces, with Cortex-M4F cycles to spare for UI rendering and Debounce. The integrated Peripheral Touch Controller (PTC) supports up to 12 self-capacitance or mutual-capacitance electrodes for glass or ITO overlays, eliminating external touch ICs. The 12-bit ADC digitizes analog sensors behind the panel, while SERCOMs connect to RS-485 or Modbus peripherals. Compared with external touch controllers, the integrated PTC reduces BOM cost and PCB area. The 64-pin TQFP exposes enough GPIO for multi-color LED backlight control.
Recommandé
Portable Medical Sensor
The ATSAME51J19A-AUT's industrial temperature range, low-power Sleep modes, and USB connectivity support portable medical peripherals such as pulse oximeters, ECG front-ends, and wearable monitors. The Cortex-M4F DSP instructions accelerate digital filter implementations (FIR, biquad, FFT) that clean ECG and PPG signals in firmware, reducing analog front-end complexity. With 256 KB SRAM and 512 KB Flash, designers can embed reference DSP libraries along with USB class-compliant drivers. Compared with discrete MCU + DSP designs, the SAM E51 reduces BOM cost while keeping latency under 10 ms per sample. The 12-bit ADC at 1 MSPS is well-matched for ECG and PPG analog front-ends.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAME51J19A-AUT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAME51J19A-AFT | ATSAME51J18A-AUT | ATSAMD51J19A-AUT | ATSAMD51J20A-AUT | ATSAME51J19A-AUT-EFP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same |
| Core | 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 | 512 KB | 512 KB | 256 KB (-50%) | 512 KB | 1 MB (+100%) | 512 KB |
| SRAM | 256 KB | 256 KB | 128 KB | 256 KB | 256 KB | 256 KB |
| CAN-FD | Yes | Yes | Yes | No (Ethernet MAC instead) | No | Yes |
| USB 2.0 FS | Yes | Yes | Yes | Yes | Yes | Yes |
Principaux différenciateurs
- Dual-panel Flash enables OTA firmware upgrades without downtime (vs ATSAME51J19A-AFT (same Flash but different temperature grade))
- Same TQFP-64 pinout across SAM E51 / SAMD51 families (vs ATSAMD51J19A-AUT)
- Industrial temperature rating (-40C to +85C) (vs ATSAME51J19A-AUT-EFP)
Notes de conception
Route the ARM trace impedance matched to the 32 kHz XIN/XOUT crystal trace length is critical for USB low-jitter operation; keep traces under 5 mm and shield with a ground pour. Decouple VDD pins individually with 100 nF X7R ceramic capacitors placed within 3 mm of each VDD pin. Bulk 4.7 uF decoupling is recommended at the package's main supply pin.
Supply the SAM E51 from a clean 3.3 V LDO (e.g., MCP1755) to avoid core noise injection. The internal DC-DC converter requires at least 1 uF X7R on its filter pin for stable operation. Avoid shared supplies with switching converters or RF power stages without pi-filter isolation. Estimated: at 120 MHz core + USB active, average IDD ~ 30 mA, so the LDO must be rated above 100 mA.
Do not disable the dual-panel Flash bootloader without enabling the secure SAM-BA stage, or recovery after bad firmware may require SAMC20 debug access. Ensure SERCOM I2C pins have external pull-ups (>= 4.7 kohm) even when using on-chip pull resistors because internal pull strength is too weak for 400 kHz I2C at 3.3 V.
Route USB DP/DM as a 90 ohm differential pair on the same layer with no splits, keeping the pair length matched within 2 mm. The USB reference design uses an external 90-ohm common-mode choke near the connector. For CAN-FD, maintain 120 ohm termination at both ends of the bus and twist the CAN-H/CAN-L pair within the cable harness.
Informations de conformité
RoHS compliant per Microchip product page; AEC-Q100 not applicable (automotive grade variants have distinct ordering codes). Refer to manufacturer datasheet for full compliance certificates.
