ATSAMD51J19A-MF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
N.º da peça: ATSAMD51J19A-MF ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.45 | $8,45 |
| 10 | $7.61 | $76,10 |
| 100 | $6.85 | $685,00 |
| 500 | $6.12 | $3.060,00 |
| 1.000 | $5.4 | $5.400,00 |
ATSAMD51J19A-MF Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. Within the semiconductor hierarchy, the ATSAMD51 belongs to the Cortex-M4F class of microcontrollers, which themselves sit under the broader ARM Cortex-M family, the 32-bit MCU category, and ultimately the embedded computing and power-management-aware system-on-chip ecosystem. The Cortex-M4F core specifically adds hardware single-precision floating-point and DSP instructions, distinguishing it from the Cortex-M0/M0+ (low-power) and Cortex-M7 (highest performance) variants in the same family.
Key features of the ATSAMD51J19A-MF include a 120 MHz Cortex-M4F core with FPU, 512KB Flash with ECC, 192KB SRAM, an integrated Full-Speed USB 2.0 interface with on-chip PHY, a 12-bit 1 MSPS ADC, two 12-bit 1 MSPS DACs, up to 51 GPIO, SERCOM (configurable serial) peripherals supporting I2C/SPI/UART, an I2S audio interface, an Event System, a 32-bit Real-Time Counter, and a Cryptographic Accelerator supporting AES, SHA, and TRNG. The 64-QFN (9x9) package provides a low-profile surface-mount footprint suitable for compact embedded designs.
Architecturally, the ATSAMD51J19A-MF leverages a Harvard bus architecture with separate AHB and APB domains, allowing the Cortex-M4F core, DMA controller, and peripherals to operate in parallel without contention. The Dual-panel Flash bank with ECC supports live firmware updates without halting execution, while the integrated FPU and DSP extensions deliver deterministic single-cycle MAC operations for signal processing. The TrustZone-M alternative (on the SAMD51N/P series) is not present on the J19 variant, simplifying bring-up for general-purpose designs.
Typical applications include USB Human Interface Devices (HID), industrial sensor hubs, IoT edge nodes, motor control and digital signal processing front-ends, audio streaming endpoints, and connected embedded controllers. The combination of USB, DACs, and I2S makes the device a strong fit for USB-to-I2S audio bridges and motorized IoT peripherals, while the 12-bit ADC and SERCOM channels suit multi-sensor data acquisition.
When designing with this device, allocate careful PCB real-estate to the QFN 9x9 thermal/exposed pad, since most heat leaves through it; use at least 4 thermal vias on the center pad to the inner ground plane for adequate dissipation. Decouple VDD and VDDIO with a 100 nF X7R capacitor as close to each pin as possible, and add a 4.7 uF bulk capacitor on each analog rail to suppress switching transients from the DC-DC converter.
Alternativas drop-in para ATSAMD51J19A-MF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAMD51J19A-MF (mesmo formato e footprint) — diferindo em Package, SRAM, USB, ADC, DAC.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAMD51J18A-MF
✅ Drop-In✓ Em estoque
$4.6 / unidade
Ver ficha técnica →ATSAMD51G18A-MF
✅ Drop-In✓ Em estoque
$5.11 / unidade
Ver ficha técnica →ATSAMD51G19A-MFT
✅ Drop-In✓ Em estoque
$4.02 / unidade
Ver ficha técnica →ATSAMD51J19A-AUT-EFP
✅ Drop-In✓ Em estoque
$4.45 / unidade
Ver ficha técnica →ATSAMD51J18A-AU-EFP
✅ Drop-In✓ Em estoque
$3.95 / unidade
Ver ficha técnica →ATSAMD21J18A-MF
✅ Drop-In✓ Em estoque
$3.6 / unidade
Ver ficha técnica →ATSAMD51J19A-MF Classificações máximas e características elétricas
| Core | ARM Cortex-M4F with FPU |
| Maximum Clock Speed | 120 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 192 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| ADC | 12-bit, 1 MSPS |
| DAC | 2x 12-bit, 1 MSPS |
| USB | Full-Speed USB 2.0 with on-chip PHY |
| GPIO Count | Up to 51 |
| Encapsulamento | 64-QFN (9x9 mm) with exposed pad |
| Temperatura de operação | -40C to +125C (extended) |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Cryptographic Accelerator | AES, SHA, TRNG |
| Serial Peripherals (SERCOM) | Up to 8 (configurable I2C/SPI/UART) |
Configuração de pinos do ATSAMD51J19A-MF
| Pino 1 | PA00 — GPIO / XIN32K (32.768 kHz crystal input) |
| Pino 2 | PA01 — GPIO / XOUT32K (32.768 kHz crystal output) |
| Pino 3 | PA02 — GPIO / AIN0 (ADC analog input) |
| Pino 4 | PA03 — GPIO / AIN1 / VREFA (ADC reference) |
| Pino 5 | PA04 — GPIO / AIN2 / VREFB |
| Pino 6 | PA05 — GPIO / AIN3 |
| Pino 7 | PA06 — GPIO / AIN4 |
| Pino 8 | PA07 — GPIO / AIN5 |
| Pino 9 | VDDIO — Digital I/O supply voltage |
| Pino 10 | GND — Ground reference |
| Pino 11 | PA08 — GPIO / AIN6 |
| Pino 12 | PA09 — GPIO / AIN7 |
| Pino 13 | PA10 — GPIO / AIN8 / SERCOM0 PAD2 |
| Pino 14 | PA11 — GPIO / AIN9 / SERCOM0 PAD3 |
| Pino 15 | PA12 — GPIO / SERCOM2 PAD0 |
| Pino 16 | PA13 — GPIO / SERCOM2 PAD1 |
| Pino 17 | PA14 — GPIO / SERCOM2 PAD2 |
| Pino 18 | PA15 — GPIO / SERCOM2 PAD3 |
| Pino 19 | PA16 — GPIO / SERCOM1 PAD0 / I2S SCK |
| Pino 20 | PA17 — GPIO / SERCOM1 PAD1 / I2S FS |
| Pino 21 | PA18 — GPIO / SERCOM1 PAD2 / I2S MCK |
| Pino 22 | PA19 — GPIO / SERCOM1 PAD3 / I2S SDO |
| Pino 23 | PA20 — GPIO / SERCOM3 PAD0 / I2S SDI |
| Pino 24 | PA21 — GPIO / SERCOM3 PAD1 |
| Pino 25 | PA22 — GPIO / SERCOM3 PAD2 |
| Pino 26 | PA23 — GPIO / SERCOM3 PAD3 / USB ID |
| Pino 27 | PA24 — GPIO / USB DM (USB minus data line) |
| Pino 28 | PA25 — GPIO / USB DP (USB plus data line) |
| Pino 29 | PA27 — GPIO |
| Pino 30 | PA28 — GPIO |
| Pino 31 | PA30 — GPIO / SWDIO (programming/debug) |
| Pino 32 | PA31 — GPIO / SWCLK (programming/debug) |
| Pino 33 | PB00 — GPIO |
| Pino 34 | PB01 — GPIO |
| Pino 35 | PB02 — GPIO / SERCOM5 PAD0 |
| Pino 36 | PB03 — GPIO / SERCOM5 PAD1 |
| Pino 37 | PB04 — GPIO / SERCOM5 PAD2 |
| Pino 38 | PB05 — GPIO / SERCOM5 PAD3 |
| Pino 39 | PB06 — GPIO / SERCOM4 PAD0 |
| Pino 40 | PB07 — GPIO / SERCOM4 PAD1 |
| Pino 41 | PB08 — GPIO / SERCOM4 PAD2 |
| Pino 42 | PB09 — GPIO / SERCOM4 PAD3 |
| Pino 43 | PB10 — GPIO / DAC0 (12-bit DAC output 0) |
| Pino 44 | PB11 — GPIO / DAC1 (12-bit DAC output 1) |
| Pino 45 | PB12 — GPIO |
| Pino 46 | PB13 — GPIO |
| Pino 47 | PB14 — GPIO |
| Pino 48 | PB15 — GPIO |
| Pino 49 | PB16 — GPIO |
| Pino 50 | PB17 — GPIO |
| Pino 51 | PB18 — GPIO |
| Pino 52 | PB19 — GPIO |
| Pino 53 | PB20 — GPIO |
| Pino 54 | PB21 — GPIO |
| Pino 55 | PB22 — GPIO |
| Pino 56 | PB23 — GPIO |
| Pino 57 | PB24 — GPIO |
| Pino 58 | PB25 — GPIO |
| Pino 59 | PB26 — GPIO |
| Pino 60 | PB27 — GPIO |
| Pino 61 | PB28 — GPIO |
| Pino 62 | PB29 — GPIO |
| Pino 63 | GND — Ground reference |
| Pino 64 | VDDIO — Digital I/O supply voltage |
| Pino EP | Exposed Pad — Thermal pad - solder to PCB ground plane for heat dissipation |
Aplicações típicas
ATSAMD51J19A-MF é adequado para 6 aplicaçãos: USB Human Interface Device (HID), Industrial Sensor Hub / Data Acquisition, USB-to-I2S Audio Bridge, IoT Edge Node / Connected Device, Motor Control and Digital Signal Processing Front-End, Connected Medical and Wearable Devices.
USB Human Interface Device (HID)
The ATSAMD51J19A-MF is well suited to USB HID designs because it integrates a Full-Speed USB 2.0 device port with on-chip PHY, removing the need for an external PHY chip. Its 120 MHz Cortex-M4F core easily handles HID class descriptors, button/keyboard matrices, and high-report-rate mouse or game controller protocols at 1000 Hz polling. The 512KB Flash and 192KB SRAM provide ample headroom for USB stacks plus rich device firmware. The 64-QFN (9x9) footprint keeps PCB size small, enabling compact dongle and embedded controller enclosures.
Recomendado
Industrial Sensor Hub / Data Acquisition
With 8 SERCOM channels supporting I2C/SPI/UART and a 12-bit 1 MSPS ADC, the ATSAMD51J19A-MF can aggregate data from multiple sensors in industrial settings. Its 120 MHz core runs DSP filtering on raw sensor streams in real time while DMA offloads conversion sequences to free the CPU for higher-level processing. The extended -40C to +125C operating range suits factory-floor cabinets, motor drives, and process control enclosures. The dual-panel Flash with ECC lets remote nodes update firmware in the field without service interruption.
Recomendado
USB-to-I2S Audio Bridge
The ATSAMD51J19A-MF can act as a USB-to-I2S audio bridge because it pairs a Full-Speed USB device interface with an I2S peripheral and two 12-bit 1 MSPS DACs. The Cortex-M4F core handles USB audio class enumeration and streaming while I2S delivers bit-perfect audio to an external DAC or codec. Hardware floating-point DSP allows on-the-fly sample-rate conversion and equalization. The 192KB SRAM holds multi-buffered audio frames without dropouts, and the 64-QFN keeps the design slim for headphone dongles and powered speakers.
Recomendado
IoT Edge Node / Connected Device
The ATSAMD51J19A-MF fits IoT edge nodes requiring on-device intelligence before cloud upload. Its Cortex-M4F core runs TensorFlow Lite Micro or CMSIS-NN inference at low power, while SERCOM channels connect to Wi-Fi or BLE modules. The Cryptographic Accelerator (AES, SHA, TRNG) secures over-the-air firmware updates and authenticated telemetry. Extended-temperature operation handles outdoor enclosures and industrial cabinets, and the exposed-pad QFN aids heat dissipation for sustained-edge workloads.
Recomendado
Motor Control and Digital Signal Processing Front-End
The ATSAMD51J19A-MF handles BLDC and stepper motor control loops thanks to its Cortex-M4F core, single-cycle MAC instructions, and high-resolution PWM timers. The Event System and DMA allow deterministic ADC-to-PWM latency, which is critical for field-oriented control of three-phase motors. Hardware floating-point simplifies coordinate transforms (Clarke/Park) and PI loop math. Its 12-bit ADC and dual 12-bit DACs permit precise current sensing and analog reference generation, while the 64-QFN package fits compact motor drive boards.
Recomendado
Connected Medical and Wearable Devices
The ATSAMD51J19A-MF is appropriate for connected medical peripherals such as glucose meters, pulse oximeters, and wearable health monitors. Its 12-bit ADC captures analog biosensor signals with high accuracy, while the integrated USB port charges the device and streams data to a host computer. The Cortex-M4F DSP extensions run on-device heart-rate variability and SpO2 algorithms in real time without offloading to the cloud. Extended-temperature operation and the small 64-QFN package support body-worn enclosures requiring compact, reliable designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAMD51J19A-MF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAMD51J18A-MF | ATSAMD51G18A-MF | ATSAMD51G19A-MFT | ATSAMD51J19A-AUT-EFP | ATSAMD21J18A-MF |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-QFN (9x9) | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same |
| Core Architecture | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M4F with FPU | ARM Cortex-M0+ (no FPU) |
| Maximum Clock Speed | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 48 MHz (-60%) |
| Flash Memory | 512 KB | 256 KB (-50%) | 256 KB (-50%) | 512 KB (match) | 512 KB (match) | 256 KB (-50%) |
| SRAM | 192 KB | 128 KB (-33%) | 128 KB (-33%) | 192 KB (match) | 192 KB (match) | 32 KB (-83%) |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C (automotive grade) | -40C to +125C |
| Cryptographic Accelerator | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG | AES / SHA / TRNG | Not available |
| USB 2.0 FS PHY | Integrated | Integrated | Integrated | Integrated | Integrated | Integrated |
| Automotive Grade | Industrial (-40C to +125C, no AEC-Q100) | Industrial | Industrial | Industrial | AEC-Q100 qualified | Industrial |
Principais diferenciais
- Cortex-M4F with hardware FPU and DSP extensions (vs ATSAMD21J18A-MF)
- Largest memory configuration in the J19A family (vs ATSAMD51J18A-MF)
- Extended temperature operating range (vs ATSAMD51J19A-AUT-EFP)
Notas de projeto
Estimated: At 120 MHz operation with 1.71 V supply and typical 30 mA active current, the ATSAMD51J19A-MF dissipates roughly 50 mW internally, well within the QFN-64 package's thermal limit. However, at extended temperature (125C) the device's leakage rises sharply; ensure PCB copper around the exposed pad is at least 25 mm² and stitch four 0.3 mm thermal vias through the pad to the internal ground plane for adequate heat extraction in enclosed enclosures.
Place a 100 nF X7R decoupling capacitor as close as possible to each VDDIO pin and a 4.7 uF X5R bulk capacitor on each power rail. For the analog supply VDDCORE, use an LC filter (10 uH + 4.7 uF) to isolate it from digital switching noise per Microchip's SAM D51 hardware design guidelines. Keep the SWD/SWCK traces short (under 50 mm) and protected from high-current paths to maintain debug reliability over the device's operational life.
Do not leave unused GPIO pins floating; configure them as outputs or enable internal pull-downs in firmware to prevent spurious current draw through the input buffer. The XIN32/XOUT32 pins for the 32.768 kHz crystal must use a crystal with load capacitance matching the SAM D51 datasheet's recommendations; mismatched capacitors cause RTC drift of several seconds per day. The USB DP/DM trace impedance must be 90 ohms differential per USB 2.0 specification - do not route across plane splits.
Informações de conformidade
RoHS compliant per Microchip product page. The ATSAMD51J19A-MF is industrial-grade (extended temperature), not AEC-Q100 qualified - choose ATSAMD51J19A-AUT or ATSAMD51J19A-AUT-EFP for automotive-grade applications.
