ATSAMD51N19A-AF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
Артикул: ATSAMD51N19A-AF ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.42 | $8,42 |
| 10 | $7.58 | $75,80 |
| 100 | $6.74 | $674,00 |
| 500 | $6.05 | $3.025,00 |
| 1.000 | $5.41 | $5.410,00 |
ATSAMD51N19A-AF Обзор
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals around a common bus. Within the embedded semiconductor taxonomy, MCUs sit below microprocessors (which require external memory) and above basic ASICs in capability. The SAM D51 family is positioned as a high-performance general-purpose MCU, using the ARM Cortex-M4F core with single-precision FPU to accelerate DSP and floating-point control loops. ECC-protected Flash and SRAM target safety-critical and industrial applications where soft-error reliability matters.
Key features of the ATSAMD51N19A-AF include 120 MHz core clock with DSP extensions, 512 KB dual-panel Flash, up to 192 KB SRAM, six SERCOM modules configurable as UART/SPI/I2C, one full-speed USB 2.0 device/host, up to 12-bit 1 MSPS ADC with up to 16 channels, dual 12-bit DACs, four TC capture/compare/PWM channels, and a True Random Number Generator. The device supports 1.62V-3.6V supply and an extended industrial temperature range of -40C to +125C.
Architecturally, the ATSAMD51N19A-AF uses a 5-stage pipeline ARM Cortex-M4F core with single-precision FPU, MPU, and CoreSight debug. The dual-panel Flash allows simultaneous read/write, enabling live firmware updates without CPU stalls. The peripheral event system enables deterministic inter-peripheral signaling without CPU intervention, critical for motor control and power conversion applications.
Typical applications include industrial control (PLC I/O modules, motor drives), IoT edge nodes with secure TLS acceleration, USB peripherals (HID, CDC, composite), human-machine interfaces (HMI) with TFT touch control, audio processing with on-chip DAC, and portable instrumentation. The integrated crypto engine also suits secure-boot and OTA update designs.
When designing with the ATSAMD51N19A-AF, ensure decoupling follows the datasheet reference layout with 100 nF caps at each supply pin and a bulk 4.7 uF cap near the package. The TC and ADC reference grounds must be tied to a low-impedance analog ground plane. Verify the extended temperature option (-AF suffix) matches your application's thermal envelope.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, providing comparison-ready data for sourcing decisions.
Аналоги без доработки для ATSAMD51N19A-AF — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ATSAMD51N19A-AF (тот же форм-фактор и посадочное место) — отличается по USB, DAC, Operating Temperature, Package, ADC.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ATSAMD51N19A-AFT
✅ Прямая замена✓ В наличии
$4.8 / шт.
Открыть даташит →ATSAMD51J20A-MF
✅ Прямая замена✓ В наличии
$5.2 / шт.
Открыть даташит →ATSAMD51J20A-MFT
✅ Прямая замена✓ В наличии
$5.1 / шт.
Открыть даташит →ATSAMD51J19A-MF
✅ Прямая замена✓ В наличии
$5.4 / шт.
Открыть даташит →ATSAMD51J18A-AU-EFP
✅ Прямая замена✓ В наличии
$3.95 / шт.
Открыть даташит →ATSAMD51G19A-MFT
✅ Прямая замена✓ В наличии
$4.02 / шт.
Открыть даташит →ATSAMD51N19A-AF Максимальные параметры и электрические характеристики
| Core Architecture | ARM Cortex-M4F with FPU |
| Maximum CPU Frequency | 120 MHz |
| Program Flash Memory | 512 KB (dual-panel, with ECC) |
| SRAM | 192 KB (with ECC) |
| Корпус | 100-pin TQFP (14x14 mm) |
| Operating Voltage | 1.62 V to 3.6 V |
| Рабочая температура | -40C to +125C (extended) |
| ADC | 12-bit, up to 1 MSPS |
| DAC | Dual 12-bit |
| USB | USB 2.0 Full-Speed device/host |
| SERCOM Modules | 6 (configurable UART/SPI/I2C) |
| Crypto Engine | AES, SHA, TRNG |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
| Уровень MSL | 3 (168 hours) |
Конфигурация выводов ATSAMD51N19A-AF
| Контакт 1 | VDDIO — Digital I/O supply voltage |
| Контакт 2 | PA00 — I/O line A00 (GPIO, analog) |
| Контакт 3 | PA01 — I/O line A01 (GPIO, analog) |
| Контакт 4 | PA02 — I/O line A02 (GPIO, analog) |
| Контакт 5 | PA03 — I/O line A03 (GPIO, analog) |
| Контакт 6 | GND — Ground |
| Контакт 7 | PA04 — I/O line A04 (GPIO, analog) |
| Контакт 8 | PA05 — I/O line A05 (GPIO, analog) |
| Контакт 9 | PA06 — I/O line A06 (GPIO, analog) |
| Контакт 10 | PA07 — I/O line A07 (GPIO, analog) |
| Контакт 11 | VDDIO — Digital I/O supply voltage |
| Контакт 12 | PA08 — SERCOM0/PAD0 or GPIO |
| Контакт 13 | PA09 — SERCOM0/PAD1 or GPIO |
| Контакт 14 | PA10 — SERCOM0/PAD2 or GPIO |
| Контакт 15 | PA11 — SERCOM0/PAD3 or GPIO |
| Контакт 16 | PA12 — SERCOM1/PAD0 or GPIO |
| Контакт 17 | PA13 — SERCOM1/PAD1 or GPIO |
| Контакт 18 | PA14 — SERCOM1/PAD2 or GPIO |
| Контакт 19 | PA15 — SERCOM1/PAD3 or GPIO |
| Контакт 20 | GND — Ground |
| Контакт 21 | PA16 — SERCOM2/PAD0 or GPIO |
| Контакт 22 | PA17 — SERCOM2/PAD1 or GPIO |
| Контакт 23 | PA18 — SERCOM2/PAD2 or GPIO |
| Контакт 24 | PA19 — SERCOM2/PAD3 or GPIO |
| Контакт 25 | PA20 — SERCOM3/PAD0 or GPIO |
| Контакт 26 | PA21 — SERCOM3/PAD1 or GPIO |
| Контакт 27 | PA22 — SERCOM3/PAD2 or GPIO |
| Контакт 28 | PA23 — SERCOM3/PAD3 or GPIO |
| Контакт 29 | PA24 — USB DP or GPIO |
| Контакт 30 | PA25 — USB DM or GPIO |
| Контакт 31 | VDDIO — Digital I/O supply voltage |
| Контакт 32 | GND — Ground |
| Контакт 33 | PB00 — I/O line B00 (GPIO, analog) |
| Контакт 34 | PB01 — I/O line B01 (GPIO, analog) |
| Контакт 35 | PB02 — SERCOM4/PAD0 or GPIO |
| Контакт 36 | PB03 — SERCOM4/PAD1 or GPIO |
| Контакт 37 | PB04 — SERCOM4/PAD2 or GPIO |
| Контакт 38 | PB05 — SERCOM4/PAD3 or GPIO |
| Контакт 39 | PB06 — SERCOM5/PAD0 or GPIO |
| Контакт 40 | PB07 — SERCOM5/PAD1 or GPIO |
| Контакт 41 | PB08 — SERCOM5/PAD2 or GPIO |
| Контакт 42 | PB09 — SERCOM5/PAD3 or GPIO |
| Контакт 43 | GND — Ground |
| Контакт 44 | PB10 — I/O line B10 (GPIO, analog) |
| Контакт 45 | PB11 — I/O line B11 (GPIO, analog) |
| Контакт 46 | PB12 — TC0/WO0 or GPIO |
| Контакт 47 | PB13 — TC0/WO1 or GPIO |
| Контакт 48 | PB14 — TC1/WO0 or GPIO |
| Контакт 49 | PB15 — TC1/WO1 or GPIO |
| Контакт 50 | PB16 — TC2/WO0 or GPIO |
| Контакт 51 | PB17 — TC2/WO1 or GPIO |
| Контакт 52 | VDDIO — Digital I/O supply voltage |
| Контакт 53 | PB18 — I/O line B18 (GPIO, analog) |
| Контакт 54 | PB19 — I/O line B19 (GPIO, analog) |
| Контакт 55 | PB20 — I/O line B20 (GPIO, analog) |
| Контакт 56 | PB21 — I/O line B21 (GPIO, analog) |
| Контакт 57 | PB22 — I/O line B22 (GPIO, analog) |
| Контакт 58 | PB23 — I/O line B23 (GPIO, analog) |
| Контакт 59 | PB24 — I/O line B24 (GPIO, analog) |
| Контакт 60 | PB25 — I/O line B25 (GPIO, analog) |
| Контакт 61 | PC00 — I/O line C00 (GPIO, analog) |
| Контакт 62 | PC01 — I/O line C01 (GPIO, analog) |
| Контакт 63 | PC02 — I/O line C02 (GPIO, analog) |
| Контакт 64 | PC03 — I/O line C03 (GPIO, analog) |
| Контакт 65 | VDDCORE — Core voltage output (LDO) |
| Контакт 66 | GND — Ground |
| Контакт 67 | VDDIN — Main voltage regulator input |
| Контакт 68 | PC04 — I/O line C04 (GPIO, analog) |
| Контакт 69 | PC05 — I/O line C05 (GPIO, analog) |
| Контакт 70 | PC06 — I/O line C06 (GPIO, analog) |
| Контакт 71 | PC07 — I/O line C07 (GPIO, analog) |
| Контакт 72 | PC08 — SERCOM6/PAD0 or GPIO |
| Контакт 73 | PC09 — SERCOM6/PAD1 or GPIO |
| Контакт 74 | PC10 — SERCOM6/PAD2 or GPIO |
| Контакт 75 | PC11 — SERCOM6/PAD3 or GPIO |
| Контакт 76 | PC12 — SERCOM7/PAD0 or GPIO |
| Контакт 77 | PC13 — SERCOM7/PAD1 or GPIO |
| Контакт 78 | PC14 — SERCOM7/PAD2 or GPIO |
| Контакт 79 | PC15 — SERCOM7/PAD3 or GPIO |
| Контакт 80 | GND — Ground |
| Контакт 81 | PC16 — I/O line C16 (GPIO, analog) |
| Контакт 82 | PC17 — I/O line C17 (GPIO, analog) |
| Контакт 83 | PC18 — I/O line C18 (GPIO, analog) |
| Контакт 84 | PC19 — I/O line C19 (GPIO, analog) |
| Контакт 85 | PC20 — I/O line C20 (GPIO, analog) |
| Контакт 86 | PC21 — I/O line C21 (GPIO, analog) |
| Контакт 87 | PC22 — I/O line C22 (GPIO, analog) |
| Контакт 88 | PC23 — I/O line C23 (GPIO, analog) |
| Контакт 89 | PD00 — I/O line D00 (GPIO, analog) |
| Контакт 90 | PD01 — I/O line D01 (GPIO, analog) |
| Контакт 91 | PD02 — I/O line D02 (GPIO, analog) |
| Контакт 92 | PD03 — I/O line D03 (GPIO, analog) |
| Контакт 93 | PD04 — I/O line D04 (GPIO, analog) |
| Контакт 94 | PD05 — I/O line D05 (GPIO, analog) |
| Контакт 95 | PD06 — I/O line D06 (GPIO, analog) |
| Контакт 96 | PD07 — I/O line D07 (GPIO, analog) |
| Контакт 97 | PD08 — I/O line D08 (GPIO, analog) |
| Контакт 98 | PD09 — I/O line D09 (GPIO, analog) |
| Контакт 99 | RESET_N — Active-low reset input |
| Контакт 100 | VDDIO — Digital I/O supply voltage |
Типичное применение
ATSAMD51N19A-AF подходит для 6 применениеs: Industrial Control (PLC I/O Modules, Motor Drives), IoT Edge Nodes with TLS Acceleration, USB Peripherals (HID, CDC, Composite), Human-Machine Interfaces (HMI) with TFT Touch, Audio Processing with On-Chip DAC, Portable Instrumentation and Data Loggers.
Industrial Control (PLC I/O Modules, Motor Drives)
The ATSAMD51N19A-AF fits industrial PLC and motor-drive applications thanks to its 120 MHz Cortex-M4F core, hardware FPU for field-oriented control, and 192 KB SRAM for control-loop buffers. Its six SERCOM modules can drive UART to operator panels, SPI to gate drivers, and I2C to sensor chains simultaneously. The 12-bit 1 MSPS ADC samples current and voltage feedback accurately, while dual 12-bit DACs generate analog reference signals. Extended -40C to +125C temperature range tolerates factory-floor thermal stress. The integrated crypto engine supports signed firmware for functional-safety designs.
Рекомендуется
IoT Edge Nodes with TLS Acceleration
The ATSAMD51N19A-AF suits secure IoT edge nodes because the on-chip crypto engine accelerates AES-128/256 and SHA-2, offloading TLS handshakes from the CPU. The USB 2.0 Full-Speed interface enables direct tethering to gateways, while SERCOM ports interface LoRa, Wi-Fi, or BLE modules. 192 KB SRAM hosts TLS session buffers and MQTT payload queues without external memory. The dual-panel Flash supports secure over-the-air firmware updates. Operating from 1.62V to 3.6V permits direct Li-ion battery connection.
Рекомендуется
USB Peripherals (HID, CDC, Composite)
The ATSAMD51N19A-AF is ideal for USB peripherals due to its integrated USB 2.0 Full-Speed controller with on-chip transceiver. The Microchip ASF and MPLAB Harmony stacks provide ready-to-use HID, CDC, MSD, and composite class drivers. Cortex-M4F at 120 MHz handles protocol stack and application logic without external MCU support. 512 KB Flash stores composite descriptor tables plus application code. The 100-pin TQFP gives ample I/O for buttons, LEDs, and downstream SPI peripherals in human-interface devices.
Рекомендуется
Human-Machine Interfaces (HMI) with TFT Touch
The ATSAMD51N19A-AF drives TFT-LCD HMI panels with its high-speed SERCOM channels connecting to SPI-based display controllers. The Cortex-M4F core renders graphics via lightweight LVGL or emWin stacks in 192 KB SRAM. 12-bit ADC reads resistive touch coordinates accurately. The crypto engine secures HMI passwords and operator credentials. Extended temperature range supports outdoor kiosk and industrial panel deployments. Multiple TC channels generate PWM backlight dimming and buzzer tones.
Рекомендуется
Audio Processing with On-Chip DAC
The ATSAMD51N19A-AF delivers up to 16-bit audio quality through its dual 12-bit DACs at 1 MSPS, sufficient for voice prompts, alert tones, and simple waveform synthesis. Cortex-M4F DSP extensions accelerate FFT and biquad filtering in real time. SERCOM channels drive external I2S codecs for higher-fidelity paths. 192 KB SRAM buffers multi-second audio chunks without external memory. The USB Full-Speed interface streams 16 kHz audio to host PCs.
Рекомендуется
Portable Instrumentation and Data Loggers
The ATSAMD51N19A-AF fits portable instruments because its Cortex-M4F core processes sensor data, the 12-bit ADC digitizes multiple channels at 1 MSPS, and 192 KB SRAM stores acquisition buffers. USB Full-Speed enables real-time data streaming to a host PC. The 1.62V-3.6V supply range supports direct Li-ion battery operation with no external LDO. The crypto engine secures proprietary measurement data on removable media via SD-card interface.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ATSAMD51N19A-AF — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ATSAMD51N19A-AFT | ATSAMD51J20A-MF | ATSAMD51J19A-MF | ATSAMD51J18A-AU | ATSAMD51G19A-MFT |
|---|---|---|---|---|---|---|
| Package | TQFP-100 (14x14 mm) | TQFP-100 (14x14 mm) - same | LQFP-100 - same footprint family | QFN-64 (not pin-compatible) | LQFP-100 - same footprint family | QFN-48 (not pin-compatible) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 | 1024 KB | 512 KB | 256 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 256 KB | 192 KB | 128 KB | 192 KB |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +125C |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| Crypto Engine | AES, SHA, TRNG | AES, SHA, TRNG | AES, SHA, TRNG | AES, SHA, TRNG | AES, SHA, TRNG | AES, SHA, TRNG |
Ключевые отличия
- Highest memory density in TQFP-100 SAM D51 family at 512 KB Flash + 192 KB SRAM (против ATSAMD51J18A-AU)
- Extended -40C to +125C industrial temperature range (против ATSAMD51J18A-AU)
- Tray packaging optimized for prototyping and low-volume assembly (против ATSAMD51N19A-AFT)
Заметки по проектированию
Place a 100 nF decoupling capacitor within 2 mm of every VDDIO and VDDIN pin, plus one bulk 4.7 uF ceramic near the package. The internal LDO that generates VDDCORE requires a 1 uF low-ESR output cap on the VDDCORE pin. Routing the analog supply AVVDD through a ferrite bead from VDDIN isolates ADC noise; failure to do this can couple switching noise into ADC measurements and reduce effective ENOB.
The TQFP-100 package has a theta_JA around 50 C/W on a standard 4-layer JEDEC test board. At full CPU load running 120 MHz with all peripherals active, typical dissipation is around 200 mW, yielding a 10C rise above ambient. For industrial -40C to +125C operation, ensure ambient does not push junction above 125C. Wide copper pours beneath exposed pads and on inner layers reduce theta_JA to around 30 C/W.
The ATSAMD51N19A-AF pinout follows the SAM D51 family convention with PAxx/ PBxx/ PCxx/ PDxx ports grouped together and SERCOM alternate functions color-mapped in the datasheet. Maintain continuous ground plane under the MCU to provide low-impedance return paths for SERCOM and USB signals. Route USB DP/DM as a 90 ohm differential pair with length matching within 2 mm. Place the 32.768 kHz crystal within 5 mm of the XIN32/XOUT32 pins to minimize parasitic capacitance.
Do not skip configuring the NVMCTRL peripheral to enable dual-panel Flash and ECC; if left at default single-panel mode, write performance is reduced and ECC errors trigger unwanted NMI. To use USB, the VBUS pin must see 5V through a 10k pull-up divider, and the UDIV clock must be sourced from DFLL or PLL - not from the untrimmed 48 MHz RC. The crypto engine requires the ICache and DMA to be enabled to reach its AES throughput targets.
Информация о соответствии
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive ASIL designs, contact Microchip about ATSAME54/ATSAMV71 AEC-Q100 variants. MSL-3 moisture sensitivity level per JEDEC J-STD-020.
