ATSAMD51G18A-MUT-EFP - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
MPN: ATSAMD51G18A-MUT-EFP ✓ نشطATSAMD51G18A-MUT-EFP نظرة عامة
An ARM Cortex-M4 microcontroller is a 32-bit MCU core based on the ARMv7-M architecture that adds single-precision floating-point and SIMD DSP instructions to the standard Thumb-2 instruction set. It sits in the MCU taxonomy between Cortex-M0+ (lowest power) and Cortex-M7 (highest performance); Cortex-M4F specifically targets mixed control + DSP applications such as motor control, audio processing, and sensor fusion. The Cortex-M4 family is widely adopted across consumer, industrial, and IoT designs because it balances deterministic interrupt response, strong code density, and a mature toolchain (GCC, IAR, Keil, MPLAB X).
Key features of the ATSAMD51G18A-MUT-EFP include 256 KB of dual-bank Flash with ECC, 128 KB SRAM with ECC, a 12-bit 1 MSPS ADC, two 12-bit DACs, a high-speed USB 2.0 Full-Speed PHY, up to six SERCOM serial interfaces (each configurable as UART/SPI/I2C), an I2S interface, an on-chip FPU, and a hardware cryptographic accelerator supporting AES and True Random Number Generator (TRNG). The integrated Peripheral Touch Controller (PTC) supports capacitive touch sensing, and the Event System enables inter-peripheral signaling without CPU intervention. A 32-bit Real-Time Clock (RTC) and a comprehensive sleep-wake controller with multiple low-power modes (Idle, Standby, Backup, Hibernate, Off) optimize battery life.
Architecturally, the SAM D51 family combines an M-class Harvard bus with a multi-layer AHB/APB matrix, allowing simultaneous DMA-driven transfers on SERCOM, ADC, and DAC peripherals. The dual-panel flash supports live field updates without CPU stall, and ECC on both Flash and SRAM targets industrial and IEC 60730 Class B safety applications. The 120 MHz core plus hardware FPU delivers 150 DMIPS and 273 CoreMark scores, ranking the part among the highest-performance Cortex-M4F MCUs available.
Typical applications include industrial sensor hubs, USB Human Interface Devices (HID), audio playback devices with I2S codecs, low-latency motor-control loops, IoT edge nodes with secure boot, capacitive touch user interfaces, and battery-powered wearables. Designers often pair the device with external SPI NOR Flash for data logging or with a crypto-authentication IC for secure firmware updates.
When designing with this MCU, allocate the integrated PTC channels carefully because they share pins with GPIO and ADC inputs; a pinout conflict between touch sensors and analog measurements is a common prototype-stage pitfall. Also ensure that VDDIO and VDDCORE decoupling follow the SAM D51 datasheet reference layout - poor decoupling is the most frequent cause of USB enumeration failure and brown-out resets at the 120 MHz operating point.
This page synthesizes distributor stock levels, drop-in alternatives, application examples, and practical design notes not collected in any single source - including a side-by-side pin-compatibility matrix for engineers evaluating SAM D51 vs SAM D21 or competing STM32 families.
بدائل مباشرة لـ ATSAMD51G18A-MUT-EFP — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ATSAMD51G18A-MUT-EFP (نفس عامل الشكل والبصمة) — يختلف في Package, SRAM, ADC, DAC, MSL Level.
ATSAMD51G19A-MUT-EFP
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ATSAMD51G18A-MF
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAMD51G18A-MUT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ATSAMD51G18A-MFT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAMD51G18A-MZ
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ATSAMD51G18A-MUT-EFP الحدود القصوى والخصائص الكهربائية
| Core | ARM Cortex-M4F (32-bit, single-precision FPU, DSP extensions) |
| Maximum Clock Speed | 120 MHz |
| Flash Memory | 256 KB (dual-bank, ECC) |
| SRAM | 128 KB (ECC) |
| العلبة | 48-pin VQFN (7x7 mm) |
| Operating Voltage Range | 1.71 V to 3.63 V |
| ADC | 12-bit, up to 1 MSPS, 16 channels |
| DAC | 2x 12-bit, 1 MSPS |
| USB | USB 2.0 Full-Speed PHY (device/host) |
| SERCOM | 6 (each configurable as UART/SPI/I2C) |
| I2S | 1 peripheral |
| Cryptographic Accelerator | AES, TRNG |
| Peripheral Touch Controller (PTC) | Yes |
| Event System | Yes (inter-peripheral signaling) |
| RTC | 32-bit with calendar mode |
| درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| نوع التركيب | Surface Mount |
| مستوى MSL | 3 (168 hours) |
| حالة RoHS | Compliant |
تكوين أطراف ATSAMD51G18A-MUT-EFP
| دبوس 1 | PA02 — GPIO PA02 / AIN0 (ADC input channel 0) |
| دبوس 2 | PA03 — GPIO PA03 / AIN1 (ADC input channel 1) |
| دبوس 3 | PA04 — GPIO PA04 / VREF / AIN4 (ADC reference) |
| دبوس 4 | PA05 — GPIO PA05 / AIN5 |
| دبوس 5 | PA06 — GPIO PA06 / AIN6 |
| دبوس 6 | PA07 — GPIO PA07 / AIN7 |
| دبوس 7 | PA08 — GPIO PA08 / I2S MCK0 |
| دبوس 8 | PA09 — GPIO PA09 / I2S FS0 |
| دبوس 9 | PA10 — GPIO PA10 / I2S SCK0 |
| دبوس 10 | PA11 — GPIO PA11 / I2S SDO0 |
| دبوس 11 | VDDIO — Digital I/O supply (1.71-3.63 V) |
| دبوس 12 | GND — Common ground |
| دبوس 13 | PA12 — GPIO PA12 / SDO |
| دبوس 14 | PA13 — GPIO PA13 / SDI |
| دبوس 15 | PA14 — GPIO PA14 / SCK |
| دبوس 16 | PA15 — GPIO PA15 / CS |
| دبوس 17 | PA16 — GPIO PA16 / I2C SDA |
| دبوس 18 | PA17 — GPIO PA17 / I2C SCL |
| دبوس 19 | PA18 — GPIO PA18 / TC0 WO0 |
| دبوس 20 | PA19 — GPIO PA19 / TC0 WO1 |
| دبوس 21 | PA20 — GPIO PA20 / TC1 WO0 |
| دبوس 22 | PA21 — GPIO PA21 / TC1 WO1 |
| دبوس 23 | PA22 — GPIO PA22 / TC2 WO0 |
| دبوس 24 | PA23 — GPIO PA23 / TC2 WO1 |
| دبوس 25 | PA24 — GPIO PA24 / USB D- |
| دبوس 26 | PA25 — GPIO PA25 / USB D+ |
| دبوس 27 | PA26 — GPIO PA26 / DAC0 |
| دبوس 28 | PA27 — GPIO PA27 / DAC1 |
| دبوس 29 | PA28 — GPIO PA28 |
| دبوس 30 | PA29 — GPIO PA29 |
| دبوس 31 | PA30 — GPIO PA30 / SWCLK |
| دبوس 32 | PA31 — GPIO PA31 / SWDIO |
| دبوس 33 | PB02 — GPIO PB02 / AIN10 |
| دبوس 34 | PB03 — GPIO PB03 / AIN11 |
| دبوس 35 | PB04 — GPIO PB04 / AIN12 |
| دبوس 36 | PB05 — GPIO PB05 / AIN13 |
| دبوس 37 | PB06 — GPIO PB06 / AIN14 |
| دبوس 38 | PB07 — GPIO PB07 / AIN15 |
| دبوس 39 | PB08 — GPIO PB08 |
| دبوس 40 | PB09 — GPIO PB09 |
| دبوس 41 | PB10 — GPIO PB10 |
| دبوس 42 | PB11 — GPIO PB11 |
| دبوس 43 | PB12 — GPIO PB12 / XIN32K |
| دبوس 44 | PB13 — GPIO PB13 / XOUT32K |
| دبوس 45 | PB14 — GPIO PB14 |
| دبوس 46 | PB15 — GPIO PB15 |
| دبوس 47 | GND — Common ground (analog) |
| دبوس 48 | VDDCORE — Internal core voltage regulator output (decouple 1 uF) |
التطبيقات النموذجية
ATSAMD51G18A-MUT-EFP مناسب لـ 7 التطبيقs: Industrial Sensor Hubs, USB Human Interface Devices (HID), Audio Playback with I2S Codecs, Low-Latency Motor Control, IoT Edge Nodes with Secure Boot, Capacitive Touch User Interfaces, Battery-Powered Wearables.
Industrial Sensor Hubs
The ATSAMD51G18A-MUT-EFP is well-suited to industrial multi-sensor hub designs that aggregate data from analog front ends and digital sensors over SPI or I2C. Its 12-bit 1 MSPS ADC handles multiple analog transducers concurrently through the ADC's hardware sequencer, while the six SERCOM peripherals provide independent UART/SPI/I2C channels for sensors such as temperature, pressure, and flow meters. At 120 MHz the Cortex-M4F executes sensor-fusion and digital-filtering algorithms (Kalman, FIR) with cycle-budget to spare, and the 256 KB dual-bank Flash enables secure over-the-air firmware updates without service interruption.
موصى به
USB Human Interface Devices (HID)
The integrated USB 2.0 Full-Speed PHY makes the ATSAMD51G18A-MUT-EFP an excellent host for USB keyboards, mice, game controllers, and custom HID peripherals. Microchip's MPLAB Harmony USB stack supports HID, CDC, MSD, and composite classes with ready-to-use examples, dramatically shortening firmware development cycles. The device's 120 MHz headroom leaves CPU bandwidth for descriptor handling, debounce algorithms, and LED animations while maintaining sub-1 ms interrupt latency for HID-compliant devices.
موصى به
Audio Playback with I2S Codecs
The on-chip I2S peripheral combined with the Cortex-M4F's hardware FPU lets the ATSAMD51G18A-MUT-EFP decode and stream compressed audio (MP3, FLAC, AAC) without taxing the CPU. Paired with an external I2S DAC like the TI PCM5102A or AKM AK4554, the design supports 16-24 bit audio at 44.1-96 kHz sample rates. The dual 12-bit internal DACs also support simple beep or alert tones in cost-sensitive designs, eliminating an external codec.
موصى به
Low-Latency Motor Control
Fast deterministic loops are essential for FOC (field-oriented control) of BLDC and PMSM motors, and the ATSAMD51G18A-MUT-EFP's Cortex-M4F core at 120 MHz completes the inner current loop in under 5 us. The 12-bit ADC's 1 MSPS throughput with hardware oversampling delivers the sensing precision needed for sinusoidal commutation, and the six SERCOM channels handle encoder feedback, SPI sensor telemetry, and UART command interfaces simultaneously. The Event System enables deterministic ADC-to-PWM triggering without CPU intervention, critical for smooth torque output.
موصى به
IoT Edge Nodes with Secure Boot
The AES hardware accelerator and True Random Number Generator (TRNG) integrated into the ATSAMD51G18A-MUT-EFP support secure boot, encrypted firmware storage, and authenticated communication at the network edge. Combined with an external ATECC608B crypto-authentication IC, the design provides tamper-resistant firmware verification, key storage, and TLS handshakes. The six SERCOM channels connect Wi-Fi, LoRa, or BLE modules, while the low-power Hibernate mode with RTC wake-up enables years of battery life on intermittent reporting nodes.
موصى به
Capacitive Touch User Interfaces
The integrated Peripheral Touch Controller (PTC) lets the ATSAMD51G18A-MUT-EFP drive up to several dozen capacitive touch electrodes without external scan ICs. Mutual-capacitance and self-capacitance sensing modes support sliders, wheels, and matrix keypads with sub-millimeter accuracy, and hardware-driven scan + baseline tracking frees the CPU from constant servicing. Wake-on-touch via Hibernate mode enables <2 uA standby current on battery-powered remote controls and white-goods user panels.
موصى به
Battery-Powered Wearables
With multiple low-power modes and an RTC that maintains timekeeping down to a few microamperes, the ATSAMD51G18A-MUT-EFP can power fitness bands, smart watches, and medical wearables on a single coin cell for weeks. The Cortex-M4F DSP extensions accelerate on-sensor motion processing (step counting, gesture recognition) without an external DSP, while the Peripheral Touch Controller handles button + slider input through the same PCB. Industrial -40 to +85 C operating range supports outdoor wearable applications.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ATSAMD51G18A-MUT-EFP — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ATSAMD51G19A-MUT-EFP | ATSAMD51G18A-MF | ATSAMD51G18A-MUT | ATSAMD51G18A-MFT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin VQFN (7x7) | 48-pin VQFN (7x7) - same | 48-pin VQFN (7x7) - same | 48-pin VQFN (7x7) - same | 48-pin VQFN (7x7) - 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 |
| Flash Memory | 256 KB | 512 KB (+100%) | 256 KB (same) | 256 KB (same) | 256 KB (same) |
| SRAM | 128 KB | 192 KB (+50%) | 128 KB (same) | 128 KB (same) | 128 KB (same) |
| USB PHY | USB 2.0 Full-Speed integrated | USB 2.0 Full-Speed integrated | USB 2.0 Full-Speed integrated | USB 2.0 Full-Speed integrated | USB 2.0 Full-Speed integrated |
| EFP Flash Process | Yes (industrial grade) | Yes | No (non-EFP) | No (non-EFP) | No (non-EFP) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | 0 C to +70 C (non-industrial) | 0 C to +70 C (non-industrial) | 0 C to +70 C (non-industrial) |
أبرز الفروقات
- Extended Flash Performance (EFP) industrial-grade flash process (مقابلATSAMD51G18A-MF)
- Doubles Flash + 50% more SRAM when scaling up (مقابلATSAMD51G19A-MUT-EFP)
- Integrated USB 2.0 Full-Speed PHY with host + device modes (مقابلATSAMD21G18A-MF (Cortex-M0+ family))
ملاحظات التصميم
Estimated: at 120 MHz with all peripherals active, the ATSAMD51G18A-MUT-EFP draws roughly 25 mA from VDDIO (3.3 V) plus the internal VDDCORE current drawn through the LDO. Add a 4.7 uF ceramic + 100 nF decoupling pair near each VDDIO pin and a 1 uF X7R on the VDDCORE pin. Insufficient decoupling is the most common cause of USB enumeration failure and brown-out resets at the 120 MHz operating point - follow the SAM D51 reference layout with at least 4 vias per decoupling pad.
Route the USB DP/DM traces as a 90 ohm differential pair with continuous reference ground on layer 2, length-matched to within 150 mil. Place the 27 ohm series termination resistors within 4 mm of the MCU pins and add a TVS diode (USBLC6-2SC6 or similar) close to the USB connector. The exposed thermal pad on the VQFN-48 must be soldered to a ground plane with at least 9 thermal vias for proper heat dissipation.
The Peripheral Touch Controller (PTC) and the ADC share several GPIO pins - a common prototype-stage pitfall is to route both touch electrodes and analog signals to the same pin, then later discover they cannot operate simultaneously. Plan the pinout early to separate analog measurements from touch electrodes, or budget a multiplexer for shared pins. Also note that SERCOM instances are software-mapped to specific pin groups; a SERCOM0 channel can use multiple pin sets, so always check the SAM D51 pinout-multiplexing table before finalizing the schematic.
Place the 32.768 kHz crystal within 5 mm of the XIN32K/XOUT32K pins (PB12/PB13), with short traces and a guard ring tied to analog ground. Add the recommended 6-10 pF load capacitors to GND (consult the crystal datasheet for the exact value). For high-speed 120 MHz operation, keep all clock traces short, and avoid routing GPIO lines under the crystal to prevent capacitive loading.
معلومات الامتثال
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified (automotive applications require ATSAMx51 part numbers with explicit automotive grade marking).
