ATSAMD51P20A-CTUT - 120MHz Cortex-M4F MCU, 1MB Flash | Microchip
N.º de pieza: ATSAMD51P20A-CTUT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $14.68 | $14,68 |
| 10 | $13.55 | $135,50 |
| 100 | $12.42 | $1.242,00 |
| 500 | $11.3 | $5.650,00 |
| 1.000 | $10.45 | $10.450,00 |
ATSAMD51P20A-CTUT Descripción general
What is a Cortex-M4F microcontroller? An ARM Cortex-M4F microcontroller (MCU) is a 32-bit RISC processor core that adds a single-precision floating-point unit (FPU), DSP extensions (MAC, SIMD), and a Nested Vectored Interrupt Controller (NVIC). It sits within the ARM Cortex-M family (M0/M0+/M3/M4/M7/M33) and is positioned between the Cortex-M3 (no FPU, no DSP) and Cortex-M7 (higher clock, dual-issue). MCUs integrate the core with on-chip Flash, SRAM, peripherals (ADC, timers, communication), and sometimes radios or crypto accelerators, enabling single-chip embedded solutions.
Key features of the ATSAMD51P20A include 1 MB dual-panel Flash (allowing live read-while-write updates), 256 KB SRAM, a 120 MHz core with FPU DSP instructions, a 12-bit 1 Msps ADC with up to 16 channels, two 12-bit DACs, SERCOM (serial communication) interfaces configurable as UART/SPI/I2C, a Full-Speed USB 2.0 device/host/OTG controller, and a QSPI/SPI interface for external memory expansion. The device operates from 1.71V to 3.63V.
Architecturally the ATSAMD51P20A uses the Cortex-M4F core with a 4 KB instruction cache and branch prediction to sustain close to 1.25 DMIPS/MHz at 120 MHz. The peripheral set is event-driven via the Event System, allowing deterministic inter-peripheral signaling without CPU intervention. Hardware cryptographic accelerators (AES, SHA, Public Key Cryptography Controller) and a True Random Number Generator (TRNG) are integrated in the family, enabling secure boot and TLS-style key operations. The Dual-Panel Flash implements ECC on each 32-bit word to mitigate bit failures from radiation or aging.
Typical applications include industrial IoT sensor hubs, USB audio Class-D amplifier controllers, HMI panels with TFT displays, motor control via the integrated PWM timers and CCL (Configurable Custom Logic), low-power battery-powered wearables using the SAM D51 SleepWalking feature, and high-performance HMI with on-chip FPU driving audio and graphics pipelines. Designers favor this part when migrating from STM32F4-class MCUs that lack integrated USB OTG with the same package footprint density.
When designing with the ATSAMD51P20A-CTUT, follow the SAM D51 errata document and add decoupling capacitors per the recommended footprint. The 120-TFBGA package requires 4-layer or better PCB stack-up with microvia-in-pad capability; the exposed-pad-style thermal pad must be soldered to a ground copper pour for thermal dissipation and electrical reference.
Alternativas directas para ATSAMD51P20A-CTUT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAMD51P20A-CTUT (mismo factor de forma y huella) — difiere en Core Architecture, DAC, Package, USB, Mounting Type.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMD51P20A-CTUT-EFP
✅ Sustitución directa✓ En stock
$5.69 / unidad
Ver hoja de datos →ATSAMD51P19A-CTUT-EFP
✅ Sustitución directa✓ En stock
$5.74 / unidad
Ver hoja de datos →ATSAMD51P20A-CTUT Valores máximos y características eléctricas
| Core Architecture | ARM Cortex-M4F with FPU and DSP extensions |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 1 MB (Dual-Panel with ECC) |
| SRAM | 256 KB (with ECC) |
| Operating Voltage Range | 1.71 V to 3.63 V |
| ADC | 12-bit, up to 1 Msps, up to 16 channels |
| DAC | Two 12-bit DAC outputs |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| Communication Interfaces | SERCOM (UART/SPI/I2C), QSPI, I2S, CAN-FD |
| Encapsulado | 120-ball TFBGA (8x8 mm) |
| Temperatura de funcionamiento | -40 C to +85 C (industrial) |
| Tipo de montaje | Surface Mount (BGA) |
| Nivel MSL | 3 |
| Estado RoHS | Compliant |
| Cryptographic Acceleration | AES, SHA, Public Key Crypto Controller (PUKCC), TRNG |
Guía de configuración de pines de ATSAMD51P20A-CTUT 120-ball tfbga (8x8 mm)
Configuración de pines para ATSAMD51P20A-CTUT (encapsulado 120-ball tfbga (8x8 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para ATSAMD51P20A-CTUT.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ATSAMD51P20A-CTUT es adecuado para 6 aplicacións: USB Audio Class-D Amplifier Controller, Industrial IoT Sensor Hub, HMI Panel with TFT Display, BLDC/PMSM Motor Controller, Portable Medical Diagnostic Device, Smart Home Edge Gateway.
USB Audio Class-D Amplifier Controller
The ATSAMD51P20A-CTUT is well suited for USB-powered Class-D amplifier designs thanks to its integrated USB 2.0 Full-Speed OTG controller with on-chip PHY, two 12-bit DACs, and I2S peripheral for digital audio streaming. The Cortex-M4F DSP extensions enable real-time audio processing such as bass boost, EQ, and dynamic range compression without offloading to an external DSP. At 120 MHz the core sustains 48 kHz / 24-bit audio sample rates with CPU headroom for bi-directional USB audio streaming (USB headphone + microphone).
Recomendado
Industrial IoT Sensor Hub
The ATSAMD51P20A-CTUT functions as an industrial IoT gateway aggregating multiple sensor inputs via its 16-channel 12-bit ADC, six SERCOM channels configurable as UART/SPI/I2C, and CAN-FD for industrial networking. The 1 MB dual-panel Flash enables secure OTA firmware updates with read-while-write support, while hardware AES/SHA/TRNG provide on-chip TLS acceleration for MQTT/Sparkplug-B payloads. SAM D51 SleepWalking modes reduce idle current for solar/battery powered installations without sacrificing peripheral wake-up responsiveness.
Recomendado
HMI Panel with TFT Display
Driving 480x272 or 800x480 TFT displays from the ATSAMD51P20A-CTUT leverages its QSPI peripheral for fast graphics fetches, the Event System for deterministic touch-controller interrupt handling, and 256 KB SRAM for double-buffered framebuffers. The integrated 12-bit ADC reads resistive touchscreens while the SERCOM interfaces drive SPI displays at up to 60 MHz. The Cortex-M4F FPU accelerates LVGL / TouchGFX rendering for smooth menu transitions.
Recomendado
BLDC/PMSM Motor Controller
The ATSAMD51P20A-CTUT's 120 MHz Cortex-M4F with single-cycle MAC, 16-bit PWM timers with complementary outputs and dead-time insertion, and 1 Msps ADC make it a strong choice for field-oriented control (FOC) of 3-phase BLDC or PMSM motors. The Configurable Custom Logic (CCL) peripheral implements hardware overcurrent protection without CPU intervention, while the FPU executes FOC math within sub-microsecond loop times at 20 kHz PWM frequency. CAN-FD provides real-time communication with vehicle or industrial controllers.
Recomendado
Portable Medical Diagnostic Device
Battery-powered portable medical devices benefit from the ATSAMD51P20A-CTUT's SleepWalking peripherals that wake the CPU only when sensor data crosses configured thresholds, the Cortex-M4F DSP for ECG/EMG digital filtering, and the 12-bit ADC for low-noise biosignal acquisition. The 1 MB Flash stores algorithm code plus patient logs, while hardware AES secures patient data at rest. The 120-TFBGA 8x8 mm footprint fits compact handheld enclosures and the industrial temperature range supports clinical environments.
Recomendado
Smart Home Edge Gateway
The ATSAMD51P20A-CTUT acts as a Matter/Thread/Zigbee edge gateway aggregating local sensor data, running on-device ML inference on the Cortex-M4F with FPU, and bridging to cloud via the integrated USB 2.0 OTG (Ethernet adapter) or external Wi-Fi module. The 1 MB Flash hosts multiple wireless protocol stacks simultaneously, the 12-bit ADC monitors battery and supply voltages, and the TRNG seeds TLS session keys. The dual-panel Flash enables fail-safe OTA updates critical for always-on home infrastructure.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMD51P20A-CTUT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMD51P20A-CTUT-EFP | ATSAMD51P19A-CTUT-EFP | ATSAMD51P20A-AUT | ATSAMD51J20A-MFT |
|---|---|---|---|---|---|
| Package | 120-TFBGA (8x8 mm) | 120-TFBGA (8x8 mm) - same | 120-TFBGA (8x8 mm) - same | 64-TQFP - different | 64-QFN - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz |
| Flash | 1 MB | 1 MB | 512 KB | 1 MB | 1 MB |
| SRAM | 256 KB | 256 KB | 192 KB | 256 KB | 256 KB |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Operating Voltage | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V |
Diferenciadores clave
- Dual-panel Flash with live read-while-write OTA support (frente a ATSAMD51P19A-CTUT-EFP)
- Compact 120-TFBGA 8x8 mm footprint (frente a ATSAMD51P20A-AUT)
- Integrated USB 2.0 OTG with on-chip PHY (frente a STM32F407VGT6)
Notas de diseño
The 120-TFBGA package requires a 4-layer PCB stack-up with microvia-in-pad or filled-via construction for reliable BGA assembly. Place at least one 0.1 uF decoupling capacitor per VDD/VDDIO pin pair, plus a bulk 4.7 uF tantalum or ceramic capacitor within 5 mm of the package. The exposed pad balls must be soldered to a continuous ground copper pour with thermal vias (9-16 vias in a 3x3 grid recommended) to dissipate 200-300 mW typical active power.
Do not omit the external 32.768 kHz crystal on XIN/XOUT if RTC accuracy is required - the internal 32 kHz oscillator drifts 5-10% over temperature. Apply the SAM D51 silicon errata workaround for DMAC descriptor corruption (workaround: disable descriptor prefetch). Use the latest Atmel Studio 7 / MPLAB X IDE and ensure the OpenOCD or J-Link firmware supports the D5x DSU (Device Service Unit) at reset vector 0x00000000.
Estimated: at 120 MHz active CPU with all peripherals enabled, VDD = 3.3V, the core draws approximately 30-40 mA from VDDCORE (regulated internally). For battery applications, use PL0/PL2 power domains to gate unused SERCOM channels and ADC. The SAM D51 SleepWalking mode keeps peripherals running while the CPU is halted, achieving sub-100 uA/MHz active efficiency. Use a low-Iq LDO such as MCP1700 for the 3.3V rail in solar-powered designs.
Route the USB DP/DM pair as a 90 ohm differential pair with length matching within 150 mil. Keep the QSPI clock trace short (under 50 mm) and add a 33 ohm series damping resistor near the source for signals above 50 MHz. Place the 12 MHz crystal within 5 mm of XIN/XOUT with a continuous ground guard ring to suppress harmonics coupling into the ADC inputs.
Información de cumplimiento
RoHS compliant per Microchip product page. Industrial temperature range -40C to +85C. Not AEC-Q100 qualified - the SAM D51 automotive equivalent is the SAMDA1 family. Halogen-free and lead-free per Microchip environmental compliance documentation.
