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ATSAMD51P20A-AU

MCHPATSAMD51P20A-AU

Microchip Technology
ARM® Cortex®-M4F SAM D51 Microcontroller IC 32-Bit 120MHz 1MB (1M x 8) FLASH 128-TQFP (14x14)
Active12 in stock
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Overview

The ATSAMD51P20A-AU is a high-performance microcontroller featuring a 120MHz ARM Cortex-M4F core with a floating-point unit (FPU). It provides 1MB of Flash and 256KB of RAM, making it suitable for complex processing tasks and data-heavy embedded applications. The device includes a rich set of peripherals, including a 32-channel 12b ADC and dual 12b DACs for precision analog interfacing.

Why Choose This Part

The SAM D51 offers a significant performance boost over the SAM D21 series while maintaining a familiar peripheral set. It excels in power-to-performance efficiency and provides extensive connectivity options including EBI/EMI for external bus expansion and a high pin count for complex system integration.

Applications

High-Speed Data Logging
Utilizes the integrated SDHC interface and large SRAM to buffer and write data to MMC/SD cards efficiently.
Digital Signal Processing
Leverages the Cortex-M4F core and 120MHz clock speed for real-time filtering and audio processing using the I2S interface.
Industrial User Interfaces
The 99 I/O pins and QSPI interface support complex displays and external memory for rich graphical interfaces.
USB Peripheral Devices
Features integrated USB connectivity for creating custom HID, MIDI, or CDC class devices without external controllers.

Key Specifications

Speed 120MHz
RAM Size 256K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM
Connectivity EBI/EMI, I2C, IrDA, LINbus, MMC/SD, QSPI, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 99
Core Processor ARM Cortex-M4F
Package / Case 128-TQFP
Data Converters A/D 32x12b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 1MB (1M x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 128-TQFP (14x14)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.63V

Getting Started

Developers can use the Microchip Curiosity Ultra or SAM D51 Evaluation Kit to begin prototyping. Software development is supported through Microchip Studio or MPLAB X IDE, utilizing the Advanced Software Framework (ASF4) or Harmony for driver configuration.

Dev Boards

Development boards and breakout modules featuring the ATSAMD51P20A-AU or compatible chips — ready to use for prototyping.

Adafruit Feather M4 Express Adafruit Industries LLC
ATSAMD51J19 Feather M4 Express SAM D ARM® Cortex®-M4 MCU 32-Bit Embedded Evaluation Board
Digi-Key 239 in stock
SAMD51 - Motor Controller/Driver Interface Evaluation Board
Digi-Key Mouser 16 in stock
Wio Terminal Seeed Technology Co., Ltd
ATSAMD51 Wio ARM® Cortex®-M4F MCU 32-Bit Embedded Evaluation Board
Digi-Key 497 in stock
Adafruit HalloWing M4 Express Adafruit Industries LLC
ATSAMD51G18 HalloWing M4 Express SAM D ARM® Cortex®-M4 MCU 32-Bit Embedded Evaluation Board
Development Boards & Kits - ARM Metro M4 feat. Microchip ATSAMD51
Mouser 73 in stock

ATSAMD51P Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number RAM Flash Temp Range Stock
ATSAMD51P20A-AU (this part) 256K 1MB -40degC ~ 85degC (.. 12
ATSAMD51P19A-AU 192K 512KB -40degC ~ 85degC (.. 2,508
ATSAMD51P20A-AFT 256K 1MB -40degC ~ 125degC .. —

Also Consider

STM32F405RGT6 STMicroelectronics - Offers a comparable 168MHz Cortex-M4 core with 1MB Flash, frequently used as an industry alternative for high-performance general purpose tasks.
ATSAMD51N19A-AU MCHPMicrochip Technology - A smaller 100-pin TQFP variant for designs that require the same 120MHz core but with a lower I/O count and 512KB Flash.

Categories

Microcontrollers > Microchip