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ATSAME54P20A-AF

MCHPATSAME54P20A-AF

Microchip Technology
ARM® Cortex®-M4F SAM E54 Microcontroller IC 32-Bit 120MHz 1MB (1M x 8) FLASH 128-TQFP (14x14)
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Overview

The ATSAME54P20A-AF is a high-performance 32-bit microcontroller based on the ARM Cortex-M4F core with a floating-point unit, operating at speeds up to 120MHz. It features 1MB of Flash, 256KB of RAM, and extensive connectivity options including 10/100 Ethernet MAC and Dual CAN-FD. This device is designed for complex automation and gateway applications that require robust communication interfaces and hardware-based security features.

Why Choose This Part

The SAM E54 series provides a significant performance boost with its 120MHz clock and hardware FPU, while maintaining excellent power efficiency. The combination of 1MB Flash and 256KB RAM supports complex software stacks like TLS/SSL and RTOS-based networking without external memory.

Applications

Industrial Ethernet Gateways
Utilizing the integrated 10/100 Ethernet MAC and high SRAM density to bridge industrial fieldbus protocols to factory networks.
Automotive Telematics
Leveraging Dual CAN-FD interfaces and the Cortex-M4F core for real-time vehicle data processing and diagnostic logging.
Secure IoT Edge Nodes
Using the hardware encryption engine and 1MB of Flash for secure boot and encrypted firmware-over-the-air (FOTA) updates.
Human-Machine Interface (HMI)
Driving small to medium graphical displays using the high-speed QSPI interface and the Parallel Capture Controller.

Key Specifications

Speed 120MHz
RAM Size 256K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Connectivity CANbus, EBI/EMI, Ethernet, 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 ~ 125degC (TA)
Supplier Device Package 128-TQFP (14x14)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.63V

Getting Started

Engineers can begin development using the SAM E54 Xplained Pro evaluation kit (ATSAME54-XPRO). The device is fully supported by the Microchip Harmony v3 framework within MPLAB X IDE, which provides drivers for the Ethernet MAC, CAN-FD, and USB stacks.

ATSAME54P Family

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

Part Number Temp Range Stock
ATSAME54P20A-AF (this part) -40degC ~ 125degC .. 27
ATSAME54P20A-AUT -40degC ~ 85degC (.. 941

Also Consider

STM32F407VGT6 STMicroelectronics - Offers similar Cortex-M4 performance with Ethernet and CAN but uses a different peripheral ecosystem preferred by some developers.

Categories

Microcontrollers > ARM Cortex-M4 Microcontrollers > Microchip Industrial & Automation > Industrial Communication Automotive > CAN Bus & Vehicle Networking