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ATSAME54N20A-AF
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Product Detailed Parameters
- Description：IC MCU 32BIT 1MB FLASH 100TQFP
- Series：SAM E54
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M4F
- Core Size：32-Bit Single-Core
- Speed：120MHz
- Connectivity：CANbus, EBI/EMI, Ethernet, I2C, IrDA, LINbus, MMC/SD, QSPI, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：81
- Program Memory Size：1MB (1M x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：256K x 8
- Voltage - Supply (Vcc/Vdd)：1.71V ~ 3.63V
- Data Converters：A/D 28x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：100-TQFP (14x14)
- Package / Case：100-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAME54N20A-AF is a 32-bit microcontroller from the Microchip SAM E54 series, featuring an ARM Cortex-M4F core operating at up to 120 MHz. It integrates 1 MB of in-system programmable flash memory and 256 KB of SRAM. The device supports a supply voltage range of 1.71 V to 3.63 V and includes 81 general-purpose I/Os. Connectivity options encompass CANbus, Ethernet, I2C, SPI, UART/USART, and USB. It features 28-channel 12-bit ADCs and two 12-bit DACs, with an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrated ARM Cortex-M4F processor with hardware floating-point unit for efficient digital signal processing.
- Comprehensive peripheral set including multiple communication interfaces such as Ethernet, CAN, and USB.
- High-resolution analog conversion capabilities with 28-channel 12-bit ADCs and dual 12-bit DACs.
Applications
- Industrial automation controllers requiring robust connectivity.
- Smart home IoT devices utilizing wireless or wired communication protocols.
- Medical instrumentation needing precise analog signal acquisition.
Procurement Notes
Verify the specific suffix 'AF' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the TQFP-100 package. Confirm that the selected variant meets all required environmental and electrical specifications for the target application before finalizing procurement.
Selection Notes
Select this component when a balance of high performance and extensive connectivity is required within the SAM E54 family. Consider the 120 MHz clock speed and 1 MB flash capacity for complex firmware implementations. Evaluate the 81 I/O count against system interface requirements to ensure sufficient pin availability for sensors, actuators, and communication buses.
Part Context
This part belongs to the Microchip SAM E54 series, designed for secure IoT applications. The series emphasizes low power consumption alongside high processing capability. It shares architectural similarities with other ARM Cortex-M4F based MCUs but offers specific integration levels of memory and peripherals tailored for embedded control tasks.
Replacement Considerations
Consult Microchip's official cross-reference tools for verified substitutes. Ensure any replacement maintains compatible pinout, memory size, and peripheral functionality. Verify that alternative parts support the same operating voltage and temperature ranges.
