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ATSAMD51J18A-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 64TQFP
- Series：SAM D51
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M4F
- Core Size：32-Bit Single-Core
- Speed：120MHz
- Connectivity：EBI/EMI, I2C, IrDA, LINbus, MMC/SD, QSPI, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM
- Number of I/O：51
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：128K x 8
- Voltage - Supply (Vcc/Vdd)：1.71V ~ 3.63V
- Data Converters：A/D 24x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-TQFP (10x10)
- Package / Case：64-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAMD51J18A-AU is a 32-bit microcontroller based on the ARM Cortex-M4F core, operating at a maximum frequency of 120MHz. It features 256KB of flash memory and 128KB of SRAM within a 64-TQFP package. The device supports a supply voltage range of 1.71V to 3.63V and includes 51 I/O lines. Peripheral interfaces include USB, SPI, I2C, USART, QSPI, LINbus, IrDA, and MMC/SD. Data converters consist of 24-channel 12-bit ADCs and two 12-bit DACs.
Feature Summary
- Integrated floating-point unit (FPU) for efficient mathematical processing
- Supports high-speed serial communication via QSPI and USB interfaces
- Includes multiple timer/counters and pulse width modulation capabilities
- Features internal oscillator with flexible clock management
Applications
- Industrial control systems requiring precise timing
- Consumer electronics with audio or sensor interfaces
- Medical devices needing reliable data conversion
- Smart home automation controllers
Procurement Notes
Verify the specific suffix 'AU' corresponds to the tray packaging format as indicated in distributor listings. Confirm that the AEC-Q100 qualification status applies to this exact part number variant. Ensure compatibility with the intended operating temperature range of -40°C to +85°C. Cross-reference the silicon errata document for any known hardware revisions affecting performance.
Selection Notes
Select this component when a balance of processing power and peripheral richness is required. The Cortex-M4F core offers significant computational advantage over M0+ variants. Consider the 120MHz speed limit against lower-frequency alternatives if power consumption is critical. Verify that the 64-pin TQFP footprint fits the mechanical constraints of the target design.
Part Context
This part belongs to the SAM D51 family, designed for applications demanding higher performance than entry-level MCUs. It shares architectural similarities with the ATSAME51 series but differs in connectivity options like Ethernet availability. The J18 designation typically indicates specific memory configurations within the broader product line.
Replacement Considerations
ATSAMD51J18A-AUT-EFP is a tape-and-reel alternative with identical electrical characteristics. ATSAME51J18A-AU offers similar core performance but may include additional peripherals such as Ethernet controllers.
