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ATSAME51J18A-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 64TQFP
- Series：SAM E51
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M4F
- Core Size：32-Bit Single-Core
- Speed：120MHz
- Connectivity：CANbus, 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 ATSAME51J18A-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 integrated analog peripherals such as 24-channel 12-bit ADCs and 2-channel 12-bit DACs. Connectivity options include USB, I2C, SPI, UART/USART, CAN, and LINbus interfaces.
Feature Summary
- Integrated floating-point unit (FPU) for efficient mathematical processing
- Supports advanced power management modes including run, idle, sleep, standby, and backup
- Includes hardware security features with flash protection and debug access control
Applications
- Industrial automation controllers
- Medical devices requiring high precision analog input
- Consumer electronics with USB connectivity
- Smart home IoT gateways
Procurement Notes
Verify the specific suffix 'AU' corresponds to the 64-TQFP package and commercial temperature range (-40°C to +85°C). Confirm RoHS compliance status via the manufacturer's current documentation. Check for any recent Product Change Notifications (PCNs) regarding packaging or material changes. Ensure design-in tools match the SAM D51/E5x family requirements.
Selection Notes
Select this component when a balance of processing power and peripheral richness is required in a compact form factor. The Cortex-M4F core offers significant performance over M0+ variants while maintaining low power consumption. Consider the 64-pin limitation for I/O count against application needs. Evaluate if the 256KB Flash capacity suffices for firmware size and data storage requirements.
Part Context
This part belongs to the Microchip SAM D51 family, designed for applications needing high performance and rich analog capabilities. It shares architectural similarities with the SAM E51 series but may differ in specific automotive qualifications or extended temperature ranges found in other variants like the ATSAMD51J18A-AFT.
Replacement Considerations
ATSAMD51J18A-AU serves as a direct functional equivalent within the same package and specification set. Cross-referencing with ATSAME51J18A-AU confirms identical core specifications, though verification of exact pinout compatibility and software library support is recommended before substitution.
