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ATSAML21E17B-MUT
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 32QFN
- Series：SAM L21E
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit Single-Core
- Speed：48MHz
- Connectivity：I2C, LINbus, SCI, SPI, UART/USART, USB
- Peripherals：DMA, POR, PWM, WDT
- Number of I/O：25
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：16K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.63V
- Data Converters：A/D 10x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-VQFN (5x5)
- Package / Case：32-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATSAML21E17B-MUT is a Microchip Technology ARM Cortex-M0+ microcontroller from the SAM L21 series, designed for functional safety applications. It features a 32-bit architecture with a maximum clock frequency of 48 MHz. The device integrates 128 kB of flash memory and 16 kB of SRAM. It operates within a supply voltage range of 1.62 V to 3.63 V and supports an operating temperature range of -40°C to +85°C. The component is housed in a 64-VQFN package with exposed pad.
Feature Summary
- Supports Functional Safety (FuSa) requirements for system-level safety applications
- Integrates high-resolution analog peripherals including dual 12-bit DACs and multiple 12-bit ADC channels
- Includes comprehensive connectivity interfaces such as USB Full Speed, SPI, I2C, LIN, and USART
Applications
- Industrial control systems requiring functional safety compliance
- Medical devices with strict reliability standards
- Automotive subsystems utilizing LIN bus communication
- Smart sensors and actuators with analog signal processing needs
Procurement Notes
Verify the exact part number against official Microchip documentation to ensure compatibility with functional safety specifications. Confirm package details and RoHS compliance status prior to integration. Check for any recent production change notices that may affect assembly or sourcing parameters.
Selection Notes
Select this MCU when functional safety certification is required alongside low-power ARM Cortex-M0+ performance. Ensure design requirements align with the 1.62 V to 3.63 V supply range and 48 MHz processing speed. Verify peripheral counts match application needs for ADC, DAC, and communication interfaces.
Part Context
This component belongs to the SAM L21 family, which focuses on functional safety and low power consumption. It shares architectural similarities with other SAM L21 variants but offers specific memory and pin configurations tailored for safety-critical embedded applications.
Replacement Considerations
Consult Microchip's official cross-reference tools for verified substitutes. Consider ATSAML21J17B-MUT for similar functionality with different pin counts. Ensure any replacement maintains functional safety integrity and electrical compatibility.
