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ATSAMD21E17L-MN
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 32QFN
- Series：SAM D21E, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit Single-Core
- Speed：48MHz
- Connectivity：I2C, LINbus, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：26
- 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 14x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-QFN (5x5)
- Package / Case：32-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATSAMD21E17L-MN is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device operates within a supply voltage range of 1.62V to 3.63V and supports an industrial temperature range of -40°C to +85°C. Connectivity includes I2C, LINbus, SPI, UART/USART, and USB interfaces. It provides 26 general-purpose I/Os and integrates peripherals such as DMA, PWM, and WDT.
Feature Summary
- Functional Safety (FuSa) compliant design for safety-critical applications
- Integrated USB interface supporting full-speed communication
- High-performance 48MHz ARM Cortex-M0+ processing core
- Comprehensive peripheral set including multiple communication protocols
Applications
- Industrial control systems requiring functional safety certification
- Consumer devices with USB connectivity requirements
- Automotive instrumentation and monitoring modules
- Smart home automation controllers
Procurement Notes
Verify the specific package variant, as 'MN' typically denotes a QFN-32 form factor. Confirm that the Functional Safety (FuSa) qualification aligns with your target application's safety integrity level requirements. Ensure the selected revision matches the latest errata documentation provided by Microchip Technology for accurate implementation.
Selection Notes
Select this component when a balance of cost efficiency and functional safety compliance is required. The 128KB Flash capacity suits moderate firmware complexity. Consider the 26 available I/O pins against system interface needs. The internal oscillator may require external calibration for high-precision timing applications compared to crystal-driven alternatives.
Part Context
This part belongs to the SAM D21E series, which is specifically engineered for Functional Safety applications. It shares architectural similarities with the standard SAM D21 family but includes additional safety mechanisms and verification processes. The E-series designation distinguishes it from other variants within the broader SAM D21 ecosystem.
Replacement Considerations
Direct substitutes include ATSAMD21E17D-AUT for TQFP packaging or ATSAMD21E17D-MZVAO for QFN-32 packaging. These parts share identical core specifications but differ in package type and potentially temperature grade. Verify pin compatibility and thermal performance before substitution.
