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ATSAMD21E17D-AFT
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 32TQFP
- Series：SAM D21E, Functional Safety (FuSa)
- 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, SPI, UART/USART, USB
- 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 10x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-TQFP (7x7)
- Package / Case：32-TQFP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The ATSAMD21E17D-AFT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21E Functional Safety series. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device operates at a maximum frequency of 48MHz with an internal oscillator. It supports a supply voltage range of 1.62V to 3.63V and includes 26 I/O lines. Connectivity options include I2C, LINbus, SPI, UART/USART, and USB. The component is housed in a 32-TQFP package and is qualified for automotive applications under AEC-Q100 standards.
Feature Summary
- Automotive-grade qualification compliant with AEC-Q100 standards for functional safety applications
- Integrated USB device interface supporting low-speed and full-speed communication modes
- Comprehensive peripheral set including DMA controller, multiple timers, and analog-to-digital converters
Applications
- Automotive body electronics and control modules
- Industrial automation controllers requiring functional safety compliance
- Consumer devices utilizing USB connectivity
Procurement Notes
Verify the specific suffix 'AFT' corresponds to the 32-TQFP package and extended temperature range during procurement. Confirm that the ordered part matches the Automotive grade (FuSa) designation rather than standard commercial variants. Ensure compatibility with required firmware tools for the SAM D21E family before finalizing purchase orders.
Selection Notes
Select this model when automotive reliability and functional safety certification are mandatory requirements. The 128KB Flash capacity suits complex application logic, while the TQFP-32 package offers a balance of pin count and board space. Consider alternative packages like UFBGA if higher I/O density is needed, or smaller footprints if space is constrained.
Part Context
This component is part of the Microchip SAM D21E family, specifically designed for functional safety applications. It shares the Cortex-M0+ architecture with other SAM D21 variants but distinguishes itself through automotive qualification and specific memory/peripheral configurations tailored for safety-critical environments.
Replacement Considerations
ATSAMD21E17D-AUT: Identical electrical specifications and memory size; differs only in packaging format (Tape & Reel vs. Tray). Verify package compatibility with existing PCB footprint before substitution.
