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ATSAMD21E17A-AUT
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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 ~ 3.6V
- Data Converters：A/D 10x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-TQFP (7x7)
- Package / Case：32-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAMD21E17A-AUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 128 kB of Flash memory and 16 kB of SRAM. The device includes a 12-bit ADC with 10 channels and a 10-bit DAC. It supports multiple communication interfaces including I2C, SPI, USART, LIN, and USB. Operating voltage ranges from 1.62 V to 3.63 V, with an industrial temperature range of -40°C to +85°C. It is housed in a 32-TQFP package.
Feature Summary
- Integrated Functional Safety (FuSa) capabilities for safety-critical applications
- Supports low-power operation with multiple sleep modes
- Includes DMA controller for efficient data transfer management
- Features built-in analog peripherals such as comparators and touch sensing
Applications
- Industrial control systems requiring functional safety compliance
- Consumer electronics with USB connectivity
- Smart home devices and IoT nodes
- Medical equipment components
Procurement Notes
Verify the specific suffix 'AUT' indicates tape and reel packaging when ordering. Confirm the functional safety qualification status against the latest Microchip datasheet revision. Ensure compatibility with the target PCB footprint for the 32-TQFP package. Check for any recent product change notices affecting pinout or electrical characteristics.
Selection Notes
Select this model for designs needing 128 kB Flash and 16 kB RAM within a compact 32-pin form factor. Choose over non-FuSa variants if safety certification is required. Consider the 1.62 V minimum voltage for battery-powered applications. Verify interface requirements match the available USART, SPI, and I2C instances.
Part Context
This component belongs to the SAM D21E series, which is part of the broader SAM D21 family optimized for cost-sensitive and space-constrained embedded applications. The E-series typically offers a balance of performance and peripheral count suitable for general-purpose microcontroller tasks.
Replacement Considerations
ATSAMD21E17A-AU is the tray-packaged equivalent. ATSAMD21E18A-AU offers increased Flash memory. ATSAMD21J17A-AU provides more I/O pins in a larger package.
