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ATSAMD21E15B-AF
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Product Detailed Parameters
- Description：IC MCU 32BIT 32KB FLASH 32TQFP
- 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, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：26
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：4K 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 ~ 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 ATSAMD21E15B-AF is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21E Functional Safety (FuSa) series. It features 32KB of Flash memory and 4KB of SRAM, operating at a maximum clock frequency of 48MHz. The device supports an operating voltage range of 1.62V to 3.63V and includes 26 I/O pins. It is housed in a 64-TQFP package with an extended industrial temperature range of -40°C to +125°C.
Feature Summary
- Complies with AEC-Q100 automotive qualification standards for reliability.
- Integrates functional safety mechanisms aligned with ISO 26262 requirements.
- Supports multiple communication interfaces including SPI, I2C, USART, LINbus, and USB.
Applications
- Automotive body electronics systems
- Industrial control applications requiring high temperature stability
- Safety-critical embedded controllers
Procurement Notes
Verify the specific suffix 'AF' against official Microchip documentation to confirm the 64-pin TQFP package and +125°C temperature rating. Ensure compatibility with automotive-grade supply chain requirements. Confirm RoHS compliance status through current datasheets before integration.
Selection Notes
Select this component when automotive qualification and wide temperature operation are mandatory. The 64-pin package provides additional peripheral access compared to smaller variants. Verify that the 32KB Flash capacity meets application code size constraints.
Part Context
This part belongs to the SAM D21E family, which is specifically designed for functional safety applications. Unlike standard SAM D21 devices, the E-series includes enhanced diagnostic coverage and safety manuals to support ASIL-B design implementations in automotive environments.
Replacement Considerations
ATSAMD21E15B-AUT offers similar specifications but utilizes a 32-pin TQFP package with an 85°C temperature rating. ATSAMD21J15B-AF shares the same electrical characteristics and temperature range but uses a different pin count and package configuration.
