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ATSAMD21E16B-AF
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB 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：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：8K 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 ATSAMD21E16B-AF is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D21E series, designed for functional safety applications. It features 64 kB of Flash memory and 8 kB of SRAM within a 32-TQFP package. The device operates at a maximum clock frequency of 48 MHz with an input/output count of 26 I/Os. It supports a supply voltage range of 1.62 V to 3.63 V and includes a 12-bit ADC with 10 channels and a 10-bit DAC. The component is qualified under AEC-Q100 standards and functions reliably across a temperature range of -40°C to +125°C.
Feature Summary
- Functional Safety (FuSa) qualification compliant with automotive reliability standards
- Integrated advanced analog peripherals including high-resolution ADC and DAC
- Supports multiple communication interfaces such as SPI, I2C, USART, I2S, and LIN
Applications
- Automotive electronic control units requiring functional safety compliance
- Industrial automation systems operating in extreme temperature environments
- Battery management systems utilizing precise analog signal processing
Procurement Notes
Verify that the specific suffix AF corresponds to the 32-TQFP package and the extended industrial temperature range up to 125°C. Confirm AEC-Q100 qualification status is required for your application. Ensure compatibility with existing design tools and check for any specific handling requirements due to moisture sensitivity classification.
Selection Notes
Select this variant when automotive-grade reliability and wide temperature operation are mandatory. The 64 kB Flash capacity suits moderate firmware complexity. Consider the 32-TQFP package for board space constraints. Verify that the 26 available I/O pins meet interface requirements without needing additional multiplexing or external expanders.
Part Context
This component belongs to the SAM D21E family, which emphasizes functional safety for automotive and industrial sectors. It shares architectural similarities with other SAM D21 devices but distinguishes itself through extended temperature ratings and specific automotive certifications. The E-series designation indicates enhanced reliability features compared to standard commercial variants.
Replacement Considerations
ATSAMD21E16B-MF offers identical electrical specifications in a QFN-32 package. ATSAMD21E16L-AF provides similar performance in a TQFP-32 package. Verify pinout compatibility and thermal characteristics before substituting.
