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ATSAMC21E18A-AUT64
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 32TQFP
- Series：SAM C21, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit
- Speed：48MHz
- Connectivity：CANbus, I2C, LINbus, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O：26
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：2.7V ~ 5.5V
- Data Converters：A/D 12x12b, 1x16b Sigma-Delta; 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 ATSAMC21E18A-AUT64 is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM C21 series designed for functional safety applications. It features 256KB of in-system programmable flash memory and 32KB of SRAM. The device operates at a maximum clock frequency of 48MHz with a supply voltage range of 2.7V to 5.5V. It includes an analog-to-digital converter with 10x12-bit and 1x16-bit resolution, alongside a 1x10-bit digital-to-analog converter. The component supports interfaces such as CANbus, I2C, LINbus, SPI, and UART/USART, housed in a 64-TQFP package.
Feature Summary
- Integrated Functional Safety (FuSa) capabilities within the SAM C21 family architecture
- Supports multiple communication protocols including CANbus, LINbus, I2C, SPI, and USART
- Features mixed-signal conversion with high-resolution ADC and DAC peripherals
- Includes hardware peripherals such as DMA, power-on reset, and watchdog timer
Applications
- Industrial control systems requiring functional safety compliance
- Automotive electronics utilizing CANbus or LINbus networks
- General-purpose embedded controllers operating within wide voltage ranges
- Data acquisition systems utilizing high-resolution analog input channels
Procurement Notes
Verify the specific suffix 'AUT64' against official Microchip documentation to confirm package type and temperature grade alignment. Ensure compatibility with existing design files by checking pinout definitions for the 64-TQFP configuration. Confirm that the functional safety certification status matches project requirements before finalizing procurement decisions.
Selection Notes
Select this component when a 32-bit ARM Cortex-M0+ solution with integrated functional safety features is required. It is suitable for designs needing extensive I/O connectivity via CANbus and LINbus alongside precise analog signal processing. Consider the 256KB flash capacity for complex firmware implementations requiring significant code storage space.
Part Context
This part belongs to the Microchip SAM C21 series, which extends the functionality of the SAM D21 family with added functional safety features. The series targets automotive and industrial markets where reliability and diagnostic coverage are critical. The E18 variant specifically denotes the 256KB flash and 32KB RAM configuration within this ecosystem.
Replacement Considerations
Consult official substitution lists for compatible parts within the SAM C21 family. Verify pin-to-pin compatibility if replacing with other packages like QFN or TQFP variants. Ensure software libraries support the specific peripheral configurations available in the target replacement model.
