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ATSAMC21J18A-AUT-SL3
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Product Detailed Parameters
- Description：64MHZ 256KB FLASH 64 PIN TQFP
- Series：SAM C21, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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, PWM, WDT
- Number of I/O：52
- 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 20x12b, 3x16b Sigma-Delta; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-TQFP (10x10)
- Package / Case：64-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAMC21J18A-AUT-SL3 is an automotive-grade microcontroller from Microchip Technology, belonging to the SAM C21 series. It features an ARM Cortex-M0+ core operating at a maximum frequency of 48 MHz. The device includes 256 kB of flash memory and 32 kB of SRAM. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an industrial temperature range of -40°C to +85°C. The component is housed in a 64-TQFP package and is AEC-Q100 qualified for automotive applications.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
- Integrated CAN FD peripheral supporting high-speed communication protocols essential for automotive networks.
- Functional Safety (FuSa) capabilities designed to support safety-critical system implementations.
Applications
- Automotive body control modules
- Instrument cluster systems
- Gateway nodes in automotive networks
Procurement Notes
Verify the specific suffix SL3 against official Microchip documentation to confirm tape and reel specifications or lot traceability requirements. Ensure the part number matches the exact automotive grade and package variant required for your design. Cross-reference the datasheet revision history for any errata updates relevant to this specific batch identifier before finalizing procurement orders.
Selection Notes
Select this component when designing for automotive environments requiring 5V tolerance and robust communication interfaces like CAN FD. Compare it against non-automotive SAM C21 variants if cost is a primary driver but automotive certification is not mandatory. Consider the 64-TQFP footprint constraints during PCB layout planning to ensure adequate thermal dissipation and pin accessibility for all I/O lines.
Part Context
This part belongs to the Microchip SAM C21 family, which targets industrial and commercial applications in noisy environments. The J18 designation indicates specific memory configurations within the J-series lineup. The AUT suffix denotes automotive qualification, distinguishing it from standard commercial versions while sharing the same core architecture and peripheral set.
Replacement Considerations
ATSAMD21J18A-AUT
FAQ
What communication interface distinguishes the SAM C21 from the SAM D21?
The SAM C21 series includes CAN FD (Controller Area Network Flexible Data-Rate) support, whereas the SAM D21 series does not natively include this automotive-grade communication peripheral.
Does the ATSAMC21J18A-AUT-SL3 support functional safety?
Yes, the SAM C21 series is designed with Functional Safety (FuSa) capabilities to assist developers in meeting safety integrity levels for critical applications.
