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ATSAMD21J18A-MUT
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 64QFN
- Series：SAM D21J, 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：52
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 20x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-QFN (9x9)
- Package / Case：64-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATSAMD21J18A-MUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 256 kB of Flash program memory and 32 kB of SRAM data memory. The device supports a supply voltage range of 1.62 V to 3.6 V and includes 52 general-purpose I/O pins. It integrates multiple communication interfaces including I2C, SPI, USART, USB, I2S, and LIN. The component is housed in a 64-QFN package and is qualified under AEC-Q100 standards for automotive applications.
Feature Summary
- Functional Safety (FuSa) capability aligned with ISO 26262 standards
- Integrated USB 2.0 Full-Speed Device interface
- Automotive qualification compliant with AEC-Q100 Grade 1 requirements
Applications
- Automotive infotainment systems
- Instrumentation clusters
- Body control modules
- Telematics units
Procurement Notes
Verify the specific suffix 'MUT' confirms the tape-and-reel packaging format required for automated assembly processes. Confirm that the AEC-Q100 qualification status meets the specific reliability targets for the intended automotive application environment. Ensure compatibility with the 1.62 V to 3.6 V supply voltage range within the target system design.
Selection Notes
Select this component when functional safety compliance is mandatory for the application. Choose this model over non-automotive variants if AEC-Q100 certification is required. Consider the 64-pin QFN footprint constraints during PCB layout. Verify that the 48 MHz processing speed and peripheral set adequately support the real-time control requirements of the system.
Part Context
This part belongs to the SAM D21 family of 32-bit ARM-based microcontrollers designed by Microchip Technology. The J-series designation indicates a specific pin count and memory configuration within the family. The SAM D21 series is engineered to provide high performance with low power consumption, targeting industrial and automotive markets requiring robust connectivity and safety features.
Replacement Considerations
ATSAMD21J18A-MU is the tray-packaged equivalent of the same silicon. ATSAMC21J18A-MUT is a similar device but operates at a higher voltage range of 2.7 V to 5.5 V.
