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Product Detailed Parameters
- Description:IC MCU 32BIT 64KB FLASH 64TQFP
- 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: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 20x12b; 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 ATSAMD21J16B-AUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, part of the SAM D21J Functional Safety (FuSa) series. It features 64KB of Flash memory and 8KB of SRAM. The device operates at a maximum clock frequency of 48MHz with a supply voltage range of 1.62V to 3.6V. It includes 52 I/O pins, 20-channel 12-bit ADCs, and a 10-bit DAC. Connectivity options include I2C, SPI, UART/USART, USB, and LINbus. It is housed in a 64-TQFP package and supports an operating temperature range of -40°C to +85°C.
Feature Summary
- Functional Safety (FuSa) qualification compliant with AEC-Q100 standards for automotive reliability.
- Integrated full-speed USB device interface supporting communication protocols.
- Advanced analog peripherals including multiple 12-bit ADC channels and a 10-bit DAC.
- Comprehensive peripheral set including DMA, I2S, PWM, and watchdog timer.
Applications
- Automotive infotainment systems requiring functional safety compliance.
- Industrial control applications utilizing LINbus and high-precision analog sensing.
- Portable devices powered by low-voltage supplies with USB connectivity needs.
Procurement Notes
Verify the specific suffix 'AUT' corresponds to the 64-TQFP package and commercial temperature grade (-40°C to +85°C). Confirm that the FuSa designation aligns with project safety integrity level requirements. Check for any recent Product Change Notifications regarding assembly sites or packaging labels. Ensure EDA models are sourced from official Microchip repositories for accurate PCB footprint implementation.
Selection Notes
Select this component when both functional safety certification and USB connectivity are required within the SAM D21 family. Compare pin counts against ATSAMD21G16B variants if fewer I/Os suffice. Consider the ATSAMD21J16B-MUT if a QFN package is preferred for space-constrained designs. Verify that the 48MHz performance meets real-time processing demands without requiring higher-end cores.
Part Context
This MCU belongs to the SAM D21J sub-family, distinguished by its expanded I/O count compared to G-series parts. It shares the Cortex-M0+ architecture with other SAM D21 devices but offers specific automotive-grade validation. The J-series typically provides more peripherals than smaller packages, making it suitable for complex embedded interfaces.
Replacement Considerations
ATSAMD21J16B-MUT offers identical electrical specifications in a 64-QFN package. ATSAMD21J16B-AU is the same device in a standard TQFP package without the 'T' reel indicator. Cross-check pin compatibility and thermal characteristics when substituting between QFN and TQFP footprints.
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