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ATSAMD21J17A-MU
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 64QFN
- Series：SAM D21J, 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：52
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：16K 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 ATSAMD21J17A-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. Connectivity options include I2C, LINbus, SPI, USART, USB, and I2S interfaces. It provides 52 general-purpose I/Os, 20-channel 12-bit ADCs, one 10-bit DAC, and multiple timers. The component is housed in a 64-QFN package and is qualified under AEC-Q100 standards.
Feature Summary
- Functional Safety (FuSa) qualification compliant with automotive reliability standards
- Integrated full-speed USB device and embedded host controller capabilities
- Support for up to 60 touch channels via capacitive sensing interface
- Advanced analog peripherals including high-resolution ADCs and a digital-to-analog converter
Applications
- Automotive infotainment and body control modules
- Industrial metering and sensor systems
- Home automation controllers
- Consumer electronics requiring low power consumption
Procurement Notes
Verify the specific suffix 'MU' corresponds to the 64-QFN tray packaging configuration as indicated by distributor listings. Confirm that the Functional Safety (FuSa) designation aligns with required automotive safety integrity levels for the target application. Ensure compatibility with the 1.62V to 3.63V operating voltage range within the system design constraints.
Selection Notes
Select this variant when a QFN footprint is preferred over TQFP or other packages within the SAM D21 family. The 'J' series offers higher pin counts compared to 'G' series devices, providing more I/O resources. Consider the AEC-Q100 qualification if the application demands automotive-grade reliability and temperature performance beyond standard commercial limits.
Part Context
This component belongs to the SAM D21J series, which is part of Microchip's broader SAM D21 family of 32-bit ARM Cortex-M0+ microcontrollers. The J-series variants are distinguished by their increased pin count and peripheral availability compared to G-series counterparts. This specific model integrates functional safety features, positioning it for applications requiring robust performance in regulated environments.
Replacement Considerations
ATSAMD21J17A-AU: Same core specifications but in a 64-TQFP package instead of QFN. ATSAMD21J17A-MUT: Identical electrical characteristics but supplied in tape-and-reel packaging rather than trays.
