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ATSAMD21J17A-CU
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 64UFBGA
- 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-UFBGA (5x5)
- Package / Case：64-UFBGA
- Grade：-
- Qualification：-
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Overview
The ATSAMD21J17A-CU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21J Functional Safety (FuSa) series. It features 128KB of Flash memory and 16KB of RAM, operating at a maximum speed of 48MHz. The device supports a supply voltage range of 1.62V to 3.6V and includes 52 I/O pins. Connectivity options include I2C, LINbus, SPI, UART/USART, and USB. It integrates 20-channel 12-bit ADCs and one 10-bit DAC. Operating temperatures range from -40°C to 85°C, housed in a 64-UFBGA package.
Feature Summary
- Functional Safety (FuSa) certification for automotive applications
- Integrated USB Device interface with full-speed capability
- Multiple communication peripherals including I2S and DMA controller
- Internal oscillator with calibration support
Applications
- Automotive body electronics
- Infotainment systems
- Industrial control panels
- Consumer appliances with safety requirements
Procurement Notes
Verify the specific suffix 'CU' corresponds to the 64-UFBGA package and commercial temperature grade (-40°C to 85°C). Confirm RoHS compliance status as per the latest datasheet revision. Check for any recent PCN notifications regarding assembly sites or packaging changes. Ensure compatibility with existing footprint designs for the UFBGA form factor.
Selection Notes
Select this model when Functional Safety (FuSa) qualification is required alongside standard SAM D21 performance. Compare against ATSAMD21J17D variants if extended industrial temperature ranges (-40°C to 125°C) are necessary instead of commercial grades. Consider pin count and package availability relative to board space constraints for the UFBGA option.
Part Context
This component is part of the Microchip SAM D21 family, designed for cost-sensitive embedded applications requiring ARM Cortex-M0+ efficiency. The J17 variant specifically denotes the 128KB Flash capacity within the J-series lineup. It targets markets needing reliable microcontrollers with integrated connectivity and safety features.
Replacement Considerations
ATSAMD21J17D-CU offers the same electrical specifications but supports an extended temperature range up to 125°C. ATSAMD21J17A-AU provides identical functionality in a 64-TQFP package for through-hole or different surface-mount preferences.
