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ATSAML21J17B-MUT
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 64QFN
- Series：SAM L21J, 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, SCI, SPI, UART/USART, USB
- Peripherals：DMA, POR, PWM, WDT
- Number of I/O：51
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：16K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.63V
- Data Converters：A/D 20x12b; D/A 2x12b
- 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 ATSAML21J17B-MUT is a 32-bit microcontroller from the SAM L21J series, featuring an ARM Cortex-M0+ core operating at 48MHz. It integrates 128KB of flash memory and 16KB of RAM within a 64-QFN package. The device supports a supply voltage range of 1.62V to 3.63V and includes 51 I/O lines. Peripheral interfaces include I2C, LINbus, SCI, SPI, UART/USART, and USB. Analog capabilities consist of 20x12-bit ADCs and 2x12-bit DACs. Operating temperature spans -40°C to 85°C.
Feature Summary
- Functional Safety (FuSa) compliant design for safety-critical applications
- Integrated full-speed USB interface with DMA support
- Advanced analog subsystem with multiple high-resolution data converters
Applications
- Safety-related control systems requiring functional safety certification
- Industrial communication nodes utilizing LINbus or serial interfaces
- Portable devices powered by low-voltage battery sources
Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts regarding the 64-QFN footprint. Confirm that the selected variant meets all required functional safety integrity levels for the target application environment.
Selection Notes
Select this component when functional safety features are mandatory alongside standard connectivity options. Compare memory sizes against other SAM L21 variants if larger storage is needed. Verify pin count requirements as this model provides 51 accessible I/O lines within its specific package configuration.
Part Context
This part belongs to the SAM L21 family, which focuses on low-power performance with functional safety capabilities. It shares architectural similarities with other Cortex-M0+ based MCUs but distinguishes itself through integrated safety mechanisms and specific peripheral sets tailored for industrial and automotive-adjacent environments.
Replacement Considerations
Consult official substitution lists for cross-references. Variants such as ATSAML21J18B offer increased memory capacity while maintaining similar interfaces.
