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ATSAML21G17B-MUT
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 48QFN
- Series：SAM L21G, 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：37
- 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 14x12b; D/A 2x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：48-QFN (7x7)
- Package / Case：48-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATSAML21G17B-MUT is a 32-bit microcontroller from the SAM L21J series, featuring an ARM Cortex-M0+ core operating at up to 48MHz. It integrates 128KB of in-system self-programmable Flash and 16KB of main SRAM. The device supports a supply voltage range of 1.62V to 3.63V and includes advanced analog peripherals such as a 12-bit ADC and dual 12-bit DACs. It offers Full Speed USB connectivity, multiple SERCOM interfaces, and capacitive touch sensing capabilities within a 64-QFN package.
Feature Summary
- Ultra-low-power architecture consuming under 35 µA/MHz in active mode with multiple sleep modes for energy efficiency.
- Integrated Full Speed USB host and device interface supporting high-speed communication protocols.
- Advanced analog subsystem including a 1MSPS 12-bit ADC, dual 12-bit DACs, operational amplifiers, and analog comparators.
- Peripheral Touch Controller (PTC) enabling capacitive touch sensing with wake-up functionality in standby mode.
Applications
- Battery-powered IoT devices requiring low active current consumption
- USB-enabled consumer electronics and peripheral controllers
- Industrial control systems utilizing analog signal processing
- Smart home appliances with capacitive touch user interfaces
Procurement Notes
Verify the specific suffix 'MUT' corresponds to the 64-QFN package and industrial temperature range (-40°C to 85°C). Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure ESD handling procedures are followed during assembly due to the surface-mount packaging type.
Selection Notes
Select this component when design requirements include integrated USB connectivity alongside ultra-low power operation. The inclusion of advanced analog peripherals makes it suitable for applications needing direct signal conditioning without external components. Consider the 128KB Flash capacity for firmware size constraints and the 48MHz clock speed for real-time processing needs.
Part Context
This part belongs to the SAM L21 family of microcontrollers designed for functional safety and low-power applications. It shares architectural similarities with other SAM L21 variants but is distinguished by its specific memory configuration and package type. The family emphasizes energy efficiency while maintaining robust peripheral sets for diverse embedded control tasks.
Replacement Considerations
Consult official Microchip cross-reference tools for verified substitutes. Alternative parts may vary in pin compatibility or peripheral availability. Ensure any replacement maintains the required USB functionality and analog performance specifications for the target application.
