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ATSAML21J16B-MNT
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB FLASH 64QFN
- Series：SAM L21J
- 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：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：8K 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 ~ 105°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 ATSAML21J16B-MNT is a 32-bit microcontroller from the SAM L21 series, featuring an ARM Cortex-M0+ core operating at 48MHz. It integrates 64KB of Flash memory and 8KB of SRAM within a 48-VFQFN package. The device supports a supply voltage range of 1.62V to 3.63V and operates between -40°C and +85°C. Key peripherals include 14-channel 12-bit ADCs, a 12-bit DAC, and interfaces such as I2C, LINbus, SPI, USART, and USB.
Feature Summary
- Integrates low-power analog peripherals including multiple 12-bit ADC channels and a 12-bit DAC for signal processing applications.
- Supports versatile communication protocols via integrated I2C, LINbus, SPI, USART, and USB controllers.
- Features an ARM Cortex-M0+ processor optimized for code efficiency and energy conservation in battery-powered systems.
Applications
- Battery-powered wearable devices requiring low power consumption
- Industrial control systems utilizing LINbus communication
- Portable instrumentation with analog signal acquisition needs
Procurement Notes
Verify the specific suffix MNT corresponds to the 48-VFNQ package configuration during sourcing. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure design compatibility with the specified voltage and temperature ranges for the target application environment.
Selection Notes
Select this component when a balance of moderate memory capacity and rich analog connectivity is required in a compact footprint. Compare against ATSAMD21 variants if functional safety features are not needed, or ATSAML21G variants if fewer I/O pins suffice. Validate pinout compatibility with existing PCB layouts due to the specific QFN package dimensions.
Part Context
This part belongs to the SAM L21 family, designed for ultra-low-power applications. It shares architectural similarities with the SAM D21 but adds enhanced analog capabilities and specific interface support like LINbus. The J16 designation indicates the specific memory configuration within the J-series lineup.
FAQ
Does the ATSAML21J16B-MNT support LINbus communication?
Yes, the datasheet specifies LINbus as one of the supported connection capabilities alongside I2C, SPI, USART, and USB.
What is the resolution of the built-in data converters?
The device includes 14-channel 12-bit Analog-to-Digital Converters (ADC) and one 12-bit Digital-to-Analog Converter (DAC).
