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ATSAML21J16B-AUT
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB FLASH 64TQFP
- Series：SAM L21J
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT),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 ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-TQFP (10x10)
- Package / Case：64-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAML21J16B-AUT is an ARM Cortex-M0+ microcontroller featuring 64KB Flash and 8KB SRAM. It operates at a maximum frequency of 48MHz within a 1.62V to 3.63V supply range. The device includes a 12-bit ADC, two 12-bit DACs, USB 2.0 interface, six SERCOMs, and a Peripheral Touch Controller. It is housed in a 64-pin TQFP package.
Feature Summary
- Ultra-low-power architecture with SleepWalking capabilities for peripheral-driven wake-up
- Integrated full-speed USB 2.0 embedded host and device functionality
- Configurable Custom Logic (CCL) and advanced analog peripherals including OPAMPs and comparators
- Event System enabling asynchronous inter-peripheral signaling without CPU intervention
Applications
- Battery-powered wearable devices requiring low standby current
- Industrial control systems utilizing PWM and timer/counters
- Consumer electronics with capacitive touch user interfaces
- Metering applications leveraging high-precision ADC and RTC
Procurement Notes
Verify the specific ordering code against the manufacturer's official documentation to ensure correct memory size and package type. Confirm that the 'AUT' suffix corresponds to the required temperature grade and tape-and-reel packaging format before finalizing procurement orders.
Selection Notes
Select this component when a balance of moderate Flash capacity and extensive analog connectivity is required. The SAM L21 series offers pin-compatible migration paths across different memory densities, facilitating design scalability without altering the PCB layout.
Part Context
This part belongs to the Atmel SMART SAM L21 family of ultra-low-power microcontrollers. The series utilizes the ARM Cortex-M0+ core and provides flexible power management options, including multiple sleep modes and dynamic voltage scaling, targeting energy-efficient embedded applications.
Replacement Considerations
ATSAML21J16B-MUT: Identical specifications in QFN64 package. ATSAML21J17B-AUT: Higher memory configuration (128KB Flash/16KB SRAM). ATSAMD21J16A: Non-automotive grade variant with similar specifications.
