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ATSAML22J18A-MUT
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 64QFN
- Series：SAM L22J
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit Single-Core
- Speed：32MHz
- Connectivity：I2C, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O：50
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.63V
- Data Converters：A/D 16x12b
- 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 ATSAML22J18A-MUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 32MHz. It features 256KB of Flash memory and 32KB of SRAM. The device includes 16 channels of 12-bit ADCs and supports interfaces such as I2C, SPI, UART/USART, and USB. It operates within a voltage range of 1.62V to 3.63V and functions between -40°C and +85°C. The component is housed in a 64-QFN (9x9) package with 50 available I/O lines.
Feature Summary
- Integrates an ARM Cortex-M0+ processor for efficient code execution in low-power applications.
- Includes advanced analog peripherals with multiple 12-bit ADC channels for precise signal acquisition.
- Supports comprehensive communication protocols including USB, SPI, I2C, and USART for versatile connectivity.
- Features integrated LCD controller and Peripheral Touch Controller (PTC) for user interface capabilities.
Applications
- Battery-powered wearable devices requiring ultra-low power consumption
- Smart home sensors and actuators with limited form factor constraints
- Industrial control systems utilizing segment LCD displays
- Portable medical equipment needing high-precision analog input
Procurement Notes
Verify the specific ordering suffix to confirm package type and tape/reel configuration. Ensure compatibility with existing PCB footprints for the 64-QFN housing. Check for any recent Product Change Notifications regarding assembly sites or marking changes. Confirm moisture sensitivity level handling requirements during storage and reflow soldering processes.
Selection Notes
Choose this model when 256KB of program memory and 32KB of RAM are sufficient for application logic. Select for designs requiring integrated USB connectivity without external transceivers. Opt for this part if segment LCD driving and touch sensing are needed directly from the MCU. Consider the 32MHz clock speed against power budget constraints for real-time processing needs.
Part Context
This component belongs to the SAM L22J family of microcontrollers designed for ultra-low-power performance. It shares architectural similarities with other SAM L22 variants but offers specific memory and pin configurations. The series targets applications demanding extended battery life while maintaining robust peripheral integration for IoT and consumer electronics.
Replacement Considerations
ATSAML22G18A-MUT: Offers similar core and memory but in a 48-QFN package with fewer I/Os. ATSAML22J16A-AUT: Provides reduced Flash and RAM capacity in a TQFP package. Verify pinout compatibility and peripheral availability before substitution.
