ATSAMD21J18A-AF
- Mfr.Part #
- ATSAMD21J18A-AF
- Manufacturer
- Microchip Technology
- Package / Case
- 64-TQFP Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 32BIT 256KB FLASH 64TQFP
- Stock
- 1,508
- In Stock :
- 1,508
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Oscillator Type :
- Internal
- Terminal Form :
- Gull wing
- Brand :
- Microchip Technology / Atmel
- RoHS :
- Details
- Operating Temperature :
- -40°C~125°C TA
- DMA Channels :
- yes
- Terminal Finish :
- Matte Tin (Sn)
- Terminal Position :
- QUAD
- Connectivity :
- I2C, LINbus, SPI, UART/USART, USB
- JESD-30 Code :
- S-PQFP-G64
- RAM Size :
- 32K x 8
- Supply Voltage-Max (Vsup) :
- 3.63V
- Reach Compliance Code :
- Compliant
- Qualification :
- AEC-Q100
- Voltage - Supply (Vcc/Vdd) :
- 1.62V~3.6V
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- EEPROM Size :
- --
- Pbfree Code :
- yes
- Product Type :
- ARM Microcontrollers - MCU
- Temperature Grade :
- Automotive
- Pin Count :
- 64
- Product Category :
- ARM Microcontrollers - MCU
- Operating Supply Voltage :
- 3.3V
- Program Memory Size :
- 256KB 256K x 8
- Manufacturer :
- Microchip
- Number of UART Channels :
- 6
- Subcategory :
- Microcontrollers - MCU
- Minimum Operating Temperature :
- -40 °C
- Speed :
- 48MHz
- Core Processor :
- ARM® Cortex®-M0+
- Height :
- 1.05mm
- Watchdog Timer :
- yes
- Product :
- MCU
- Terminal Pitch :
- 0.5mm
- Length :
- 10mm
- Base Product Number :
- ATSAMD21
- Package Type :
- TQFP
- Published :
- 2008
- Mounting Type :
- Surface Mount
- Package Shape :
- Square
- Package :
- Tray
- Number of Terminals :
- 64
- Device Core :
- ARM Cortex M0+
- Frequency :
- 48MHz
- Contact Plating :
- Tin
- Base Part Number :
- ATSAMD21J18
- Number of I2C Channels :
- 6
- Number of Terminations :
- 64
- Packaging :
- Tray
- Supply Voltage :
- 3.3V
- PWM Channels :
- yes
- Product Status :
- Active
- DAC Channels :
- yes
- Mounting Style :
- SMD/SMT
- Seated Height-Max :
- 1.2 mm
- Interfaces :
- I2S/LIN/SPI/USART/US
- RoHS Status :
- ROHS3 Compliant
- Data Converter :
- A/D 20x12b; D/A 1x10b
- Width :
- 10mm
- Family Name :
- ATSAMD
- Number of ADC Channels :
- 20 Channel
- REACH SVHC :
- No SVHC
- Has ADC :
- yes
- Mount :
- Surface Mount
- Bit Size :
- 32
- Height Seated (Max) :
- 1.2mm
- Core Architecture :
- ARM
- Number of I/Os :
- 52 I/O
- Surface Mount :
- yes
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Series :
- Automotive, AEC-Q100, SAM D21J
- Memory Size :
- 256KB
- Interface Type :
- I2C, I2S, LIN, SPI, USART
- Instruction Set Architecture :
- ARM
- MSL :
- MSL 3 - 168 hours
- Data Bus Width :
- 32b
- Peak Reflow Temperature (Cel) :
- 260
- Number of SPI Channels :
- 6
- Interface :
- I2C, I2S, LIN, SPI, UART, USART, USB
- Dimensions :
- 10 x 10 x 1.05mm
- Data Converters :
- A/D 20x12b, D/A 1x10b
- Supplier Device Package :
- 64-TQFP (10x10)
- Factory Lead Time :
- 11 Weeks
- Peripherals :
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O Lines :
- 52
- Package / Case :
- 64-TQFP Exposed Pad
- Program Memory Type :
- Flash
- ROM Programmability :
- Flash
- Number of Timers/Counters :
- 8
- JESD-609 Code :
- e3
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Core Size :
- 32-Bit
- Maximum Operating Temperature :
- +125 °C
- Typical Operating Supply Voltage :
- 3.6 (Maximum) V
- Number of Pins :
- 64
- Number of I/O :
- 52
- Datasheets
- ATSAMD21J18A-AF
ATSAMD21J18A-AF Documents

Microcontrollers Microchip Technology ATSAMD21J18A-AF Overview
The Microcontrollers Microchip Technology ATSAMD21J18A-AF is a highly integrated and efficient microcontroller unit (MCU) tailored for sophisticated applications requiring a perfect balance of power efficiency and processing capability. Designed by Microchip Technology, this MCU is built on a 32-bit ARM Cortex-M0+ processor, which ensures a robust operation with a maximum CPU speed of 48 MHz. It features a substantial 256KB of flash memory and 32KB of SRAM, making it ideal for advanced IoT devices, automation systems, and smart control applications. The integration of multiple peripheral interfaces, including I2C, SPI, and USB, along with its compact 64-TQFP package, ensures flexibility in design and scalability for future enhancements.
ATSAMD21J18A-AF Features
- 32-bit ARM Cortex-M0+ CPU
- 256KB of flash memory
- 32KB of SRAM
- Up to 48 MHz clock speed
- Multipurpose Serial Communication Interfaces (SPI/I2C/USART)
- USB Device and Host capabilities
- Extensive pinout with multiple functions (GPIO, ADC, DAC)
- 64-TQFP packaging for efficient PCB space usage
ATSAMD21J18A-AF Applications
- Smart Home Devices - Utilizes its low power consumption and high integration for smart thermostats, security systems, and lighting controllers.
- Internet of Things (IoT) - Offers essential connectivity options and powerful processing capabilities for IoT gateways and sensors.
- Industrial Automation - Enables robust control for automation machinery and process control systems with its extensive GPIO capabilities and real-time performance.
- Wearable Technology - Ideal for wearable devices due to its compact size and efficiency, supporting features like fitness tracking and mobile notifications.
- Medical Devices - Supports the development of portable medical diagnostics equipment, leveraging its low power usage and ADC functionalities for precise measurements.
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