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ATSAMD20J18A-AN
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 64TQFP
- Series：SAM D20J
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit Single-Core
- Speed：48MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, WDT
- Number of I/O：52
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 20x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-TQFP (10x10)
- Package / Case：64-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAMD20J18A-AN is a Microchip Technology ARM Cortex-M0+ microcontroller featuring a 48 MHz maximum clock frequency. It integrates 256 KB of Flash program memory and 32 KB of SRAM data memory within a 64-TQFP package. The device operates on a supply voltage range of 1.6 V to 3.6 V and supports up to 52 I/O pins. It includes a 12-bit ADC, multiple communication interfaces including SPI, USART, and I2C, and functions within an industrial temperature range.
Feature Summary
- ARM Cortex-M0+ core architecture for efficient processing
- Integrated 256 KB Flash and 32 KB SRAM storage
- Supports multiple serial communication protocols
- Includes 12-bit analog-to-digital conversion capabilities
Applications
- Home automation systems
- Consumer electronic devices
- Industrial metering applications
- General-purpose embedded control
Procurement Notes
Verify the specific suffix AN indicates the 64-TQFP package and operating temperature range when ordering. Confirm that the 1.6V to 3.6V supply voltage requirements align with the target system design. Ensure compatibility with existing development tools and debuggers for the SAM D20 series before procurement.
Selection Notes
Select this component for applications requiring low power consumption combined with high performance from an ARM Cortex-M0+ core. Consider the 256 KB memory capacity for code size requirements. Evaluate the 52 available I/O pins against peripheral count needs. Verify that the TQFP-64 package fits the PCB layout constraints.
Part Context
This part belongs to the SAM D20 family of microcontrollers by Microchip Technology. These devices are designed for cost-sensitive applications needing ARM-based performance. The SAM D20 series offers a balance of processing power and energy efficiency suitable for battery-powered and mains-operated devices.
Replacement Considerations
Consult official cross-reference lists for direct pin-compatible alternatives within the SAM D20 or SAM D21 families. Verify electrical specifications and memory sizes match before substitution. No public substitute part numbers are confirmed in the provided documentation.
