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ATSAMD20J16B-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB 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：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：8K 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 ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-TQFP-EP (10x10)
- Package / Case：64-TQFP Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATSAMD20J16B-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 64KB of in-system programmable Flash memory and 8KB of SRAM. The device is housed in a 64-TQFP package with an exposed pad. It supports a supply voltage range of 2.7V to 5.5V and operates within a temperature range of -40°C to 85°C. Peripheral interfaces include I2C, SPI, and UART/USART.
Feature Summary
- Integrates an ARM Cortex-M0+ processor for efficient code execution
- Includes extensive analog peripherals with multiple ADC channels and a DAC
- Supports various communication protocols via dedicated serial interfaces
- Features internal oscillator options for simplified system design
Applications
- Consumer electronics requiring low-power processing
- Industrial control systems with sensor interface needs
- General-purpose embedded applications using serial communication
- Battery-powered devices utilizing wide voltage input ranges
Procurement Notes
Verify the specific suffix 'AU' corresponds to the industrial temperature grade (-40°C to 85°C) and TQFP-64 packaging as documented. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure design compatibility with the 2.7V to 5.5V supply voltage requirements specified in the datasheet.
Selection Notes
Select this component when a 64KB Flash capacity and 52 general-purpose I/O pins are required. The 64-TQFP package offers a suitable footprint for surface-mount assembly. Consider the 48MHz clock speed for application timing constraints. Verify that the 2.7V to 5.5V operating voltage aligns with the target system power architecture.
Part Context
This part belongs to the SAM D20J series within the Microchip ARM-based MCU portfolio. It shares the Cortex-M0+ core architecture with other SAM D20 variants but differs in memory size and package type. The J-series typically denotes specific pin counts and peripheral configurations distinct from G or C series counterparts.
Replacement Considerations
ATSAMD20J16B-MNT provides equivalent functionality in a 64-VQFN package. ATSAMD20J16A-AU offers similar specs with potentially different temperature grades or revisions. Cross-reference datasheets for pinout and electrical parameter compatibility before substitution.
