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ATSAM3S1AB-MUR
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB FLASH 48QFN
- Series：SAM3S
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：ARM® Cortex®-M3
- Core Size：32-Bit Single-Core
- Speed：64MHz
- Connectivity：I2C, MMC, SPI, SSC, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：34
- Program Memory Size：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：16K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 8x10/12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：48-QFN (7x7)
- Package / Case：48-VFQFN Exposed Pad
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Overview
The ATSAM3S1AB-MUR is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 64 MHz. It features 64 kB of embedded Flash memory and 16 kB of SRAM. The device includes an 8-channel 12-bit ADC, two 12-bit DACs, and one analog comparator. Connectivity options include SPI, I2C, USART, UART, and USB Full-Speed Device interfaces with an embedded transceiver. It operates within a voltage range of 1.62 V to 1.95 V and supports temperatures from -40°C to +85°C in a QFN-48 package.
Feature Summary
- Integrates a high-performance ARM Cortex-M3 processor with Memory Protection Unit (MPU) for secure execution environments.
- Provides versatile peripheral connectivity including USB Full-Speed Device, multiple serial communication interfaces, and high-speed MCI.
- Includes mixed-signal capabilities with multi-channel 12-bit ADC and dual 12-bit DAC for precise analog control.
Applications
- USB-enabled consumer electronics and peripherals
- Industrial control systems requiring robust communication interfaces
- Medical devices utilizing analog signal processing
Procurement Notes
Verify the specific suffix 'MUR' against official Microchip documentation to confirm the reel packaging type and moisture sensitivity level. Ensure the voltage range and pinout match the target PCB design. Cross-reference the RoHS compliance status and lead-free specifications with current datasheets before finalizing procurement orders.
Selection Notes
Select this component when a balance of processing power and low pin count is required for USB applications. The 64 MHz speed and 64 kB Flash are suitable for moderate complexity firmware. Consider the 1.62 V to 1.95 V supply constraint and ensure the system power architecture supports this narrow voltage window without external regulation overhead.
Part Context
This part belongs to the SAM3S series, which offers pin-to-pin compatibility with legacy AT91SAM7S products. The series is designed for cost-sensitive applications requiring ARM Cortex-M3 performance. The ATSAM3S1AB variant specifically targets designs needing USB connectivity with limited I/O resources.
Replacement Considerations
ATSAM3S1AA-MUR is a compatible alternative within the same series offering identical core and memory specifications in a similar package configuration.
