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ATSAM4S4AA-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 48LQFP
- Series：SAM4S
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M4
- Core Size：32-Bit Single-Core
- Speed：120MHz
- Connectivity：I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O：34
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：64K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 8x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：48-LQFP (7x7)
- Package / Case：48-LQFP
- Grade：-
- Qualification：-
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Overview
The ATSAM4S4AA-AU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120MHz. It features 256KB of flash memory and 64KB of RAM. The device includes eight 12-bit analog-to-digital converters and supports multiple communication interfaces including I2C, SPI, USART, USB, IrDA, and SD/MMC. It operates within a voltage range of 1.62V to 3.6V and is available in a 48-LQFP package with an industrial temperature range of -40°C to 85°C.
Feature Summary
- Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient digital signal processing.
- Includes comprehensive peripheral set with DMA controller, PWM, watchdog timer, and power-on reset.
- Supports embedded multimedia card interface and serial peripheral interface for external storage connectivity.
Applications
- Industrial control systems requiring real-time processing
- Consumer electronics with USB connectivity
- Medical devices needing precise analog signal acquisition
Procurement Notes
Verify the specific suffix AU corresponds to the 48-LQFP package and industrial temperature grade. Confirm RoHS compliance status as per current Microchip documentation. Check for any recent Product Change Notices affecting assembly location or marking changes before finalizing procurement orders.
Selection Notes
Select this component when 256KB flash and 64KB RAM are required alongside USB and SD/MMC interfaces. Compare against ATSAM4S4BA-AU if additional GPIO pins or DAC channels are needed. Ensure the 48-pin LQFP footprint fits the target PCB layout constraints.
Part Context
This part belongs to the SAM4S series of high-performance microcontrollers designed for applications requiring robust processing capabilities. It shares architectural similarities with other SAM4S variants but differs in memory size and pin count. The series targets cost-sensitive applications without compromising on performance.
Replacement Considerations
ATSAM4S4BA-AU offers similar specifications with increased I/O count in a 64-pin package. ATSAM4S2AA-AU provides reduced flash memory (128KB) in the same 48-pin form factor.
