ATSAM3S4AA-MU vs ATSAM4S4AA-MU Comparison
Detailed side-by-side comparison of ATSAM3S4AA-MU by Microchip Technology and ATSAM4S4AA-MU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATSAM3S4AA-MU - 64MHz Cortex-M3 256KB Flash MCU | Microchip
ATSAM3S4AA-MU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3S4AA-MU | ATSAM4S4AA-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.85 | $5.79 |
| Core Processor | ARM Cortex-M3 revision 2.0 | — |
| Core Size | 32-bit single-core | 32-bit |
| Maximum Clock Frequency | 64 MHz | 120 MHz |
| Flash Memory | 256 KB (256K x 8) | 256KB (256K x 8) |
| SRAM | 48 KB | 64KB (64K x 8) |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Instruction Set | Thumb-2 | — |
| Memory Protection Unit | Yes (MPU) | — |
| Flash Access Width | 128-bit with memory accelerator | — |
| USB | USB 2.0 device | — |
| Package | 48-QFN (7x7 mm) with exposed pad | 48-QFN (7x7 mm) Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (TA) |
| ADC Resolution | [DATA_NEEDED: ADC resolution and channels] | — |
| Communication Interfaces | USART, SPI, TWI (I2C), USB | — |
| Debug Interface | SWD (Serial Wire Debug) | — |
| Legacy Compatibility | Pin-to-pin compatible with AT91SAM7S (48/64-pin) | — |
| Packaging | Tray | — |
| Core | — | ARM Cortex-M4 |
| Data Converters | — | A/D 8x12b |
| Oscillator Type | — | Internal |
| Series | — | SAM4S |
| Connectivity | — | UART/USART, SPI, TWI (I2C) |
| Peripherals | — | PWM, DMA, WDT |
| Low Power Consumption | — | 180 uA (per Microchip product page) |
| RoHS Status | — | Compliant (QFN GREEN package per Mouser listing) |
| Processor / FPU | — | Cortex-M4 with FPU and DSP instructions |