ATSAM4S4AA-MU vs ATSAM3S4AA-MU Comparison
Detailed side-by-side comparison of ATSAM4S4AA-MU by Microchip Technology and ATSAM3S4AA-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 | ATSAM4S4AA-MU | ATSAM3S4AA-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.79 | $3.85 |
| Core | ARM Cortex-M4 | — |
| Core Size | 32-bit | 32-bit single-core |
| Maximum Clock Frequency | 120 MHz | 64 MHz |
| Flash Memory | 256KB (256K x 8) | 256 KB (256K x 8) |
| SRAM | 64KB (64K x 8) | 48 KB |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Data Converters | A/D 8x12b | — |
| Oscillator Type | Internal | — |
| Operating Temperature | -40C to +85C (TA) | [DATA_NEEDED: operating temperature range] |
| Package | 48-QFN (7x7 mm) Exposed Pad | 48-QFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| 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 | — |
| Core Processor | — | ARM Cortex-M3 revision 2.0 |
| Instruction Set | — | Thumb-2 |
| Memory Protection Unit | — | Yes (MPU) |
| Flash Access Width | — | 128-bit with memory accelerator |
| USB | — | USB 2.0 device |
| 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 |