ATSAM3S8BA-MU vs ATSAM3S4AA-MU Comparison
Detailed side-by-side comparison of ATSAM3S8BA-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
ATSAM3S8BA-MU - 64MHz Cortex-M3, 512KB Flash MCU | Microchip
ATSAM3S8BA-MU β ActiveMicrochip Technology
ATSAM3S4AA-MU - 64MHz Cortex-M3 256KB Flash MCU | Microchip
ATSAM3S4AA-MU β ActiveSpecification Comparison
| Parameter | ATSAM3S8BA-MU | ATSAM3S4AA-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.72 | $3.85 |
| Core | ARM Cortex-M3, 32-bit | β |
| Core Clock Speed | 64 MHz | β |
| Flash Memory | 512 KB (512K x 8) | 256 KB (256K x 8) |
| SRAM | [DATA_NEEDED: SRAM size] | 48 KB |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V | 1.62 V to 3.6 V |
| Core Supply Voltage Range | 1.08 V to 1.32 V | β |
| I/O Count | 47 | β |
| Package | 64-QFN (9x9 mm) Exposed Pad | 48-QFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| USB | USB 2.0 Full-Speed Device | USB 2.0 device |
| ADC Resolution | 12-bit and 10-bit | [DATA_NEEDED: ADC resolution and channels] |
| Series | SAM3S8 | β |
| Interface Peripherals | USART, SPI, TWI (I2C) | β |
| Life Cycle Stage | Active | β |
| Pin Count | 64 | β |
| Core Architecture | RISC, Harvard, 3-stage pipeline | β |
| Pin Compatibility | Pin-to-pin compatible with SAM7S series | β |
| Core Processor | β | ARM Cortex-M3 revision 2.0 |
| Core Size | β | 32-bit single-core |
| Maximum Clock Frequency | β | 64 MHz |
| Instruction Set | β | Thumb-2 |
| Memory Protection Unit | β | Yes (MPU) |
| Flash Access Width | β | 128-bit with memory accelerator |
| Operating Temperature | β | [DATA_NEEDED: operating temperature range] |
| Communication Interfaces | β | USART, SPI, TWI (I2C), USB |
| Debug Interface | β | SWD (Serial Wire Debug) |
| Legacy Compatibility | β | Pin-to-pin compatible with AT91SAM7S (48/64-pin) |
| Packaging | β | Tray |