ATSAM3A8CA-AU vs ATSAM3SD8CA-AU Comparison
Detailed side-by-side comparison of ATSAM3A8CA-AU by Microchip Technology and ATSAM3SD8CA-AU 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
ATSAM3A8CA-AU - 84MHz Cortex-M3 MCU, 512KB Flash | Microchip
ATSAM3A8CA-AU ✓ ActiveMicrochip Technology
ATSAM3SD8CA-AU - 64MHz Cortex-M3 MCU 512KB Flash | Microchip
ATSAM3SD8CA-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3A8CA-AU | ATSAM3SD8CA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | ARM Cortex-M3 revision 2.0 | ARM Cortex-M3 revision 2.0 |
| Core Size | 32-Bit | 32-Bit |
| Maximum Clock Speed | 84 MHz | — |
| Flash Memory | 512KB (2 x 256KB banks) | — |
| SRAM | 96KB (64KB + 32KB banks) | — |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V (1.62 V to 3.6 V range) | — |
| Connectivity | CAN, I2C, IrDA, LIN, MMC, SPI, SSC, UART/USART, USB | — |
| USB | High-speed USB 2.0 device with integrated transceiver | High-speed USB device with integrated transceiver |
| Instruction Set | Thumb-2 | Thumb-2 |
| Memory Protection | MPU (Memory Protection Unit) | — |
| SysTick Timer | 24-bit | — |
| Interrupt Controller | NVIC (Nested Vector Interrupt Controller) | — |
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| RoHS Status | Compliant (Green package per Mouser listing) | Compliant (LQFP, Green, MRL per Mouser listing) |
| Series | SAM3A | — |
| Maximum Clock Frequency | — | 64 MHz |
| Flash Memory Size | — | 512KB (512K x 8) |
| Memory Protection Unit | — | Yes (MPU) |
| Operating Voltage Range | — | 1.62 V to 3.6 V |
| Supply Voltage Options | — | 1.8 V / 2.5 V / 3.3 V |
| Pin Count | — | 100 |
| Compatibility | — | Pin-to-pin compatible with AT91SAM7S legacy (64-pin versions) and SAM3S4/2/1 products |
| Packaging | — | Tray |
| SRAM Size | — | [DATA_NEEDED: SRAM size] |