ATSAM3A4CA-CU vs ATSAM3A4CA-AU Comparison
Detailed side-by-side comparison of ATSAM3A4CA-CU by Microchip Technology and ATSAM3A4CA-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
ATSAM3A4CA-CU - 84MHz Cortex-M3 MCU 256KB Flash | Microchip
ATSAM3A4CA-CU ✓ ActiveMicrochip Technology
ATSAM3A4CA-AU - 84MHz Cortex-M3 MCU 256KB Flash | Microchip
ATSAM3A4CA-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3A4CA-CU | ATSAM3A4CA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.40 | $12.30 |
| Core Processor | ARM Cortex-M3 revision 2.0 | ARM Cortex-M3 revision 2.0 |
| Core Size | 32-bit, single-core | 32-bit |
| Maximum Clock Speed | 84 MHz | 84 MHz |
| Flash Memory | 256KB (256K x 8), 2 x 128KB banks | — |
| SRAM | 64KB, 2 x 32KB banks | — |
| Supply Voltage Range | 1.62 V to 3.6 V (1.8 V / 2.5 V / 3.3 V typical) | — |
| Connectivity | CAN, I2C (TWI), IrDA, LIN, MMC/SD, SPI, SSC, UART/USART | CAN, I2C, IrDA, LIN, MMC, SPI, SSC, UART/USART, USB |
| Instruction Set | Thumb-2 | Thumb-2 |
| Memory Protection | MPU (Memory Protection Unit) | MPU (Memory Protection Unit) |
| SysTick Timer | 24-bit | — |
| Interrupt Controller | NVIC (Nested Vectored Interrupt Controller) | — |
| Package | 100-TFBGA (9 x 9 mm) | 100-LQFP (14 x 14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C |
| RoHS Status | Compliant (green package) | — |
| Series | SAM3A | SAM3A |
| Program Memory Size | — | 256 KB (2 x 128 KB banks) |
| Program Memory Type | — | FLASH |
| RAM Size | — | 64 KB (2 x 32 KB banks) |
| Supply Voltage | — | 1.62 V to 3.6 V |
| Data Converters | — | A/D 16x12-bit; D/A 2x12-bit |
| Oscillator Type | — | Internal |
| SysTick Counter | — | 24-bit |