ATSAM3S4BA-AU vs ATSAM3S8BA-AU Comparison
Detailed side-by-side comparison of ATSAM3S4BA-AU by Microchip Technology and ATSAM3S8BA-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
ATSAM3S4BA-AU - 64MHz Cortex-M3 MCU 256KB Flash | Microchip (Tape & Reel)
ATSAM3S4BA-AU ✓ ActiveMicrochip Technology
ATSAM3S8BA-AU - Cortex-M3 64MHz 512KB Flash MCU | Microchip
ATSAM3S8BA-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3S4BA-AU | ATSAM3S8BA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | ARM Cortex-M3 (32-bit RISC) | ARM Cortex-M3 revision 2.0 |
| Core Size | 32-bit | 32-bit |
| Maximum Clock Frequency | 64 MHz | — |
| Program Memory Size | 256KB (256K x 8) Flash | 512KB (512K x 8) |
| RAM Size | 49KB SRAM | — |
| Supply Voltage Range | 1.62 V to 3.6 V | — |
| Supply Voltage (Typical) | 1.8 V / 3.3 V | — |
| Connectivity | HSMCI, I2C, I2S, IrDA, SPI, SSC, TWI, UART, USART, USB | I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB |
| DMA | Yes (peripheral DMA controller) | — |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount | — |
| Pin Count | 64 | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Series | SAM3S (SAM3S4B) | — |
| Pin Compatibility | Pin-to-pin compatible with SAM3N4B and SAM7S64 | — |
| MSL Level | [DATA_NEEDED: moisture sensitivity level] | — |
| RoHS Status | Compliant (RoHS/Green per distributor listings) | Compliant (LQFP, Grn, MRL per Mouser) |
| ECCN / HTS | [DATA_NEEDED: ECCN] | — |
| Maximum Clock Speed | — | 64 MHz |
| Program Memory Type | — | FLASH |
| SRAM Size | — | [DATA_NEEDED: SRAM size] |
| Supply Voltage | — | 1.8 V / 2.5 V / 3.3 V |
| Number of I/O | — | 47 |
| Peripherals | — | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| MPU | — | Yes (Memory Protection Unit) |
| Instruction Set | — | Thumb-2 |
| Mounting Style | — | SMD (Surface Mount) |
| Packaging | — | Tray |
| Family Compatibility | — | Pin-to-pin compatible with AT91SAM7S series |
| Touch Support | — | Native Atmel QTouch capacitive touch |