ATSAM4S-EK vs ATSAM3U-EK Comparison
Detailed side-by-side comparison of ATSAM4S-EK by Microchip Technology and ATSAM3U-EK by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | ATSAM4S-EK | ATSAM3U-EK |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Development Boards | Development Boards |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $179.40 | $119.40 |
| Product Type | Evaluation / Development Kit | Evaluation Kit / Development Board |
| Target MCU Family | Atmel SMART SAM4S (ARM Cortex-M4) | — |
| Supported MCUs | SAM4S8 and SAM4S16 | — |
| Core | ARM Cortex-M4 32-bit RISC | 32-bit ARM Cortex-M3 |
| Maximum CPU Clock | 120 MHz | — |
| On-board MCU Flash (SAM4S16) | 1024 KB | — |
| On-board MCU SRAM | 128 KB | — |
| On-board Storage | NAND Flash | — |
| Display | Integrated TFT LCD (touch-capable) | — |
| Touch Interface | Atmel QTouch library (buttons, wheels, sliders) | — |
| USB Interface | Full-speed USB Device port | — |
| Network Interface | Ethernet (EMAC) physical interface | — |
| Storage Expansion | SD/MMC card slot | — |
| Supported IDE | Atmel Studio 6 (now Microchip Studio) | Atmel Studio 7 / Microchip Studio |
| Software Framework | Atmel Software Framework (ASF) | — |
| Crystal Frequencies | 0.032768 MHz (RTC) / 12 MHz (CPU reference) | — |
| Series | AT91SAM | — |
| RoHS Status | Compliant | Compliant |
| Target MCU | — | SAM3U4E (AT91SAM3 family) |
| Core Speed | — | 96 MHz |
| SRAM | — | 48 KB |
| ROM | — | 16 KB |
| NAND Flash Support | — | 256 KB |
| Crystals On Board | — | 32.768 kHz and 12 MHz |
| USB | — | High-Speed USB with integrated transceiver |
| Debug Interface | — | JTAG/SWD |
| Board Dimensions | — | [DATA_NEEDED: board dimensions] |
| Supply Voltage | — | [DATA_NEEDED: supply voltage] |
| Operating Temperature | — | [DATA_NEEDED: operating temperature] |
| Unit Price | — | USD 119.40 (as of 2026-09-20) |