ATSAM3U4EA-CU vs ATSAM4S4CA-CU Comparison
Detailed side-by-side comparison of ATSAM3U4EA-CU by Microchip Technology and ATSAM4S4CA-CU 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
ATSAM3U4EA-CU - 96MHz Cortex-M3 MCU 256KB Flash LFBGA-144 | Microchip
ATSAM3U4EA-CU ✓ ActiveMicrochip Technology
ATSAM4S4CA-CU - 120MHz Cortex-M4 MCU 256KB Flash | Microchip
ATSAM4S4CA-CU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3U4EA-CU | ATSAM4S4CA-CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $12.05 | $3.45 |
| Core Architecture | ARM Cortex-M3 (32-bit RISC) | ARM Cortex-M4 with FPU and DSP instructions |
| Maximum CPU Clock | 96 MHz | — |
| Instruction Set | Thumb-2 | — |
| Program Memory | 256 KB Flash (dual-bank, 128-bit wide access) | — |
| SRAM | 52 KB | 64 KB |
| Operating Voltage | 1.8 V / 3.3 V | — |
| Package | 144-ball LFBGA (10x10 mm) | 100-ball TFBGA (9x9 mm) |
| USB | High-Speed USB 2.0 Device (480 Mbps, integrated transceiver) | — |
| Memory Card Interface | High-Speed MCI (SDIO/SD/MMC) | — |
| External Bus Interface | Yes (EBI - SRAM, NOR, NAND) | — |
| Memory Protection Unit | Yes (MPU) | — |
| GPIOs | Up to 96 | — |
| ADC | 12-bit | 12-bit successive approximation |
| Mounting Type | Surface Mount (BGA) | Surface Mount |
| Operating Temperature | -40°C to +85°C | — |
| Maximum Clock Frequency | — | 120 MHz |
| Program Memory (Flash) | — | 256 KB (256K x 8) |
| Supply Voltage (VDDIO/VDDANA) | — | 1.2 V core / 3.3 V I/O (per datasheet) |
| Operating Temperature Range | — | -40 C to +85 C (industrial) |
| USB Interface | — | USB 2.0 Full-Speed Device with embedded transceiver |
| External Bus Interface (EBI) | — | Supports SRAM, PSRAM, NOR Flash, NAND Flash, LCD modules |
| Touch Library Support | — | Microchip QTouch capacitive touch (buttons, sliders, wheels) |
| Communication Peripherals | — | USART, SPI, TWI (I2C), HS USB |
| Timers/PWM | — | 16-bit and 32-bit timers with PWM channels |
| MSL Level | — | 3 (per JEDEC J-STD-020, reflow up to 260 C) |
| RoHS Status | — | Compliant |
| Lead-Free | — | Yes (Green / Pb-free) |
| Product Family Pin Compatibility | — | Pin-to-pin compatible with SAM7S, SAM3N, SAM3S, SAM4N devices |