ATSAM3S2AA-AU vs ATSAM4S2AA-AU Comparison
Detailed side-by-side comparison of ATSAM3S2AA-AU by Microchip Technology and ATSAM4S2AA-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
ATSAM3S2AA-AU - 64MHz Cortex-M3 MCU 128KB Flash | Microchip (Tape & Reel)
ATSAM3S2AA-AU ✓ ActiveMicrochip Technology
ATSAM4S2AA-AU - Cortex-M4 120MHz MCU 128KB Flash | Microchip
ATSAM4S2AA-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3S2AA-AU | ATSAM4S2AA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | ARM Cortex-M3 | — |
| Core Size | 32-Bit | — |
| Maximum Clock Frequency | 64 MHz | 120 MHz |
| Flash Memory | 128 KB (131 KB per some distributor listings) | 128 KB |
| SRAM | 32 KB | 64 KB |
| Supply Voltage Range | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Technology | CMOS | — |
| Connectivity | UART, SPI, I2C (TWI), I2S, USB 2.0 Full-Speed | — |
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | Industrial range (GREEN, IND TEMP per distributor data) |
| Instruction Set | RISC / Thumb-2 | Thumb-2 with DSP instructions |
| Pin-to-Pin Compatibility | Compatible with SAM3N2A | — |
| Packaging | Tape & Reel (TR) | Tray |
| RoHS Status | Compliant (Green package per distributor listing) | — |
| Peripheral Features | DMA, parallel data capture mode on PIOs | — |
| EEPROM / Data Flash | [DATA_NEEDED: EEPROM size] | — |
| Number of I/O | [DATA_NEEDED: GPIO count] | — |
| ADC Resolution | [DATA_NEEDED: ADC resolution and channels] | — |
| Core | — | ARM Cortex-M4 (32-bit) |
| Memory Protection Unit | — | Yes (MPU) |
| Typical Low-Power Consumption | — | 180 uA (manufacturer published) |
| Series | — | SAM4S |
| Core Width | — | 32-bit |
| Data ROM Size | — | [DATA_NEEDED: Data ROM Size] |
| Flash Features | — | ECC, Security Bit, Lock Bits |
| Moisture Sensitivity Level | — | [DATA_NEEDED: MSL Level] |