ATSAM3S1AA-AU vs ATSAM3S2AA-AU Comparison
Detailed side-by-side comparison of ATSAM3S1AA-AU by Microchip Technology and ATSAM3S2AA-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
ATSAM3S1AA-AU - 64MHz Cortex-M3 MCU 64KB Flash | Microchip
ATSAM3S1AA-AU ✓ ActiveMicrochip Technology
ATSAM3S2AA-AU - 64MHz Cortex-M3 MCU 128KB Flash | Microchip (Tape & Reel)
ATSAM3S2AA-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAM3S1AA-AU | ATSAM3S2AA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | ARM Cortex-M3 | ARM Cortex-M3 |
| Core Size | 32-bit | 32-Bit |
| Maximum Clock Speed | 64 MHz | — |
| Flash Memory | 64 KB (64K x 8) | 128 KB (131 KB per some distributor listings) |
| SRAM | 16 KB (16K x 8) | 32 KB |
| Supply Voltage (Vdd) | 1.62 V to 3.6 V | — |
| Core Supply Voltage | 1.08 V to 1.32 V (internal regulator) | — |
| I/O Count | 47 | — |
| Package | 48-LQFP (7x7 mm), gull-wing leads | 48-LQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Program Memory Type | Flash | — |
| Connectivity | USB device, USART, SPI, TWI (I2C) | UART, SPI, I2C (TWI), I2S, USB 2.0 Full-Speed |
| Life Cycle Stage | Active | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (Industrial) |
| ADC Resolution | [DATA_NEEDED: ADC resolution and channels] | [DATA_NEEDED: ADC resolution and channels] |
| RoHS Status | RoHS compliant (per distributor listings) | Compliant (Green package per distributor listing) |
| Timers / Peripherals | [DATA_NEEDED: timer and peripheral detail] | — |
| Maximum Clock Frequency | — | 64 MHz |
| Supply Voltage Range | — | 1.62 V to 3.6 V |
| Technology | — | CMOS |
| Instruction Set | — | RISC / Thumb-2 |
| Pin-to-Pin Compatibility | — | Compatible with SAM3N2A |
| Packaging | — | Tape & Reel (TR) |
| Peripheral Features | — | DMA, parallel data capture mode on PIOs |
| EEPROM / Data Flash | — | [DATA_NEEDED: EEPROM size] |
| Number of I/O | — | [DATA_NEEDED: GPIO count] |