ATSAM3S1AA-AU Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip ATSAM3S1AA-AU is a 32-bit ARM Cortex-M3 microcontroller operating at up to 64 MHz with 64 KB Flash and 16 KB SRAM, housed in an LQFP-48 package. It integrates an ADC, DMA, boundary scan, and multiple communication peripherals for embedded control designs.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- ATSAM3S1AA-AU Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ATSAM3S1AA-AU?
- 32-bit ARM Cortex-M3 core running at up to 64 MHz delivers strong computational performance for fixed-point control applications
- Integrated 12-bit ADC with up to 8 channels enables precise analog signal acquisition without external converters
- DMA controller and boundary scan (JTAG) support streamline data transfers and in-circuit testing in industrial designs
What is ATSAM3S1AA-AU used for?
The ATSAM3S1AA-AU is well suited for low-power embedded control systems, industrial sensor nodes, and motor drive applications requiring a compact 48-pin microcontroller. Its ARM Cortex-M3 core and integrated ADC make it a strong choice for medical monitoring devices and IoT edge nodes. The LQFP-48 package simplifies PCB layout for space-constrained designs targeting battery-powered or cost-sensitive products.
What are the specifications of ATSAM3S1AA-AU?
| YTEOL | 8.23 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M3 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G48 |
| Low Power Mode | YES |
| Number of DMA Channels | 22 |
| Number of External Interrupts | 30 |
| Number of I/O Lines | 34 |
| Number of Serial I/Os | 4 |
| Number of Timers | 4 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP48,.35SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| RAM (bytes) | 16384 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Speed | 64MHz |
| Supply Voltage-Max | 1.95V |
| Supply Voltage-Min | 1.8V |
| Supply Voltage-Nom | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.25 |
Where can I find the ATSAM3S1AA-AU datasheet?
ATSAM3S1AA-AU Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for ATSAM3S1AA-AU?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum clock frequency and memory configuration of the ATSAM3S1AA-AU?
The ATSAM3S1AA-AU operates at up to 64 MHz using a 32-bit ARM Cortex-M3 core, paired with 64 KB of internal Flash and 16 KB of SRAM, providing sufficient resources for many embedded control and IoT edge applications.
Which analog acquisition features does the ATSAM3S1AA-AU integrate for sensor-based designs?
The ATSAM3S1AA-AU includes a 12-bit ADC supporting up to 8 input channels, enabling direct connection to analog sensors without external acquisition ICs. This integration reduces BOM cost and board area for sensor-driven embedded systems targeting industrial or medical applications.
How does the LQFP-48 package of the ATSAM3S1AA-AU compare to larger MCU packages for PCB layout?
The LQFP-48 package measures 7 mm x 7 mm with a 0.5 mm pin pitch, offering a compact footprint that reduces PCB area consumption compared to LQFP-64 or LQFP-100 alternatives. This makes the ATSAM3S1AA-AU a preferred choice when board space is limited to under 10 mm x 10 mm per MCU placement zone.
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