ATSAM3S1CB-AUR - 64MHz Cortex-M3 MCU, 64KB Flash | Microchip
MPN: ATSAM3S1CB-AUR ✓ فعالATSAM3S1CB-AUR نمای کلی
A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters. Within the embedded systems hierarchy, the SAM3S family sits in the 32-bit ARM-based microcontroller class, positioned above 8-bit MCUs like the PIC16 and ATmega families and below high-performance Cortex-M7 parts such as the SAMV71.
Key features of the ATSAM3S1CB-AUR include the energy-efficient ARM Cortex-M3 RISC core with its three-stage pipeline and Thumb-2 instruction set, 64 KB of single-cycle flash for program storage, 16 KB of SRAM for data and stacks, and a rich peripheral set typical of the SAM3S series, including USB device support, USARTs, SPI, TWI (I2C), and a multi-channel ADC that suits sensor acquisition and human-interface designs.
Architecturally, the Cortex-M3 core executes deterministic, low-latency interrupt handling through its Nested Vectored Interrupt Controller (NVIC), making the part well suited to real-time embedded control. The flash accelerator keeps the core fed at 64 MHz without wait-state penalties in typical code paths, while the SAM3S power architecture supports multiple low-power modes for battery-conscious designs.
Typical applications include industrial automation and control nodes, consumer appliance interfaces, metering and sensor-integration products, and USB-connected handheld equipment where 64 KB of code space and 64 MHz throughput are sufficient.
When designing with this device, plan decoupling capacitors close to each supply pin pair, budget the 64 KB flash carefully against bootloader and library overhead, and confirm industrial temperature requirements against the suffix code before layout freeze.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing comparative value beyond a standard catalog listing.
جایگزین‌های drop-in برای ATSAM3S1CB-AUR — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای ATSAM3S1CB-AUR (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Series, RoHS Status, Terminal Form.
ATSAM3S1CA-AUR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATSAM3S1CB-CU
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATSAM3S2CB-AUR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
ATSAM3S4CB-AUR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
ATSAM3S8CB-AUR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
ATSAM3S1CB-AUR حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Processor | ARM Cortex-M3 |
| Core Size | 32-Bit |
| حداکثر فرکانس کلاک | 64 MHz |
| Flash Memory Size | 64 KB (64K x 8) |
| SRAM Size | 16 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| بسته‌بندی | 100-LQFP (14x14 mm) |
| Number of Pins / Terminals | 100 |
| Terminal Form | Gull Wing |
| نوع نصب | Surface Mount |
| دمای کاری | -40C to +85C (Industrial) |
| Series | SAM3S (ATSAM3S1) |
| Packaging | Tape & Reel (TR) |
| RoHS / Green Status | RoHS Compliant, Green (per Mouser listing) |
| Peripheral Connectivity | USB, USART, SPI, TWI (I2C) (per SAM3S family) |
راهنمای پیکربندی پین ATSAM3S1CB-AUR 100-lqfp (14x14 mm)
پیکربندی پین برای ATSAM3S1CB-AUR (پکیج 100-lqfp (14x14 mm)). این IC دیجیتال شامل GPIO، رابط‌های ارتباطی (UART، SPI، I2C) و پین‌های تغذیه است. برای عملکردهای جایگزین پین و گزینه‌های پیکربندی به دیتاشیت سازنده مراجعه کنید. ضروری برای طراحی سیستم‌های نهفته و چیدمان PCB.
داده پین‌آوت تفصیلی موجود نیست برای ATSAM3S1CB-AUR.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
ATSAM3S1CB-AUR مناسب است برای 6 کاربردs: Industrial Automation and Control, USB-Connected Handheld Instruments, Metering and Sensor Acquisition, Consumer Appliance Interfaces, Networking and Communication Modules, Security and Surveillance Devices.
Industrial Automation and Control
The ATSAM3S1CB-AUR fits factory automation nodes such as sensor hubs, motor-adjacent control boards, and I/O modules because its 64 MHz Cortex-M3 core delivers deterministic interrupt response through the NVIC while the 64 KB flash holds protocol stacks and control loops. Its rich SAM3S peripheral set - USARTs, SPI, TWI (I2C), and a multi-channel ADC - lets one MCU aggregate field sensors and drive actuators over a 1.62V to 3.6V single supply. The industrial -40C to +85C temperature rating and RoHS Green LQFP-100 package suit standard control-cabinet assembly. Trade-off: at 64 KB flash, allocate code space carefully when combining a bootloader with communication stacks.
پیشنهادی
USB-Connected Handheld Instruments
Battery-powered and benchtop handheld instruments benefit from the SAM3S series USB device controller: the ATSAM3S1CB-AUR enumerates as a USB device so test data streams to a PC without a separate interface chip. The 64 MHz core handles USB full-speed protocol servicing plus measurement processing within its interrupt budget, while 16 KB SRAM accommodates endpoint buffers and a data capture window. Running from a 1.62V to 3.6V rail supports a single-cell Li-ion or 3.3V LDO supply architecture, and SAM3S low-power modes extend battery runtime between charges. Design consideration: keep endpoint buffer sizes within the 16 KB SRAM alongside application state.
پیشنهادی
Metering and Sensor Acquisition
The ATSAM3S1CB-AUR suits electricity, water, and process metering front ends because the SAM3S ADC provides multi-channel analog acquisition synchronized to timers, while the 64 MHz core performs scaling, filtering, and communication formatting. TWI and SPI interfaces connect precision converters and real-time clocks, and USART links handle meter-bus or RS-485 communication through external transceivers. The 64 KB flash stores calibration tables and firmware with room for an in-field update bootloader. The industrial temperature rating covers outdoor and panel installations. Trade-off: for metrology-grade accuracy, pair the MCU with a dedicated precision ADC over SPI rather than relying on the integrated converter.
پیشنهادی
Consumer Appliance Interfaces
Appliance control panels - displays, keypads, and motor-driven functions - map well onto the ATSAM3S1CB-AUR: the 100-pin LQFP supplies enough GPIO to drive segment LCDs or LED matrices and scan key matrices while the 64 MHz Cortex-M3 executes user-interface state machines with headroom. TWI connects touch controllers and EEPROM for user settings, and the USB device port enables PC-linked configuration tools on premium models. The Green RoHS LQFP-100 package flows through standard consumer reflow assembly. Consider the 64 KB flash budget when including graphics fonts and localization strings, and upsize to ATSAM3S4CB-AUR (same footprint) if content grows.
پیشنهادی
Networking and Communication Modules
The ATSAM3S1CB-AUR serves as the host controller in embedded communication modules: USARTs connect to Wi-Fi, Bluetooth, or cellular modules over AT-command interfaces, while SPI drives Ethernet controllers such as Microchip ENC/MAC-PHY devices. The 64 MHz core sustains sustained data throughput with DMA offload typical of the SAM3S DMA controller, and 64 KB flash accommodates both the application and a field-update bootloader. The 1.62V to 3.6V supply simplifies integration into 3.3V module designs. Performance note: size ring buffers in the 16 KB SRAM to absorb radio latency bursts without overflow, and reserve flash headroom for protocol library growth.
پیشنهادی
Security and Surveillance Devices
Entry-level security products - access-control panels, door controllers, and alarm hubs - leverage the ATSAM3S1CB-AUR's balance of GPIO count, serial interfaces, and processing power. The 100-pin LQFP provides the I/O to drive relays, readers (Wiegand over GPIO/timers), and status indicators, while USART/SPI link to RF receivers and GSM modules. The Cortex-M3 core runs authentication and event-logging firmware within 64 KB flash, with TWI EEPROM storing credential databases. The industrial temperature rating tolerates unconditioned enclosures. Trade-off: implement secure storage and code protection using the SAM3S flash lock regions, and validate that the 16 KB SRAM holds the credential index for your installation size.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای ATSAM3S1CB-AUR — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | ATSAM3S1CA-AUR | ATSAM3S1CB-CU | ATSAM3S2CB-AUR | ATSAM3S4CB-AUR |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M3, 64 MHz | ARM Cortex-M3, 64 MHz | ARM Cortex-M3, 64 MHz | ARM Cortex-M3, 64 MHz | ARM Cortex-M3, 64 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 128 KB | 256 KB |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Commercial (0C to +70C) | Industrial | Industrial |
| Packaging | Tape & Reel (R suffix) | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
| Lifecycle Status | Active | Active | Active | Active | Active |
تفاوت‌های کلیدی
- Lowest memory tier of the pin-compatible SAM3S 100-LQFP family (در مقابلATSAM3S4CB-AUR)
- Industrial temperature rating for harsh environments (در مقابلATSAM3S1CB-CU)
- Integrated USB device controller in a 32-bit MCU class (در مقابلSTM32F101R8T6)
یادداشت‌های طراحی
Power the ATSAM3S1CB-AUR from a clean 3.3V rail within its 1.62V to 3.6V operating range. Place a 100 nF ceramic capacitor at each VDD/VDDIO pin pair plus bulk 10 uF near the supply entry, per the SAM3S datasheet decoupling guidance. The 100-pin LQFP has multiple supply pins, and omitting any decoupling capacitor commonly manifests as sporadic core resets or USB enumeration failures at 64 MHz operation.
Lay out the 14x14 mm LQFP-100 footprint with short, direct traces for the USB differential pair (90-ohm matched if possible), and keep crystal traces under 10 mm with guard ground for the 64 MHz reference. Use a solid ground plane on layer 2 to return the ADC and high-speed currents. Follow Microchip SAM3S reference designs for the EDBG/SWD programming connector placement to keep in-circuit debug accessible during production.
Do not assume pin compatibility between B-suffix and C-suffix SAM3S variants without checking the peripheral multiplexing tables - the die differs in which function lands on each pin. Also budget the 64 KB flash conservatively: a USB stack plus bootloader can consume a large fraction of it. If firmware growth is likely, drop in the pin-compatible ATSAM3S4CB-AUR (256 KB) at design time rather than respinning later.
Estimated: a Cortex-M3 flash MCU at 64 MHz typically dissipates well under 0.5W from a 3.3V rail, so a standard LQFP-100 footprint with modest copper pour is thermally sufficient; no heatsink is needed. Confirm against the datasheet power consumption tables for your clock configuration, especially when USB and the ADC run concurrently.
اطلاعات انطباق
Mouser listing describes the part as LQFP, Green, industrial temperature - Green/RoHS per Microchip cataloging. REACH, halogen-free, and conflict minerals statuses not stated in provided data.