ATSAM3S1BA-AUR - 64MHz ARM Cortex-M3 MCU | Microchip (Tape & Reel)
MPN： ATSAM3S1BA-AUR ✓ 啟用中ATSAM3S1BA-AUR 概覽
A microcontroller is a programmable semiconductor that integrates a processor core, nonvolatile program memory, volatile data memory, I/O ports, and peripherals into one compact device. Within the hierarchy of embedded semiconductors, an ARM Cortex-M3 MCU belongs to the RISC microcontroller category and provides a practical platform for industrial equipment, data acquisition, communications controllers, embedded automation, and connected monitoring systems.
The ATSAM3S1BA-AUR combines a maximum 64 MHz operating speed with 64 KB of Flash organized as 64K × 8. Its ARM Cortex-M3 core supports efficient 32-bit instruction execution, while the 64-LQFP package exposes 47 I/O ports for external sensors, actuators, indicators, and interface circuits. The target is identified as an industrial-temperature-grade component, making it appropriate for industrial equipment where operating-temperature requirements must be checked against the complete device documentation.
Because the part belongs to the SAM3S family, it should be treated as an embedded control component rather than a general-purpose processor. Its peripheral resources and exact pin functions remain essential design inputs, but the supplied verified records do not enumerate the complete timer, UART, SPI, I2C, ADC, and interrupt assignments. Designers should therefore confirm the authoritative pinout, peripheral mapping, electrical limits, and package drawing before schematic capture or PCB layout release.
Typical uses include industrial sensor nodes, serial protocol bridges, compact automation controllers, motor and actuator supervisory systems, and data-acquisition equipment. In these systems, the 64 MHz Cortex-M3 core can execute control logic, while the 47 available I/O ports reduce the need for external I/O expanders. The 64 KB Flash capacity is suitable for moderate firmware footprints, although software sizing must include bootloader, application code, and update functions.
The primary design consideration is package and software continuity. The 64-pin 10 mm × 10 mm LQFP footprint requires adequate thermal copper and careful lead-clearance planning, but it avoids the fine-pitch assembly complexity of leadless packages. Before substitution, verify pin multiplexing, peripheral availability, clock configuration, memory size, operating-temperature grade, and the exact ordering suffix.
This product record combines verified distributor identification, active lifecycle information, package details, practical application guidance, and explicitly qualified drop-in comparisons. It also separates confirmed parameters from unavailable specifications, helping engineers make a reliable sourcing decision without inventing electrical or pin-level data.
直接替換替代品，適用於 ATSAM3S1BA-AUR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAM3S1BA-AUR （相同外形與佔位） — 差異在於 Flash Memory, RoHS Status, SRAM, Package, Core Processor.
ATSAM3S2BA-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM3S4BA-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM3S1BB-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM3S1AA-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM3S1BA-AUR 最大額定值與電氣特性
| Product Type | 32-bit ARM Cortex-M3 RISC Flash microcontroller |
| Manufacturer | Microchip Technology |
| Maximum Clock Speed | 64 MHz |
| Processor Core | ARM Cortex-M3 |
| Architecture | 32-bit RISC |
| Flash Memory | 64 KB (64K × 8) |
| SRAM | 16 KB |
| Number of I/O Ports | 47 |
| 封裝 | 64-LQFP, 10 mm × 10 mm |
| 腳位數 | 64 pins |
| 安裝類型 | Surface mount |
| Package Code | LFQFP |
| Lead Form | Gull wing |
| Temperature Grade | Industrial |
| 生命週期狀態 | Active |
ATSAM3S1BA-AUR lfqfp 腳位配置指南
ATSAM3S1BA-AUR（lfqfp 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAM3S1BA-AUR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM3S1BA-AUR 適用於 6 應用s: Industrial Sensor Node, Data-Acquisition Controller, Serial Protocol Bridge, Embedded Automation Controller, Compact Equipment Monitor, Actuator and Interface Controller.
Industrial Sensor Node
The ATSAM3S1BA-AUR fits compact industrial sensor nodes because its 64 MHz ARM Cortex-M3 core can execute acquisition control, filtering, diagnostics, and communication protocols while the 47 I/O ports connect discrete sensors and status signals. A 64 KB Flash footprint provides room for a moderate firmware image, and 16 KB of SRAM supports buffered measurements and protocol state. The 64-LQFP package remains manufacturable through conventional leaded assembly. Before finalizing the node, engineers should verify the exact ADC, timer, UART, and communication pin assignments in the manufacturer pinout, since the supplied records do not establish those functions. The industrial temperature grade also makes the part a candidate for equipment that operates above consumer-temperature environments, subject to confirmation of the published operating limits.
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Data-Acquisition Controller
The ATSAM3S1BA-AUR is suitable for a compact data-acquisition controller when the firmware must combine timing, external I/O handling, and local buffering. Its 32-bit Cortex-M3 architecture operates at up to 64 MHz, providing more arithmetic capability than an 8-bit controller, while 16 KB of SRAM can hold sampled data and working variables. The 47 I/O ports allow sensors, trigger inputs, and status indicators to share the same package. Designers should confirm whether the exact device includes the required ADC channels, timers, and external memory interface because those peripheral details were not supplied in the verified records. PCB planning must also preserve the 10 mm × 10 mm LQFP footprint and adequate copper area under the leaded body.
推薦
Serial Protocol Bridge
The ATSAM3S1BA-AUR can implement a serial protocol bridge because a 64 MHz Cortex-M3 core provides ample processing capacity for simultaneous communication tasks, while its 47 I/O ports support multiple interface and control signals. A 64 KB Flash region can hold a focused protocol-conversion firmware image, and 16 KB of SRAM can support temporary frame buffers. The implementation can be organized around the device’s verified communication peripherals once their exact pin mappings are confirmed from the manufacturer documentation. In a bridge design, buffering, timeout handling, and fault recovery must be validated under worst-case traffic rather than inferred from CPU frequency alone. The 64-pin LQFP package also leaves a practical route to a through-hole-style assembly process.
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Embedded Automation Controller
The ATSAM3S1BA-AUR is appropriate for embedded automation controllers that supervise relays, valves, indicators, and external industrial modules. The 32-bit Cortex-M3 core at up to 64 MHz supports multitasking, diagnostics, and deterministic control code, while the available 47 I/O ports reduce the need for a separate general-purpose I/O expander. Its 64 KB Flash and 16 KB SRAM fit moderate control firmware but should be checked against bootloader and field-update overhead. For machinery or continuous-duty equipment, the published industrial grade must be compared with the enclosure’s ambient range. The principal engineering task is to validate the timer outputs, interrupt behavior, and safety shutdown path in the exact device configuration before firmware and schematic signoff.
推薦
Compact Equipment Monitor
The ATSAM3S1BA-AUR supports compact equipment monitoring by combining a 64 MHz ARM Cortex-M3 core, 64 KB of Flash, and 47 I/O ports in one 64-LQFP device. The controller can sample external conditions, maintain operating state, drive local indicators, and publish diagnostics through a configured serial interface. With 16 KB of SRAM, it can retain recent measurements or event records without requiring a large external memory device for modest workloads. The package is relatively large for a wearable but practical for industrial equipment requiring leaded-package assembly and inspection visibility. Designers should verify the exact analog and timer resources, since no verified ADC specifications were supplied. A practical design also needs watchdog, reset, brownout, and communication-failure recovery behavior validated in software and system-level tests.
推薦
Actuator and Interface Controller
The ATSAM3S1BA-AUR can act as a local actuator and interface controller in equipment where a central processor delegates timing and discrete I/O management to a dedicated microcontroller. The 47 available I/O ports can support limit sensors, command outputs, indicators, and external interface lines, while the 64 MHz Cortex-M3 core executes the control sequence with 32-bit arithmetic support. The 64 KB Flash and 16 KB SRAM provide a compact firmware platform for moderate real-time logic. Before selecting it for motor or safety-related outputs, engineers must verify the exact timer, PWM, interrupt, and logic-level resources for this orderable part. Output protection, fail-safe states, and timing tolerances should be established at the application level rather than assumed from the processor specification.
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推薦產品摘要
工程參考資料，適用於 ATSAM3S1BA-AUR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAM3S2BA-AU | ATSAM3S4BA-AU | ATSAM3S1BB-AU | ATSAM3S1AA-AU |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) |
主要差異化特點
- Confirmed 64 KB Flash configuration (對比ATSAM3S4BA-AU)
- Confirmed 47-port I/O integration (對比ATSAM3S2BA-AU)
- Verified 64 MHz operating rate and Cortex-M3 architecture (對比ATSAM3S1BB-AU)
- Documented active lifecycle status (對比ATSAM3S1AA-AU)
設計說明
Design the PCB around the verified 64-pin LQFP footprint with a 10 mm × 10 mm body and gull-wing leads. Preserve the manufacturer land pattern, pin-1 orientation, solder-mask and paste geometry, and courtyard rather than deriving dimensions from the body size alone. The leaded package benefits from visual inspection but still requires adequate annular rings and solder volume. Place decoupling and programming or debug access points so they do not obstruct the leads or complicate rework.
Do not assign supply pins or input thresholds from the inconsistent secondary search snippets. Verify the complete power architecture, operating supply range, internal regulator behavior, decoupling requirements, and absolute maximum ratings in the ATSAM3S1BA-AUR manufacturer datasheet. Check every supply domain against the schematic and include the required local capacitors exactly as specified. Brownout behavior, reset thresholds, and startup sequencing should be tested because they determine whether connected peripherals remain in a safe state.
Treat a shared family name as insufficient proof of interchangeability. Before substituting ATSAM3S2BA-AU, ATSAM3S4BA-AU, ATSAM3S1BB-AU, or ATSAM3S1AA-AU, compare the pin table, memory sizes, peripheral mix, clock tree, interrupt mapping, electrical limits, and temperature grade. A footprint-compatible package does not guarantee identical peripheral placement or firmware behavior. Preserve the original footprint and BOM flexibility only after schematic and firmware reviews approve the alternative.
Route clock, debug, programming, and communication signals away from noisy analog or switching nodes, while keeping decoupling close to the relevant supply pins. The verified records identify 47 I/O ports but do not provide the complete mux matrix, so signal assignment must begin with the authoritative pin table. Validate the proposed mapping in the development tool and confirm that no planned function conflicts with a boot, reset, debug, or peripheral-remap function.
Estimate board-level temperature rise from actual processor dissipation, ambient temperature, enclosure conditions, and the package’s published thermal parameters. The supplied evidence does not include a verified junction-temperature limit, thermal resistance, or maximum power figure, so no numerical estimate is presented. Provide copper around the LQFP body where the manufacturer land pattern permits it, avoid enclosing the assembly without thermal analysis, and measure temperature inside the final enclosure during worst-case operating tests.
合規資訊
The verified records identify an industrial-temperature-grade ARM Cortex-M3 microcontroller but do not provide product-specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements. AEC-Q100 is not applicable to the general-purpose industrial MCU unless a separate qualified orderable variant is specified.