ATSAM3S1CA-AUR - 32-bit Cortex-M3 MCU 64MHz 64KB Flash | Microchip
부품 번호: ATSAM3S1CA-AUR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.35 | $3,350.00 |
ATSAM3S1CA-AUR 개요
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the controller layer of an embedded system hierarchy: MCU -> embedded processor -> semiconductor IC. The SAM3S series belongs to Microchip (formerly Atmel) ARM-based flash MCU portfolio, targeting cost-sensitive 32-bit designs that need USB connectivity and rich analog peripherals.
Key features of the ATSAM3S1CA-AUR include the 64 MHz Cortex-M3 core with a nested vectored interrupt controller, 64KB (64K x 8) of single-cycle FLASH memory, 16KB of SRAM, and a wide 1.62V to 3.6V single-supply operating range. The device integrates USB 2.0 full-speed device connectivity, multiple USART/UART serial ports, SPI and TWI (I2C) interfaces, a 12-bit ADC with multiple input channels, PWM timers, and RTC/calendar functions - all typical of the SAM3S peripheral set.
Architecturally, the SAM3S family uses the ARMv7-M Cortex-M3 processor with Harvard bus structure, enabling concurrent instruction and data access for deterministic real-time performance. Flash memory is programmed through the integrated ROM bootloader or JTAG/SWD interfaces, and the device is supported by Microchip (Atmel) Studio and the SAM series tool ecosystem.
Typical applications span industrial control, home appliances such as washing machines and microwave ovens, 3D printers, consumer audio-video products, and portable battery-powered devices that benefit from the 1.62V minimum supply and USB device port.
Design considerations: keep the 3.3V supply within the 1.62V-3.6V range, decouple all VDD/VDDIO pairs, and budget flash carefully at 64KB - larger SAM3S variants in the same LQFP-100 footprint provide 128KB to 512KB for code growth without a PCB change.
This page adds value beyond the datasheet by consolidating distributor availability, drop-in same-package alternatives, pricing tiers as of 2026-09-19, and practical design notes in one AI-citable resource.
드롭인 대체품: ATSAM3S1CA-AUR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM3S1CA-AUR (동일 폼 팩터 및 풋프린트) — 차이점: RoHS Status, Series, Package, Packaging, Supply Voltage Range.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAM3S2CA-AUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
가격 문의
데이터시트 보기 →ATSAM3S4CA-AUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM3S8CA-AUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM3SD8CA-AUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.19 / 개
데이터시트 보기 →ATSAM3S1CA-AUR 최대 정격 & 전기적 특성
| Core Processor | ARM Cortex-M3 |
| Core Size | 32-bit |
| 최대 클록 주파수 | 64 MHz |
| Program Memory Size | 64KB (64K x 8) FLASH |
| RAM Size | 16KB SRAM |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Series | SAM3S |
| 패키지 | 100-LQFP (14 x 14 mm) |
| 실장 유형 | Surface Mount |
| 핀 수 | 100 |
| 동작 온도 | -40C to +85C (industrial) |
| Connectivity | USB 2.0 Full-Speed Device, USART, UART, SPI, TWI (I2C) |
| Analog Peripherals | 12-bit ADC |
| Timers / PWM | PWM, RTC, general-purpose timers |
| Debug Interfaces | JTAG / SWD |
| RoHS 상태 | Compliant (green/RoHS per distributor listings) |
ATSAM3S1CA-AUR 100-lqfp (14 x 14 mm) 핀 구성 가이드
ATSAM3S1CA-AUR(100-lqfp (14 x 14 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATSAM3S1CA-AUR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAM3S1CA-AUR 적합 용도: 6 애플리케이션s: Home Appliance Control, USB Device Peripherals, 3D Printer Control Boards, Industrial Sensing and Data Logging, Consumer Audio-Video Accessories, Portable Battery-Powered Devices.
Home Appliance Control
The ATSAM3S1CA-AUR fits appliance control boards (washing machines, microwave ovens, dishwashers) because its 64 MHz Cortex-M3 core handles motor sequencing and UI responsiveness while the 1.62V-3.6V industrial-grade supply tolerates noisy mains-derived power rails. The 12-bit ADC reads potentiometer selectors, NTC thermistors, and current-sense signals; PWM outputs drive triac gates, buzzer feedback, and LED dimming. Its 64KB flash is typically sufficient for a full appliance state machine plus HMI logic. In a typical design, the MCU runs at 3.3V from a small buck or linear regulator, with USART or TWI linking to display drivers and EEPROM for cycle-parameter storage, delivering deterministic real-time control without an RTOS.
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USB Device Peripherals
With an integrated USB 2.0 full-speed device controller, the ATSAM3S1CA-AUR is a natural fit for USB HID devices, virtual COM ports (CDC class), and USB mass-storage accessories. The 64 MHz Cortex-M3 sustains the 12 Mbps USB data rate with headroom for application code, and the ROM bootloader allows field firmware updates over USB without a programmer. The 100-LQFP package exposes enough GPIO for keypad matrices and status LEDs alongside the USB pins. Designs typically use 3.3V operation with a 22-ohm series resistor on D+/D- and 1.5k pull-up handled internally. Because flash is 64KB, keep USB class stacks lean, or migrate to the pin-compatible ATSAM3S4CA-AUR if the class stack plus application outgrows the budget.
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3D Printer Control Boards
Consumer 3D printer electronics benefit from the ATSAM3S1CA-AUR combination of a 64 MHz Cortex-M3 core, hardware PWM channels, and USB connectivity. The MCU executes stepper-motion planning and interpolation loops deterministically, while PWM timers control heater power via MOSFET drivers and the 12-bit ADC reads NTC thermistors for PID temperature regulation of hotend and bed. The USB device port provides host G-code streaming through a CDC virtual COM port, and USART ports connect to LCD controller boards or additional motor-driver nodes. With 64KB flash, firmware must be optimized; boards expecting Marlin-class feature sets usually migrate to the pin-compatible ATSAM3S8CA-AUR (512KB) on the identical footprint.
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Industrial Sensing and Data Logging
The ATSAM3S1CA-AUR serves industrial data-loggers and sensor nodes where the 12-bit ADC digitizes 4-20 mA loops scaled by shunt resistors or bridge sensors, and the industrial -40C to +85C temperature range matches panel-mounted environments. USART and SPI interfaces link to RS-485 transceivers and external flash for logged data, while the RTC maintains timestamps across power cycles. Operation from 1.62V-3.6V allows direct Li-battery powering in wireless nodes. Typical circuits place a precision voltage reference on an ADC channel for ratiometric correction. The 100-LQFP exposes abundant GPIO for relay outputs and optocoupler inputs, letting one MCU consolidate acquisition, logging, and local control in a single low-cost 32-bit device.
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Consumer Audio-Video Accessories
In entertainment and audio-video accessories such as speaker controllers, IR remote hubs, and set-top box front panels, the ATSAM3S1CA-AUR provides the 32-bit processing needed for protocol decoding and UI while its peripherals handle the interfaces. TWI (I2C) controls audio codecs and display drivers, SPI connects to external flash storing menu assets and IR code tables, and PWM generates dimmable LED status indication. The USB device port supports firmware update paths in retail products. Its 3.3V industrial-grade operation suits always-on accessories with modest standby requirements. With 64KB flash, protocol tables must be sized carefully, and the pin-compatible ATSAM3S2CA-AUR doubles the space on the same PCB footprint when feature sets grow.
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Portable Battery-Powered Devices
The ATSAM3S1CA-AUR supports handheld and portable equipment thanks to its wide 1.62V-3.6V supply range, which permits direct operation from a single Li-ion cell through a low-cost buck regulator or from 2-3 AA cells via an LDO. The Cortex-M3 supports low-power modes that gate the core clock while retaining SRAM, and wake-up on peripheral events allows the MCU to sleep between user interactions. The 12-bit ADC reads battery voltage and touchscreen or resistive key inputs, and the USB device port doubles as a charging-communication link. Designers should budget 16KB SRAM carefully for GUI buffers, or select the pin-compatible higher-memory SAM3S variants in the same 100-LQFP footprint for richer displays.
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추천 제품 요약
엔지니어링 참조 데이터: ATSAM3S1CA-AUR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAM3S2CA-AUR | ATSAM3S4CA-AUR | ATSAM3S8CA-AUR | ATSAM3S1CA-CUR |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-QFN (9x9) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Frequency | Cortex-M3 / 64 MHz | Cortex-M3 / 64 MHz | Cortex-M3 / 64 MHz | Cortex-M3 / 64 MHz | Cortex-M3 / 64 MHz |
| Flash Memory | 64 KB | 128 KB | 256 KB | 512 KB | 64 KB |
| SRAM | 16 KB | 16 KB | 32 KB | 128 KB | 16 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 |
| Drop-in on Same PCB | - | Yes - pin-to-pin | Yes - pin-to-pin | Yes - pin-to-pin | No - QFN footprint |
| USB Device Port | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) |
주요 차별점
- Lowest-cost entry point of the 100-LQFP SAM3S CA family (vs ATSAM3S4CA-AUR)
- Integrated USB 2.0 full-speed device at a commodity price (vs ATSAM3S1CA-CUR)
- Wide 1.62V-3.6V supply range (vs ATSAM3S8CA-AUR)
설계 노트
Power the ATSAM3S1CA-AUR from a regulated 3.3V rail within the 1.62V-3.6V datasheet range. Decouple every VDD/VDDIO pin pair with 100nF ceramic capacitors placed within 2mm of the pins, plus one bulk 4.7-10uF capacitor near the regulator. If USB is used, keep D+/D- trace lengths matched within a few millimeters and add ESD protection (e.g., USBLC6-2) at the connector. Power-up ordering between VDDCORE and VDDIO should follow the SAM3S datasheet power-supply section - the internal regulator handles core supply on this family, simplifying the external rail count.
Budget the 64KB flash and 16KB SRAM early. USB class stacks (CDC plus MSC combined), FreeRTOS, and protocol tables can exceed 64KB quickly; the standard mitigation is to migrate to ATSAM3S2CA/ATSAM3S4CA (128KB/256KB) which are pin-to-pin compatible on the same LQFP-100 footprint - design the PCB once for the largest variant you might need. Also, MSL and reel-quantity data were not confirmed in source listings for this page - verify moisture sensitivity level and bake requirements from the shipped part label before reflow.
The 100-pin LQFP (0.5mm pitch) requires solder-mask-defined pads of approximately 0.3mm width with a 1.6mm-length toe; follow the Microchip LQFP-100 land-pattern recommendation in the package outline drawing. Add SWD (SWDIO/SWCLK) and optionally JTAG test points on a 2.54mm or 1.27mm header for debugging with a SAM-ICE/J-Link probe - retrofitting debug access after layout is a common and costly mistake. Keep the 64 MHz source (crystal or internal RC) trace loop minimal and route high-current heater/motor PWM returns away from analog ADC inputs.
규정 준수 정보
Listed as GREEN IND TEMP MRL A (RoHS/lead-free/halogen-free grade) in Jotrin distributor data; REACH and conflict-minerals statements not confirmed in provided data.