AT91SAM7X512B-AU - 512KB Flash ARM7 MCU w/ Ethernet | Microchip
부품 번호: AT91SAM7X512B-AU ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $17.5 | $17.50 |
| 10 | $15.75 | $157.50 |
| 100 | $13.4 | $1,340.00 |
| 500 | $11.95 | $5,975.00 |
| 1,000 | $10.8 | $10,800.00 |
AT91SAM7X512B-AU 개요
드롭인 대체품: AT91SAM7X512B-AU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: AT91SAM7X512B-AU (동일 폼 팩터 및 풋프린트) — 차이점: CAN, Ethernet, Package, RoHS Status.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
AT91SAM7XC512B-AU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AT91SAM7X512B-AUR
✅ 드롭인✓ 재고 있음
$9.74 / 개
데이터시트 보기 →AT91SAM7X512-CU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AT91SAM7X512B-CU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AT91SAM7X256B-AU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AT91SAM7A3-AU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AT91SAM7X512B-AU 최대 정격 & 전기적 특성
| Core Architecture | ARM7TDMI 32-bit RISC |
| Operating Frequency | 55 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 128 KB |
| Operating Voltage | 1.8 V (core) / 3.3 V (I/O), single 3.3 V supply typical |
| 패키지 | 100-LQFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| Ethernet | 10/100 Mbps MAC (MII/RMII) integrated |
| USB | USB 2.0 Full-Speed Device |
| CAN | CAN 2.0A/B |
| PWM Channels | 4 (per distributor listing) |
| 동작 온도 | -40 C to +85 C (industrial) |
| RoHS 상태 | Compliant (Green, MS-026) |
AT91SAM7X512B-AU 100-lqfp (14x14 mm) 핀 구성 가이드
AT91SAM7X512B-AU(100-lqfp (14x14 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: AT91SAM7X512B-AU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
AT91SAM7X512B-AU 적합 용도: 6 애플리케이션s: Industrial Ethernet Sensor Hubs, USB Device Peripherals (HID, CDC, DFU), CAN-Based Automotive Body Electronics, Point-of-Sale Terminals and Payment Peripherals, Building Automation Controllers, Embedded Web Servers and IoT Edge Gateways.
Industrial Ethernet Sensor Hubs
The AT91SAM7X512B-AU's integrated 10/100 Ethernet MAC with MII/RMII and 512 KB Flash fits industrial sensor aggregation nodes that stream MODBUS/TCP or EtherNet/IP packets to a PLC. Its hardware DMA offloads TCP/IP processing from the ARM7TDMI core, freeing CPU bandwidth for sensor polling. With 128 KB SRAM it can host a lightweight lwIP stack without external memory. Operating temperature of -40 C to +85 C supports cabinet-mounted industrial deployment.
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USB Device Peripherals (HID, CDC, DFU)
The integrated USB 2.0 Full-Speed device port on the AT91SAM7X512B-AU enables USB HID, CDC, or DFU peripherals without an external bridge IC. The 55 MHz ARM7TDMC core runs the Atmel USB device stack comfortably with 512 KB Flash for class descriptors. Bus-powered designs benefit from the MCU's low suspend current. Drop-in compatibility with the AT91SAM7XC512B-AU adds hardware crypto for secure DFU updates.
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CAN-Based Automotive Body Electronics
The AT91SAM7X512B-AU integrates a CAN 2.0A/B controller alongside its Ethernet and USB, making it suitable for non-safety automotive body modules (window controllers, seat controllers, HVAC panels). 512 KB Flash supports AUTOSAR-like lightweight stacks. While not AEC-Q100 qualified, it is widely used in non-critical 12 V body networks where cost dominates over functional safety certification.
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Point-of-Sale Terminals and Payment Peripherals
The AT91SAM7X512B-AU combines Ethernet for back-office connectivity, USB for PIN pad or NFC peripherals, and 512 KB Flash for firmware and crypto libraries in POS terminals. Drop-in compatibility with the AT91SAM7XC512B-AU adds AES/TDES hardware acceleration, supporting PCI-PTS payment terminal encryption requirements without changing the PCB. Industrial -40 C to +85 C temperature range covers retail and warehouse environments.
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Building Automation Controllers
Building automation controllers benefit from the AT91SAM7X512B-AU's combined Ethernet, CAN, and USB interfaces, supporting BACnet/IP, KNX, or proprietary fieldbuses over the same MCU. The 128 KB SRAM accommodates BACnet stack buffers and scheduling tables. The 100-LQFP package and 3.3 V single-supply operation simplify DIN-rail module PCB design.
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Embedded Web Servers and IoT Edge Gateways
The AT91SAM7X512B-AU's Ethernet MAC plus 512 KB Flash can host an embedded HTTP server (e.g., GoAhead, uIP-httpd) for equipment configuration portals or simple telemetry push. The 128 KB SRAM serves as buffer for HTTP request parsing and JSON encoding. Designers often choose this part for industrial gateways that bridge Modbus RTU/TCP and REST APIs without the overhead of Cortex-M class parts.
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추천 제품 요약
엔지니어링 참조 데이터: AT91SAM7X512B-AU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | AT91SAM7XC512B-AU | AT91SAM7X512B-AUR | AT91SAM7X512-CU | AT91SAM7X256B-AU | AT91SAM7A3-AU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP - same | 100-LQFP - same | 100-LQFP - same |
| Core | ARM7TDMI 32-bit, 55 MHz | ARM7TDMI 32-bit, 55 MHz | ARM7TDMI 32-bit, 55 MHz | ARM7TDMI 32-bit, 55 MHz | ARM7TDMI 32-bit, 55 MHz | ARM7TDMI 32-bit, 60 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 256 KB (-50%) |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 32 KB (-75%) |
| Ethernet | 10/100 MAC (MII/RMII) | 10/100 MAC (MII/RMII) | 10/100 MAC (MII/RMII) | 10/100 MAC (MII/RMII) | 10/100 MAC (MII/RMII) | None (different peripheral set) |
| USB | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device |
| Hardware Crypto | None | AES + TDES hardware accelerators | None | None | None | None |
| Lifecycle Status | NRND (legacy) | Active | NRND | Obsolete (pre-revision) | NRND | NRND |
주요 차별점
- Hardware AES/TDES crypto accelerators in same footprint (vs AT91SAM7X512-AU (pre-revision))
- Integrated 10/100 Ethernet MAC (vs AT91SAM7A3-AU)
- Doubled Flash versus the 256 KB sibling (vs AT91SAM7X256B-AU)
설계 노트
Estimated: The AT91SAM7X512B-AU requires a clean 3.3 V supply for I/O and an internal 1.8 V regulator for the core. Place a 10 uF bulk tantalum plus a 100 nF ceramic decoupling capacitor as close as possible to VDDCORE and VDDIO pins. Use a ferrite bead or pi-filter between the 3.3 V analog supply (VDDANA) and digital 3.3 V to reduce Ethernet PHY-induced noise coupling into the ADC reference. Brown-out detection must remain enabled in the SUPC register to prevent Flash corruption during power-down events.
Route the Ethernet MII/RMII signals as a matched-length bus (50 ohm controlled impedance) and keep the PHY clock trace within 25 mm of the AT91SAM7X512B-AU's EMDC pin. Place the 50 MHz external PHY reference crystal no more than 5 mm from the PHY's XIN/XOUT pins with a guard ring tied to analog ground. The USB DP/DN pair must be 90 ohm differential with no stubs; keep series ferrite beads within 4 mm of the connector.
Do not confuse the AT91SAM7X512-AU (original silicon, has errata) with the AT91SAM7X512B-AU (revised silicon). Microchip's AT91SAM7X-to-AT91SAM7XC migration guide documents that the AT91SAM7X family is NOT RECOMMENDED for new designs; for new designs choose the AT91SAM7XC512B-AU (same 100-LQFP, adds hardware crypto) or migrate to the ATSAM4S16CA-AU Cortex-M4 part. Always verify the JTAG ICE port pinout against the SAM-ICE or J-Link adapter documentation to avoid damaging the ERASE pin (NRSTB).
규정 준수 정보
RoHS compliant per DigiKey/Mouser product listings (Green, MS-026 marking). Not AEC-Q100 qualified; this is a commercial/industrial MCU. Reach and conflict-mineral compliance per Microchip's standard policy.
