MC908JL3ECDWE - 8-Bit 8MHz 4KB MCU | NXP | 28-SOIC
부품 번호: MC908JL3ECDWE ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.0657 | $6.07 |
| 10 | $6.0657 | $60.66 |
| 100 | $6.0657 | $606.57 |
| 500 | $6.0657 | $3,032.85 |
| 1,000 | $6.0657 | $6,065.70 |
MC908JL3ECDWE 개요
An MCU is a semiconductor that integrates a processor core, program memory, data memory, and peripherals into one device. A microcontroller is therefore more specific than a general-purpose microprocessor: the embedded system can execute firmware and control I/O without requiring a separate external memory device. In the M68HC08 hierarchy, this device is an 8-bit MCU using the CPU08 central processing unit.
Verified distributor information identifies the MC908JL3ECDWE as an HC08 device with 8-bit architecture, 8 MHz operation, and 4 KB, or 4K by 8, Flash memory. Its 28-SOIC package supports surface mounting on existing legacy boards. The listed 3.3 V and 5 V compatibility is useful when servicing equipment designed around either supply level. Exact RAM, peripheral, electrical-limit, and temperature-range values were not supplied in the verified search data and therefore remain marked for data confirmation.
Typical uses for this class of controller include appliance controls, industrial equipment, instrumentation, simple motor-control nodes, and legacy embedded systems. Before substituting any MPN, engineers should compare the complete pinout, memory map, clock behavior, interrupt vector table, peripherals, electrical limits, and firmware compatibility. A matching package alone does not guarantee a functional drop-in replacement.
For a new design, prioritize an NXP part that NXP currently recommends for new designs. For an existing board, preservation of the original part number is preferable because changing instruction sets, peripherals, pin multiplexing, or memory organization can require firmware and hardware changes. The SOIC footprint is also larger than many current MCU packages, although that difference may be irrelevant when repairing an existing PCB.
드롭인 대체품: MC908JL3ECDWE — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MC908JL3ECDWE (동일 폼 팩터 및 풋프린트) — 차이점: Package, Program Memory Size, Core, Core Architecture, Lifecycle Status.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청MC908JL3ECDWE 최대 정격 & 전기적 특성
| Product Type | 8-bit microcontroller unit (MCU) |
| Architecture | 8-bit HC08 CISC |
| CPU | M68HC08 CPU08 core |
| 최대 클록 주파수 | 8 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Program Memory Type | Flash |
| Supply Compatibility | 3.3 V and 5 V |
| 패키지 | 28-pin SOIC wide |
| 실장 유형 | Surface mount |
| Series | MC908 |
| Microcontroller Family | M68HC08 |
| 수명 주기 상태 | Obsolete |
| Lead-Free Status | PB-free finished goods |
| Program Memory Words | 4096 x 8 bits |
| Maximum Pin Count | 28 pins |
MC908JL3ECDWE 28-pin soic wide 핀 구성 가이드
MC908JL3ECDWE(28-pin soic wide 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: MC908JL3ECDWE.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MC908JL3ECDWE 적합 용도: 6 애플리케이션s: Legacy Appliance Control, Industrial Instrumentation Repair, Simple Motor-Control Node, Embedded Data Acquisition, IoT Sensor Gateway Retrofit, Educational Electronics Platform.
Legacy Appliance Control
The MC908JL3ECDWE fits maintenance of an appliance controller that was designed around the 8-bit M68HC08 family, an 8 MHz operating point, and 4 KB of Flash. Its 28-SOIC package allows reuse of the original board footprint when components have been removed. The verified 3.3 V and 5 V compatibility can simplify inspection across related equipment revisions. Because the MCU is obsolete, engineers should prefer an exact original part, verify its date code, and preserve the existing firmware rather than assuming that a family variant is interchangeable.
추천
Industrial Instrumentation Repair
The 8-bit CPU08 architecture and 4 KB program memory make the MC908JL3ECDWE relevant to legacy instruments that perform compact sequencing, measurement conditioning, status reporting, or actuator control. An 8 MHz clock supports the original product's control tasks, while the 28-SOIC package preserves established routing. For maintenance, first confirm the exact MCU marking and compare reset and peripheral connections. A newer controller should be selected for long-term availability when a redesign is acceptable, with firmware and board validation planned in parallel.
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Simple Motor-Control Node
The MC908JL3ECDWE can be retained in a legacy low-speed motor-control or sequencing node when the existing firmware already matches its CPU08 core, 4 KB Flash, and peripheral configuration. Its 8 MHz operation and surface-mount 28-SOIC construction suit compact control boards built around the original design. Supply voltage must match the supported 3.3 V or 5 V equipment architecture. Do not substitute solely by family name, because timer channels, pin multiplexing, edge behavior, and drive timing must remain compatible with the existing firmware and power stage.
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Embedded Data Acquisition
The MC908JL3ECDWE can support a legacy acquisition controller when it performs sensor selection, digital filtering, status logging, and communication through already verified board peripherals. Its 4 KB Flash constrains firmware size, while the 8 MHz HC08 core matches the processing assumptions of the original product. For an operating instrument, exact-part preservation reduces the chance of introducing sampling or timing changes. Confirm sensor interfaces, serial baud-rate support, ADC resources, and calibration routines from the complete manufacturer documentation before installation.
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IoT Sensor Gateway Retrofit
The MC908JL3ECDWE may serve in a brownfield IoT retrofit where an existing 28-SOIC controller board reads local sensors and drives indicators or relays. The verified 8 MHz HC08 performance and 4 KB Flash are suitable only when the current firmware already fits that resource envelope. Compatibility with 3.3 V and 5 V helps during mixed-generation repairs. For connected equipment, cybersecurity and long-term supply constraints favor a supported MCU unless preserving the old controller is essential; any communication implementation should be audited before field deployment.
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Educational Electronics Platform
The MC908JL3ECDWE remains useful for training an existing HC08 laboratory board because students can preserve the original CPU08 firmware, 28-SOIC footprint, and 8 MHz operating assumptions. It provides a concrete platform for studying an 8-bit CISC microcontroller, embedded memory, reset behavior, interrupts, and peripheral control. Because the part is obsolete, schools should inventory test samples and plan a planned migration before acquiring large quantities. Replacement boards should use a supported MCU and updated teaching material rather than treating unrelated HC08 models as pin-compatible.
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추천 제품 요약
엔지니어링 참조 데이터: MC908JL3ECDWE — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
주요 차별점
- Original CPU08 architecture and memory configuration (vs MC908JL3EMDWE)
- Exact-part maintenance support (vs MC908JK8CDWE)
- Known supply-voltage compatibility (vs MC908JK1ECDWER)
설계 노트
Do not infer pin compatibility from an HC08 family name. Confirm the exact package suffix, all 28 pin assignments, programming signals, reset behavior, clock pins, and alternate peripheral functions against the manufacturer data sheet. Several related MC908 identifiers appeared in the supplied search results, but no candidate was proven to be a drop-in replacement. For maintenance, use the original MPN whenever possible and verify the device marking, pin count, and supply requirements before soldering.
Identify whether the target board uses 3.3 V or 5 V before replacing the MCU. Both levels are mentioned in the verified source snippets, but maximum voltage, current, and detailed operating limits are not supplied. Check the board's regulator ratings, decoupling, reset pull-up, and programming-interface voltage. Misconnecting VDD or exposing an unsupported input voltage can permanently damage an obsolete replacement that may be difficult to source.
Preserve the original 28-SOIC land pattern and verify the package variant is the wide-body form associated with the target board. Inspect whether any replacement candidate has different terminal width, lead pitch, pin numbering, or exposed thermal features; the supplied evidence does not establish such compatibility. Clean pad oxidation, use appropriate lead-free rework profiles, and inspect the underside for bridging after reflow because adjacent 28-pin pads can short if solder bridges are not removed.
규정 준수 정보
Mouser identifies the part as PB-free finished goods. Explicit RoHS, REACH, halogen-free, and conflict-minerals statements were not present in the supplied verified data.
