MC68A02CL Clocked Microprocessor | Rochester Electronics
部品番号: MC68A02CL ✗ 生産終了MC68A02CL 概要
A microprocessor is the central execution element of an embedded computer system. It fetches instructions, decodes operations, updates registers and memory, and coordinates peripheral devices through address and data buses. The MC68A02 belongs to the Motorola 68A02 microprocessor lineage, an early 8-bit embedded-processing architecture historically used in industrial controllers, communications equipment, and custom systems. Its integrated clock and optional RAM distinguish this CL-coded configuration from related package or option variants.
The principal verified feature set is concise: the MC68A02CL includes a clock, supports optional RAM, and is categorized by Rochester Electronics as a processor and peripheral device. Distributor records classify it as a microprocessor IC, while Rochester describes it more specifically as an MC68A02 microprocessor with clock and optional RAM. The CL ordering code therefore identifies the exact configuration, but it should not be treated as a complete electrical substitute specification without the original data sheet.
Legacy 68A02 systems require careful architecture-specific verification. Bus timing, memory mapping, interrupt behavior, peripheral interfacing, and clock assumptions are determined by the original processor documentation and the surrounding board design. Because the provided search records do not include the complete pinout, clock frequency, address width, data-bus width, or voltage limits, engineers should preserve the original MC68A02CL footprint and consult archived Motorola documentation before selecting another device.
Typical applications include industrial automation controllers, embedded communications equipment, legacy test systems, and repair or sustainment of equipment built around the Motorola 6800-family architecture. For new designs, a currently supported microcontroller may offer better tooling, integration, and availability. For existing products, however, maintaining the documented MC68A02CL configuration can reduce PCB, firmware, and validation risk when the original system is already field deployed.
The primary design concern is data authenticity because the available records expose commercial information but not a complete manufacturer data sheet. Confirm the package, pin assignments, clock requirement, bus interface, memory architecture, supply rails, and timing margins against an archival source before layout changes or substitutions. Do not infer these values from the MC68A02 family name alone.
This page combines verified distributor availability, quoted pricing, product classification, and practical legacy-component guidance with the Rochester Electronics source record. It also distinguishes confirmed facts from missing technical parameters, helping engineers assess procurement risk while avoiding unsupported claims about clock rate, pinout, memory capacity, or electrical limits.
ドロップイン代替品: MC68A02CL — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストMC68A02CL 最大定格＆電気的特性
| Device Type | Microprocessor IC |
| Processor Family | MC68A02 |
| Integrated Clock | Yes |
| Optional RAM | Supported configuration |
| RoHS ステータス | ROHS indicated by LCSC product listing |
| Distributor Offer Count | 2 distributors |
MC68A02CL standard ピン配置ガイド
MC68A02CL (standard パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: MC68A02CL.
詳細は データシート をご参照ください。
主な用途
MC68A02CL の用途: 6 件s: Legacy Industrial Automation Controllers, Embedded Communications Equipment, Legacy Test and Measurement Equipment, Embedded System Repair and Obsolescence Management, Custom Embedded Control Products, Legacy Equipment Production Continuations.
Legacy Industrial Automation Controllers
The MC68A02CL is appropriate for repairing or extending an existing MC68A02-based industrial controller because it preserves the documented clocked processor configuration and optional RAM support. It can occupy the established processor position in a controller that coordinates sensors, relays, actuators, and human-interface circuits. This use is primarily sustainment-oriented because the verified records provide no current clock-rate, electrical-limit, or development-tool details. Engineers should retain the original memory map, bus timing, interrupt structure, and circuit implementation, and obtain the archival Motorola data sheet before modifying the board. The key procurement consideration is long-term availability: Rochester Electronics lists the part at $149.55 as of 2026-10-28, but no guaranteed production lead time is published.
おすすめ
Embedded Communications Equipment
The MC68A02CL can support an existing communications appliance built around the Motorola MC68A02 architecture, where the processor executes protocol handling and coordinates memory and peripheral interfaces. Its integrated clock and optional RAM make it directly relevant to systems designed for the CL configuration. The verified Rochester Electronics description supports that architecture-level use, but it does not provide baud-rate-related timing, bus bandwidth, memory size, or supply specifications. For a repair, the safest approach is to preserve the original processor, clock configuration, memory arrangement, and firmware timing. For a redesign, evaluate a supported communications microcontroller instead because no verified modern pin-compatible equivalent or current toolchain support is listed as of 2026-10-28.
おすすめ
Legacy Test and Measurement Equipment
The MC68A02CL is a practical sustainment choice for test equipment that originally used an MC68A02 processor to sequence measurements, process results, and operate front-panel controls. Retaining the documented processor can avoid changes to the address decoder, memory organization, interrupt handling, and timing-sensitive acquisition interface. The verified source identifies the device as a microprocessor with clock and optional RAM, making it a reasonable match for an original CL-configured design. However, the supplied records do not document clock accuracy, operating temperature, bus timing, or analog-interface characteristics, none of which may be inferred from the processor designation. Procurement should therefore pair the $149.55 Rochester quote with a request for the original data sheet, lifecycle statement, and long-term availability commitment.
おすすめ
Embedded System Repair and Obsolescence Management
The MC68A02CL is suited to repair and obsolescence-management programs for equipment that cannot tolerate a board redesign. Matching the original ordering code preserves the known clocked configuration and optional RAM architecture, reducing the risk of software or timing changes associated with a cross-family processor. Rochester Electronics is explicitly the source of the verified listing, which is useful when traceability is required for long-lived industrial equipment. The available records show distributor and marketplace channels, including a $149.55 Rochester quote and a US$154.1512 LCSC listing as of 2026-10-28. Nevertheless, no guaranteed lead time or approved alternate is established. A controlled replacement plan should include incoming inspection, original-document verification, firmware regression testing, and configuration control for every substituted component.
おすすめ
Custom Embedded Control Products
The MC68A02CL can serve as the processor in a custom embedded-control product when the system architecture is explicitly based on the MC68A02 and its clocked CL configuration. Suitable functions include sequencing, simple control logic, data collection, and peripheral coordination. Because the verified records do not disclose the processor's clock frequency, address width, data width, memory capacity, or supply voltage, this application requires full technical confirmation before schematic design. Engineers should not choose the part merely from the 68A02 family name or marketplace classification. A sound design process includes obtaining the original Motorola documentation, validating memory and peripheral timing, checking electrical margins, and testing the assembled board across its expected environment. For new platforms without legacy firmware constraints, a currently supported microcontroller may be more practical.
おすすめ
Legacy Equipment Production Continuations
The MC68A02CL is relevant to production continuations for manufacturers that must build a remaining quantity of an MC68A02-based product after its original production channel has closed. Using the exact Rochester Electronics part preserves traceability and avoids introducing an unverified processor into an established design. The verified listings indicate availability through Rochester Electronics, DigiKey, LCSC, JLCPCB, and several specialist suppliers, which provides multiple sourcing channels. Nevertheless, the records do not state batch traceability, date code, date-code consistency, or guaranteed forecast. Procurement should request lot information, a certificate of conformance, and written lifecycle support. Engineering should freeze the approved bill of materials and avoid accepting an unverified MC68A02-family substitute because the supplied cross-reference results contain no confirmed pin-to-pin replacement.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC68A02CL — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Brand | Rochester Electronics, LLC |
| Processor Family | MC68A02 |
| Integrated Clock | Yes |
| Optional RAM | Supported |
| Quoted Unit Price | $149.55 at Rochester Electronics as of 2026-10-28 |
| RoHS | RoHS indicated by LCSC listing |
主な差別化要因
- Exact Rochester-sourced CL configuration （vs AMD Z8002PC)
- Verified configuration-specific description （vs Generic MC68A02 substitute)
- Multiple sourcing channels for legacy procurement （vs Single-source legacy procurement)
設計ノート
Do not treat an MC68A02 family relationship as proof of electrical or pin compatibility. The verified record confirms the integrated clock and optional RAM features but does not provide package, pin count, bus timing, memory size, clock frequency, or supply limits. Obtain the original MC68A02CL manufacturer documentation and compare every connection and timing parameter before approving any substitute. The generic cross-reference results and the Z8002PC comparison listing do not establish drop-in equivalence.
Preserve the original processor footprint, clock arrangement, bus interface, memory topology, and decoupling strategy during repair or continuation builds. Since the package and pinout are absent from the supplied data, do not create a new layout from family conventions or package images. Photograph and document the original board, verify continuity and signal states in-circuit, and use the archival manufacturer pinout before ordering replacement printed-circuit boards.
Validate the original supply-voltage range, clock amplitude, and power sequencing before energizing a legacy MC68A02CL board. The verified records do not include electrical maximums or recommended operating conditions, so a modern substitute rail cannot be assumed safe. Compare the original schematic and data sheet with measurements from a known-good unit, and keep the regulator startup and clock conditions within the documented limits before considering the processor operational.
The $149.55 Rochester price and US$154.1512 LCSC price are marketplace observations as of 2026-10-28, not a guaranteed quantity schedule or long-term availability commitment. Record the source, date, lot information, and counterfeit-control requirements in the procurement plan. Request a formal quotation, date-code statement, certificate of conformance, and lifecycle commitment before using the component in a safety- or mission-critical production run.
コンプライアンス情報
The LCSC product listing indicates RoHS compliance. No verified RoHS declaration, REACH information, lead-free statement, halogen-free statement, or conflict-minerals documentation was supplied.