CS82C85 - 25MHz CMOS Clock Controller | Harris
부품 번호: CS82C85 ✗ 단종CS82C85 개요
A static clock controller is a specialized timing-control integrated circuit within the clock and timing hierarchy. It coordinates processor and bus timing signals rather than performing general data processing. The CS82C85 provides centralized generation and gating functions for systems built around static CMOS logic, reducing the need to distribute equivalent control circuitry across a motherboard.
The verified source data identifies four principal operating-mode functions: full speed, slow operation, stop-clock operation, and stop-oscillator operation. This mode control is central to coordinating system activity, power reduction, and restart behavior. The 25 MHz frequency indicates the associated clock-generator specification, while the detailed frequency tolerance, output waveform, supply voltage, and timing limits remain unavailable in the supplied records.
The CS82C85 is packaged as a 28-pin J-lead leaded chip carrier, designated 28-LCC in the DigiKey listing. Its legacy form factor is appropriate for industrial, embedded, and legacy computer-system maintenance rather than modern high-density surface-mount designs. The complete mechanical drawing and every pin function must be checked against the manufacturer datasheet before PCB or replacement work.
Typical uses include legacy static CMOS computer platforms, embedded processor subsystems, industrial controllers, and equipment requiring coordinated halt, slow-speed, and restart timing. In these systems, the controller can govern whether timing signals continue normally, are reduced, or are stopped while maintaining controlled operating-state transitions.
The main design consideration is verification rather than estimation. Engineers should confirm package pin compatibility, signal polarity, oscillator behavior, and timing requirements against the original system documentation. Because the supplied search results do not provide verified alternatives with the same footprint and pinout, any proposed replacement should be treated as unconfirmed until its manufacturer datasheet has been reviewed.
This page consolidates the verified distributor identity, package, frequency, operating-mode description, sourcing links, and engineering cautions. It distinguishes documented facts from missing electrical data and avoids presenting unverified replacement or timing claims as established specifications.
드롭인 대체품: CS82C85 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청CS82C85 사양
| Product Type | CMOS static clock controller/generator |
| Device Category | Clock generator IC |
| Manufacturer | Harris Corporation |
| Nominal Clock Frequency | 25 MHz |
| 출력 수 | 1 |
| Operating Mode | Full speed, slow, stop-clock, and stop-oscillator operation |
| Technology | Static CMOS |
| Package Type | 28-LCC |
| Lead Style | J-lead |
| 핀 수 | 28 pins |
| 실장 유형 | Through-hole leaded chip carrier |
| Static CMOS Compatibility | Designed for static CMOS system operating-mode control |
| RoHS 상태 | unknown |
| REACH Status | unknown |
| AEC-Q100 Status | unknown |
CS82C85 28-lcc 핀 구성 가이드
CS82C85(28-lcc 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: CS82C85.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
CS82C85 적합 용도: 6 애플리케이션s: Legacy Static CMOS Computer Systems, Industrial Embedded Controller Maintenance, Embedded Processor SubSystems, Computer Bus Timing Coordination, Legacy Test and Measurement Equipment, Controlled Low-Power System States.
Legacy Static CMOS Computer Systems
The CS82C85 fits legacy static CMOS computer systems that require centralized coordination of full-speed, slow, stop-clock, and stop-oscillator modes. Its listed 25 MHz clock-generator specification and one output provide a defined timing-control role for processors, memory, and bus coordination. The main benefit is architectural continuity with equipment designed around this controller rather than retrofitting a newer timing scheme. Exact processor, memory, and bus requirements must be verified from system documentation.
Industrial Embedded Controller Maintenance
The CS82C85 is appropriate for maintenance of older industrial embedded controllers that depend on a static CMOS clock-control subsystem. Its four documented operating modes allow a system to move among full-speed execution, reduced-speed operation, clock stopping, and oscillator shutdown under control. This mode support can simplify recovery and power-management behavior in established machinery. Engineers should first confirm signal polarity, timing relationships, and package geometry against the original controller schematic.
Embedded Processor SubSystems
The CS82C85 can support an embedded processor subsystem whose timing depends on a dedicated static CMOS controller and generator. The verified 25 MHz frequency, single-output description, and mode-control functions make it relevant to systems coordinating processor and bus activity through centralized timing commands. Because no verified voltage range or timing table is supplied, suitability depends on matching the original subsystem specification and validating waveforms at every required operating state.
Computer Bus Timing Coordination
The CS82C85 is applicable where a legacy computer design must coordinate system-wide timing transitions rather than simply distribute a free-running clock. Full-speed and slow modes support different activity levels, while stop-clock and stop-oscillator states provide controlled cessation paths. This behavior is useful in equipment requiring orderly transition into reduced activity. Bus timing margins and control-signal polarity remain unverified in the supplied records and require schematic-level confirmation.
Legacy Test and Measurement Equipment
The CS82C85 may be used in legacy test and measurement equipment that includes a static CMOS timing-control subsystem. Its documented operating-mode flexibility supports coordinated normal, slow, and stopped operation while the listed 25 MHz specification identifies the device as a clock-generator IC. The 28-LCC J-lead format favors preservation of existing boards rather than new compact designs. Technicians should verify component condition, pinout, and timing before replacement.
Controlled Low-Power System States
The CS82C85 supports controlled low-power states through its stop-clock and stop-oscillator modes, alongside full-speed and slow operation. This combination is relevant to legacy equipment that needs explicit modes for normal work, reduced activity, and shutdown. Proper implementation depends on correct control sequencing and the manufacturer timing diagrams, neither of which is included in the verified search record. Avoid inferring transition delays or power savings without the datasheet.
엔지니어링 참조 데이터: CS82C85 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
설계 노트
Do not substitute the CS82C85 solely because another device carries an 82C85-family number. The verified record establishes a 28-LCC J-lead package, 25 MHz nominal frequency, one output, and four system-control modes, but it does not establish pinout or timing equivalence for generic alternatives. Review the original schematic and manufacturer pin assignment, then verify control polarity and transition timing before approving a replacement.
Preserve the original board-level clock and control routing wherever practical. The CS82C85 coordinates system operating modes, so traces associated with clock stop, oscillator stop, slow operation, and full-speed operation should be checked for excessive loading or unintended coupling. The supplied data does not identify exact signal names or timing constraints; therefore, use the complete manufacturer pinout and schematic before changing trace geometry or adding circuitry.
Validate every operating state before returning equipment to service. The CS82C85 provides separate concepts for full-speed, slow, stop-clock, and stop-oscillator operation, so each mode should be checked for valid output behavior, stable control sequencing, and correct restart. Supply-voltage limits and transition timing are unavailable in the verified data and must be taken directly from the Intersil manufacturer datasheet.
규정 준수 정보
No verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements were supplied.
