CS82C88 - CMOS Bus Controller | Intersil | Legacy CPU
部品番号: CS82C88 ✗ 生産終了CS82C88 概要
A CMOS bus controller belongs to the broader logic IC and bus-interface hierarchy. It accepts command and status information from a host processor and produces coordinated control outputs used by memory, interrupt, and direct-memory-access subsystems. In systems using a CS82C88, precise control timing is essential because processors, memory modules, interrupt controllers, and DMA controllers must agree before data is transferred. The verified material specifically identifies the CS82C88 as a controller for multiple generations of Intel x86-compatible embedded processors.
Key documented features include CMOS construction and compatibility with the named 80C86-family processor families. The Scaled SAJI IV process is specifically cited in the available manufacturer-derived datasheet description. The 20-PLCC package preserves a compact, surface-mount footprint for industrial and legacy control systems, while its 9 mm by 9 mm dimensions make it suitable for densely populated processor boards. Exact timing, supply voltage, current, and temperature limits were not present in the supplied verified excerpts.
The CS82C88 integrates bus-command decoding and timing control around the host processor. This division of responsibility reduces the number of external discrete control circuits required for coordinated processor transactions. Because it is a legacy bus-control component, its application depends on matching the original processor family, bus architecture, signal levels, timing requirements, and package land pattern. Compatibility with a processor family does not by itself prove that every board revision can use a substitute.
Typical uses include industrial 8086-compatible controllers, embedded 80186/80188 systems, 8088 PC-compatible equipment, memory subsystems, interrupt-control assemblies, and DMA-based data-transfer systems. In each case, the controller coordinates commands from the processor with external bus devices. Replacement work should prioritize an exact pinout review, supply-voltage comparison, timing analysis, and board-level validation rather than selecting solely by processor-family name.
The primary design caution is to verify every electrical and timing limit against the original manufacturer datasheet before new production. The supplied search data confirms the device identity, function, supported processor families, process technology, package type, and package dimensions, but it does not provide sufficient values for output timing, supply range, or environmental limits. Designers should also inspect the complete 20-pin PLCC land pattern and pin orientation before assembly.
This page consolidates verified distributor identification, manufacturer-derived function and processor compatibility, package information, sourcing links, and explicit engineering gaps for the CS82C88. Those gaps are deliberately retained instead of estimated, making the page useful both for archival legacy-system identification and for disciplined replacement planning.
ドロップイン代替品: CS82C88 — 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CS82C88 最大定格＆電気的特性
| Product Type | CMOS Bus Controller |
| Supported Processor Families | 80C86, 80C88, 8086, 8088, 8089, 80186, and 80188 based systems |
| Manufacturing Process | Self-aligned silicon-gate CMOS, Scaled SAJI IV |
| Package Type | 20-PLCC |
| Package Dimensions | 9 mm x 9 mm |
| 実装タイプ | Surface mount |
| ピン数 | 20 pins |
| Logic Family | CMOS |
| Primary Function | Control and command timing for supported processor-based systems |
CS82C88 9 mm x 9 mm ピン配置ガイド
CS82C88 (9 mm x 9 mm 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: CS82C88.
詳細は データシート をご参照ください。
主な用途
CS82C88 の用途: 6 件s: Industrial 8086 Control Systems, 8088 Embedded Processor Boards, 80186 Embedded Control, 80188 Industrial Data Acquisition, Legacy Memory Subsystem Control, Interrupt and DMA Coordination.
Industrial 8086 Control Systems
The CS82C88 fits an industrial 8086-based controller because the verified datasheet description identifies 8086 systems among its supported processor bases. It provides coordinated control and command timing between the processor and associated memory, interrupt, and data-transfer hardware. The 20-PLCC package measures 9 mm by 9 mm according to the distributor listing. Because the supplied excerpts omit supply and timing values, an engineer must match the full manufacturer limits to the original processor bus before release.
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8088 Embedded Processor Boards
The CS82C88 is documented for 8088-based systems, making it relevant to legacy embedded boards that require dedicated bus-command coordination. Its role is to help the processor issue and acknowledge memory and peripheral transactions through correctly timed control signals. The verified information confirms a 20-PLCC package but does not provide operating voltage, propagation delay, or temperature limits, so board reuse must depend on a complete timing and pinout review.
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80186 Embedded Control
The Intersil CS82C88 explicitly supports 80186-based systems in the supplied manufacturer-derived description. It can serve as the bus-control element around compatible memory and peripheral subsystems, reducing the external control logic required around the processor. The package information is verified as 20-PLCC at 9 mm by 9 mm, but exact interface timing and electrical limits remain unavailable in the excerpts. Qualification therefore depends on the original system specification and full datasheet.
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80188 Industrial Data Acquisition
A legacy 80188 acquisition system can use the CS82C88 to coordinate processor commands with memory and data-transfer circuitry. Its verified support for 80188-based platforms is the decisive functional fit, while the compact 9 mm by 9 mm 20-PLCC package assists board replication. Engineers should still verify interrupt, DMA, memory-control, and processor timing behavior against the original schematic because those detailed electrical relationships are absent from the supplied search excerpts.
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Legacy Memory Subsystem Control
The CS82C88 belongs at the control boundary between a supported processor and external memory, generating the command and timing signals needed for organized bus transactions. This makes it useful when restoring or cloning older 8086, 8088, and 80186-family boards rather than redesigning around modern processors. The verified excerpts do not state memory-access timing or logic thresholds, so reuse requires waveform comparison and complete electrical validation on representative hardware.
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Interrupt and DMA Coordination
In a supported x86-compatible system, the CS82C88 can coordinate bus commands associated with interrupt and direct-memory-access activity, helping the processor and peripherals share address, data, and control paths. Its documented processor-family support includes 8089-based systems, where coordinated bus control is especially relevant. The available evidence does not identify individual pin functions or timing windows, so an implementation must use the complete manufacturer pinout and validate interrupt and DMA handshakes.
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おすすめ製品の概要
エンジニアリング参考データ: CS82C88 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
設計ノート
Do not infer CS82C88 replacement compatibility from the processor family alone. The supplied results establish support for 8086-family systems and a 20-PLCC package, but they do not provide a complete pinout, supply range, or timing table. Require the exact manufacturer datasheet and original schematic before treating any part as a substitute.
Confirm the physical 20-PLCC land pattern, orientation mark, pad dimensions, and pin-one location against the original board or package drawing. The verified distributor snippet establishes a 9 mm by 9 mm PLCC envelope but not land-pattern detail, so the fallback package diagram must not be used as fabrication data.
When restoring a legacy system, compare processor, memory, interrupt, and DMA control waveforms at the CS82C88 interface. Validate setup and hold timing under the intended bus load rather than relying on nominal processor-family labels. The supplied excerpts do not contain propagation-delay or logic-level values, so these tests are necessary before production reuse.
コンプライアンス情報
No explicit compliance declarations for the exact CS82C88, manufacturer, or lot were present in the supplied verified results. The aec_q100 field uses unknown because automotive qualification was not provided and applicability was not established.
