MK2308G-1H - 133MHz 1:8 Zero Delay Buffer | Renesas
部品番号: MK2308G-1H ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MK2308G-1H 概要
A zero-delay buffer is a clock and timing IC that compensates propagation delay introduced by clock distribution networks while distributing a single reference to multiple loads. It belongs to the broader hierarchy of clock buffers, clock distribution circuits, phase-locked-loop timing devices, and clock and timing integrated circuits. Its principal purpose is to provide multiple low-skew clock outputs to processors, memory interfaces, communications equipment, and other digital systems that require synchronized logic.
The verified data identifies the MK2308G-1H as a zero-delay buffer IC with a maximum frequency of 133 MHz, one circuit, a 1:8 ratio, PLL functionality with bypass, clock input, and CMOS output. A distributor listing identifies the physical package as 16-TSSOP with a stated body width of 4.40 mm. The device can also drive its outputs in tri-state or stop them at a low level, useful for shared-bus and test-control architectures.
Its PLL-based architecture is intended for low-skew output generation at 3.3 V. The bypass path allows the input clock to be observed without PLL multiplication or correction, which can simplify diagnostic and test setups. The output count enables one reference clock to feed eight destinations without replicating the clock source eight times, reducing routing complexity and helping maintain consistent timing across a board.
Typical applications include processor clock distribution, memory clock fanout, communications infrastructure, test-and-measurement equipment, and digital systems requiring multiple synchronized outputs. When implementing the circuit, use the manufacturer-recommended decoupling capacitors and place them close to the power and ground pins. The Renesas MK2308-1H datasheet search result specifies 0.01 mF capacitors between VDD and GND at the stated power-pin pairs.
This product page synthesizes the verified distributor specifications, manufacturer datasheet link, package information, and practical implementation guidance. Because the supplied source snippets do not expose complete electrical limit tables or a complete verified pin map, unspecified values are marked as rather than inferred.
ドロップイン代替品: MK2308G-1H — 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。
クイック比較ツール — 並列比較する代替部品を選択:
MK2308-1H
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MK2308G-1H 仕様
| Device Type | Zero Delay Buffer IC |
| Maximum Frequency | 133 MHz |
| Input Clock | Clock input |
| 出力タイプ | CMOS |
| Input-to-Output Ratio | 1:8 |
| Number of Circuits | 1 |
| PLL | Yes, with bypass |
| 出力構成 | Eight low-skew outputs |
| Output Control | Tri-state or low-level stop |
| Operating Supply | 3.3 V |
| パッケージ | 16-TSSOP |
| Package Width | 4.40 mm |
| 実装タイプ | Surface Mount |
| External Decoupling | 0.01 mF capacitors between VDD and GND at specified pins |
MK2308G-1H 4.40 mm ピン配置ガイド
MK2308G-1H (4.40 mm パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: MK2308G-1H.
詳細は データシート をご参照ください。
主な用途
MK2308G-1H の用途: 6 件s: Processor Clock Distribution, Communications Equipment Clocking, Memory and Interface Fanout, Test and Measurement Equipment, Industrial Digital Control Systems, Data Acquisition and Conversion Systems.
Processor Clock Distribution
The MK2308G-1H fits processor-clock fanout because it accepts one clock input and provides eight low-skew outputs at up to 133 MHz. Place the device close to the clock source and route matched traces toward the receiving logic so that the one-to-eight distribution preserves timing balance. The PLL path supports zero-delay clock generation, while bypass mode provides a direct-input diagnostic path. The verified source identifies 3.3 V operation, CMOS outputs, and 1:8 distribution. Actual processor timing margin must still be checked against the complete Renesas timing tables.
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Communications Equipment Clocking
The MK2308G-1H is useful in communications equipment that needs one reference clock distributed to several digital blocks. Its eight outputs reduce the number of separate clock-source arrangements, while the 133 MHz ceiling covers common control and interface clocking requirements. The CMOS output format and selectable PLL or direct-input modes support both normal operation and bench diagnostics. Designers should verify board-level skew, loading, jitter, and edge-rate requirements because those values are not included in the supplied search excerpts.
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Memory and Interface Fanout
The MK2308G-1H can distribute a common clock to memory or peripheral interface blocks because it provides eight outputs from one input and supports zero-delay PLL operation. This architecture helps keep related digital interfaces on a common timing reference without duplicating oscillator or buffer circuitry. The 16-TSSOP package supports compact surface-mount layouts, but signal integrity depends on trace length matching, controlled loading, and proper decoupling. The verified datasheet search result calls for 0.01 mF capacitors near the specified VDD and GND pin pairs.
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Test and Measurement Equipment
The MK2308G-1H is appropriate for test and measurement clock trees where one input must fan out to multiple instruments, counters, or acquisition sections. PLL bypass is particularly useful when a direct representation of the source clock is needed during diagnosis, while PLL mode supports low-skew distribution in the operating configuration. The verified data confirms 133 MHz maximum operation, eight outputs, CMOS signaling, and tri-state or low-level output control. Engineers should verify output rise/fall time and jitter against their instrument requirements.
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Industrial Digital Control Systems
The MK2308G-1H can support industrial digital control systems that distribute a shared clock to processors, counters, communication interfaces, and timing-sensitive peripherals. Its 3.3 V CMOS operation and eight-output architecture provide a compact way to organize a multi-load clock domain. The part’s PLL bypass mode gives maintenance personnel a way to compare distributed clocking with the direct input path. Industrial temperature, EMC, and reliability requirements must be confirmed separately because those ratings are not included in the supplied excerpts.
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Data Acquisition and Conversion Systems
The MK2308G-1H is suitable for clock organization in data-acquisition and conversion systems where multiple digital sections must operate from a common reference. The 1:8 ratio and eight low-skew outputs make it possible to feed converter-control, interface, and processing blocks from one source. PLL mode can provide low-skew distribution, while bypass mode supports controlled test access to the source clock. The supplied information does not state ADC settling requirements or clock-jitter limits, so those must be checked in the system-level timing budget.
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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: MK2308G-1H — 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 | MK2308-1H |
|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics |
| Package | 16-TSSOP | 16-TSSOP |
| Device Type | Zero Delay Buffer IC | Zero Delay Buffer / PLL timing IC |
主な差別化要因
- Eight-output clock fanout （vs MK2308-1H)
- PLL bypass capability （vs MK2308-1H)
- 133 MHz operation （vs MK2308-1H)
設計ノート
Place the manufacturer-recommended 0.01 mF decoupling capacitors as close as practical to the specified VDD and GND pin pairs. The verified Renesas result identifies connections at pins 4 and 5 and pins 13 and 12. Keep the return path short and use a ground plane with low-impedance connection to the device; do not substitute a distant bulk capacitor for the required local bypass.
Route the input and eight output clock traces as a controlled fanout network. Match trace geometry and termination strategy to the intended clock rate, and keep the clock path away from high-current switching nodes. Because the supplied excerpts do not provide complete rise-time, skew, or load tables, use the full manufacturer timing data before finalizing trace lengths and impedance.
Do not assume that every electrically similar clock buffer is a drop-in replacement. A valid substitute must match the 16-TSSOP footprint, pin assignment, supply voltage, output count, CMOS interface, PLL bypass behavior, and required timing limits. The supplied cross-reference results do not confirm a replacement, so verify the manufacturer datasheet and perform a prototype timing test before substituting another part.
コンプライアンス情報
Compliance information was not present in the verified manufacturer or distributor snippets. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification status using the current manufacturer product documentation.
