PI7C8154ANAE - 2-Port 64-bit PCI Bridge | Diodes Incorporated
MPN: PI7C8154ANAE ✗ انتهى عمره الإنتاجيPI7C8154ANAE نظرة عامة
A PCI bridge is a specialized interface semiconductor that extends a PCI bus through a controlled communication boundary. Within the PCI interface hierarchy, a PCI-to-PCI bridge connects two PCI domains or bus segments, allowing compatible PCI devices and subsystems to communicate without treating both segments as one uninterrupted electrical bus. The PI7C8154ANAE occupies the interface-IC category and is particularly relevant to legacy and industrial PCI system expansion.
The PI7C8154ANAE's principal documented characteristics are its two-port bridge configuration, 64-bit data width, 66 MHz operating frequency, asynchronous bridge operation, and 304-BBGA package. These characteristics place it in the role of a high-bandwidth protocol translator between PCI buses. The package's 304-ball construction supports the numerous power, ground, signal, and interface connections expected in a complex multi-bus bridge.
Typical implementation contexts include industrial computers, embedded PCI expansion systems, legacy server or workstation designs, and test equipment that retains a PCI interface. The 64-bit path supports efficient transfer of wide data payloads, while the 66 MHz operating point represents the upper operating frequency identified for this device in its product documentation.
The most important design task is PCB-level integration. A 304-BBGA device requires a land pattern, escape routing, reference-plane management, power distribution, and thermal design that account for every specified ball assignment. Use the manufacturer datasheet pin-description table and recommended land pattern when defining the board footprint and routing all power, ground, clock, and PCI signals.
This page organizes the verified device identity, package information, interface characteristics, application considerations, and comparison candidates into an engineering-oriented selection guide. It also separates known differences among related PI7C8154 ordering codes, helping designers verify compatibility before committing a complex board layout.
بدائل مباشرة لـ PI7C8154ANAE — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلPI7C8154ANAE الحدود القصوى والخصائص الكهربائية
| Product Type | PCI-to-PCI Bridge Interface IC |
| Number of Ports | 2 ports |
| PCI Data Width | 64 bit |
| Maximum Documented Clock Frequency | 66 MHz |
| Bridge Operation | Asynchronous |
| العلبة | 304-BBGA |
| Package Dimensions | 31 mm x 31 mm |
| Number of Package Balls | 304 balls |
| نوع التركيب | Surface Mount |
دليل تكوين أطراف PI7C8154ANAE 304 balls
تكوين الأطراف لـ PI7C8154ANAE (حزمة 304 balls). يتميز جهاز الطاقة هذا بأطراف البوابة والمصرف والمصدر. بالنسبة للحزم غير المستقطبة، راجع ورقة بيانات الشركة المصنعة لمعرفة الاتجاه الدقيق للطرف 1 وتفاصيل البصمة. تشمل التطبيقات الشائعة تصميم مصادر الطاقة وتشغيل المحركات وتبديل الأحمال.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ PI7C8154ANAE.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
PI7C8154ANAE مناسب لـ 6 التطبيقs: Industrial PCI Bus Expansion, Embedded Legacy PCI Controller, PCI Test and Measurement Platform, Legacy Workstation Peripheral Interconnect, PCI-to-PCI Protocol Segmentation, PCI Data Acquisition and Control System.
Industrial PCI Bus Expansion
PI7C8154ANAE fits an industrial computer or embedded controller that must bridge two legacy PCI bus segments. Its two-port, 64-bit PCI interface and documented operation up to 66 MHz provide the basic protocol bandwidth expected by a PCI expansion architecture. The asynchronous bridge function allows each side of the connection to operate independently under the timing rules defined by the device. Because the package contains 304 balls, implementation requires careful BGA escape routing, continuous reference planes, local decoupling, and a manufacturer-defined land pattern. This role is appropriate when preserving an established PCI topology is more important than introducing a newer host-to-device protocol.
Embedded Legacy PCI Controller
PI7C8154ANAE can support an embedded controller or legacy subsystem that still exposes PCI slots or PCI bus masters. The documented 64-bit width and 66 MHz maximum frequency align with the performance envelope of a two-port PCI bridge, while asynchronous operation supports communication between separately clocked PCI domains. A practical design must preserve the PCI signal topology, power sequencing, clock distribution, and reset behavior specified by the manufacturer datasheet. The 304-BBGA package also makes controlled impedance routing, via-in-pad considerations, thermal spreading, and manufacturing capability important qualifications.
PCI Test and Measurement Platform
PI7C8154ANAE is suitable for test and measurement equipment that needs to place two PCI resources behind an asynchronous bridge boundary. Its two-port architecture can support a host-side and device-side PCI connection, while the 64-bit, 66 MHz interface provides the documented transfer characteristics of a legacy PCI bridge. In instrumentation, clock integrity, reset sequencing, isolation boundaries, and deterministic bus behavior can be as important as nominal throughput. Validate timing margins, power rails, termination, and connector-related signal integrity against the manufacturer datasheet before production.
Legacy Workstation Peripheral Interconnect
PI7C8154ANAE can be considered for a legacy workstation or server design that retains PCI expansion while maintaining two distinct bus segments. The 64-bit data width and 66 MHz operating frequency correspond to the conventional PCI performance range associated with this bridge family. Asynchronous operation may assist when the two bridged PCI domains are not referenced to an identical clock arrangement. However, this is a mature interface technology, so the system must already contain a compatible PCI host environment, connector topology, and peripheral set. Retrofitting it to a PCIe-native system would require a broader platform redesign.
PCI-to-PCI Protocol Segmentation
PI7C8154ANAE is designed for applications that require segmentation between two PCI buses rather than a simple endpoint connection. Its two-port asynchronous bridge architecture gives a board designer a defined way to separate PCI traffic into host-side and device-side segments. The 304-BBGA implementation exposes the complexity of a high-pin-count interface device and makes schematic review, ball assignment, power planning, and signal simulation essential. Design reviews should focus on bus ownership, arbitration behavior, reset domains, clock relationships, and electrical loading rather than treating the device as a simple protocol converter.
PCI Data Acquisition and Control System
PI7C8154ANAE may be used in a PCI-based data-acquisition system where an embedded controller communicates with a PCI instrument or peripheral through a bridged PCI topology. The two-port arrangement can organize the controller and instrument side of the system, while 64-bit operation at up to 66 MHz supports the documented legacy PCI bandwidth. Practical deployment requires deterministic PCI timing, uninterrupted reference planes, controlled clock distribution, and adequate decoupling across all supply rails. Firmware and device drivers must also support the segmented bus arrangement, and validation should include hot-plug, reset, and sustained-transfer tests where those behaviors are required by the system specification.
بيانات مرجعية هندسية لـ PI7C8154ANAE — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Product Type | PCI-to-PCI Bridge Interface IC |
| Brand | Diodes Incorporated |
| Package | 304-BBGA, 31 mm x 31 mm |
| Number of Ports | 2 ports |
| PCI Data Width | 64 bit |
| Maximum Clock Frequency | 66 MHz |
| Bridge Operation | Asynchronous |
| Mounting Type | Surface Mount |
أبرز الفروقات
- Two-port asynchronous PCI bridge architecture (مقابلPI7C8154BNAE)
- High-density 304-BBGA integration (مقابلPI7C8154BNAIE)
- Documented 64-bit, 66 MHz PCI interface (مقابلPI7C8154BNAE-80)
ملاحظات التصميم
Use the exact 304-BBGA land pattern and ball map from the manufacturer datasheet. Route every supply and ground ball according to the recommended plane assignment, place decoupling capacitance close to the relevant power balls, and maintain uninterrupted return paths beneath high-speed clock and PCI traces. Do not derive the footprint from the 31 mm by 31 mm body size alone because ball pitch, pad geometry, and solder-mask details define manufacturability.
Preserve controlled-impedance routing for the 64-bit PCI data paths and clock signals, following the stackup and routing recommendations in the manufacturer design documentation. Pay particular attention to branch lengths, return-path continuity, connector transitions, and stubs introduced by test points. The bridge's asynchronous operation does not remove the need to satisfy PCI source-synchronous timing and board-level signal-integrity requirements.
Establish the core and PCI I/O voltage rails, tolerances, sequencing rules, and current limits from the datasheet before finalizing the power architecture. Estimated: dissipation equals the sum of each rail's measured current multiplied by its voltage, plus the portion of total input power dissipated internally; the rail currents cannot be evaluated until operating conditions are known. Use local bulk and high-frequency decoupling according to the manufacturer's guidance.
Do not substitute PI7C8154BNAE, PI7C8154BNAIE, PI7C8154BNAE-80, PI7C8154ANA, or PI7C8154BNAI solely because their names are similar. The available records show comparisons among these ordering codes but do not establish identical pinouts, electrical limits, timing, or package details. Verify each exact MPN against its own datasheet and confirm any substitution with the manufacturer before changing a released PCB.
Provide continuous copper spreading beneath the 304-BBGA and account for the package's thermal behavior in the board stackup. Estimated: junction temperature equals ambient temperature plus the calculated power loss multiplied by the effective board-and-package thermal resistance, but those inputs are not established here. Validate the final assembly through thermal simulation and temperature-rise testing, especially at elevated ambient temperature and maximum intended PCI traffic.
معلومات الامتثال
Compliance status is not stated for the exact PI7C8154ANAE ordering code in the available manufacturer-linked and distributor records. Obtain current declarations for the exact MPN before environmental or automotive qualification.
