PI7C8952AFAEX - PCI to UART Bridge | Diodes Incorporated
MPN: PI7C8952AFAEX ✓ פעילPI7C8952AFAEX סקירה
A PCI-to-UART bridge is an interface controller that connects a host computer's PCI peripheral bus with UART-compatible serial equipment. It belongs to the interface IC hierarchy, where bridge and protocol controllers translate signals between bus architectures that otherwise require incompatible connectors, voltage levels, or data formats. Such devices can reduce the need for a separate host-side PCI adapter when the target equipment relies on legacy or industrial serial communication.
The PI7C8952AFAEX supports both 3 V and 5 V supply configurations, giving designers flexibility when integrating it with systems that use different primary logic rails. Its PCI protocol interface is intended for embedded host-bus designs, while the UART side provides the physical signaling path for serial peripherals. The 100-LQFP package offers a high pin count suitable for external bus routing and interface connectivity.
The 14 mm by 14 mm LQFP construction provides clearly defined lead geometry for conventional surface-mount assembly and inspection. Tape-and-reel packaging with 1,000 units per reel supports automated pick-and-place equipment and volume production. Exact clocking, transceiver electrical characteristics, operating temperature, and host-side interface details should be confirmed in the manufacturer datasheet before schematic capture.
Typical uses include PCI-based industrial control systems, serial data acquisition equipment, legacy peripheral migration, embedded communications appliances, and test systems that need a bridge between a PCI host and one or more UART peripherals. The bridge is particularly relevant where a compact embedded host has a PCI bus but lacks a direct UART expansion interface.
When designing the circuit, begin with the manufacturer's pin-description table and reference connection details rather than inferring connections from the package position. Confirm the intended supply rail, PCI interface requirements, UART signal levels, external clocking components, and decoupling network against the electrical characteristics before release.
This page organizes the verified PI7C8952AFAEX package, protocol, supply, and ordering information into an engineering-focused product reference. It also highlights drop-in replacement limits, sourcing questions, and design checks that help distinguish a genuine PCB-compatible substitute from a merely similar PCI-to-UART controller.
חלופות תחליף ישיר עבור PI7C8952AFAEX — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
אין חלופות תואמות Drop-in עבור מוצר זה.
בקשת חלופותPI7C8952AFAEX דירוגים מרביים ומאפיינים חשמליים
| Manufacturer | Diodes Incorporated |
| Product Type | PCI-to-UART bridge controller |
| Host Bus Protocol | PCI |
| Serial Interface | UART |
| Supply Voltage Options | 3 V or 5 V |
| מארז | 100-LQFP (14 mm x 14 mm) |
| מספר פינים | 100 pins |
| Package Type | Low-profile quad flat package |
| סוג הרכבה | Surface mount |
| Packaging | Tape and reel |
| Standard Reel Quantity | 1,000 units |
מדריך תצורת פינים של PI7C8952AFAEX low-profile quad flat package
תצורת פינים עבור PI7C8952AFAEX (מארזת low-profile quad flat package). רכיב הספק זה כולל מסופי שער, ניקוז ומקור. במארזים לא מקוטבים, יש לעיין בגיליון הנתונים של היצרן לכיוון מדויק של פין 1 ולפרטי טביעת רגל. יישומים נפוצים כוללים תכנון ספקי כוח, הנעת מנועים והחלפת עומסים.
אין נתוני פריסת פינים מפורטים עבור PI7C8952AFAEX.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
PI7C8952AFAEX מתאים עבור 6 יישוםs: Industrial PCI Control Systems, PCI-to-Serial Data Acquisition, Legacy Peripheral Migration, Embedded Communications Appliance, Test and Measurement Fixture, Secure Embedded Console.
Industrial PCI Control Systems
PI7C8952AFAEX fits an embedded industrial controller that exposes a PCI host bus and needs to communicate with UART-based sensors, motion controllers, or operator panels. Its PCI protocol interface and UART interface provide the bridge between those two domains, while 3 V or 5 V supply options support common embedded logic arrangements. Before schematic capture, verify the required channel count, UART electrical standard, PCI timing, and interrupt topology in the manufacturer datasheet. The 100-LQFP package provides the lead count needed for host-bus and serial connectivity, while tape-and-reel packaging supports automated assembly.
מומלץ
PCI-to-Serial Data Acquisition
The PI7C8952AFAEX can connect a PCI-capable host or embedded controller to serial acquisition equipment that uses UART signaling. It is useful where a legacy peripheral must remain connected to a modern PCI-based system without building a separate host card. The bridge concentrates the PCI and UART functions in a 100-pin LQFP device, but the acquisition front end still needs correct line levels, grounding, and isolation. Confirm supported baud rates, FIFO behavior, connector requirements, and interrupt handling in the datasheet.
מומלץ
Legacy Peripheral Migration
PI7C8952AFAEX is applicable when an instrument, printer, controller, or service module uses a UART interface but the computing platform exposes PCI. Integrating the bridge can preserve an established peripheral ecosystem while reducing the need for a discrete PCI host adapter. The 3 V and 5 V supply options should be reconciled with the host platform and the voltage requirements of attached interface devices. A replacement program requires a complete comparison of UART levels, connector pinouts, timing, and cable behavior rather than relying on the shared UART description.
מומלץ
Embedded Communications Appliance
PI7C8952AFAEX can serve as the PCI-to-serial interface within an embedded gateway, communications appliance, or service cabinet that combines PCI host connectivity with one or more UART peripherals. The 100-LQFP package supports a high-density PCB design, and its selectable 3 V or 5 V supply options can simplify rail planning when the host platform permits. Engineering validation should include signal-integrity review of PCI routing, UART baud-rate support, connector grounding, reset behavior, and the thermal environment around the LQFP device.
מומלץ
Test and Measurement Fixture
PI7C8952AFAEX is suitable for a PCI-based test fixture that communicates with legacy instruments or bench peripherals through UART. It can centralize serial connectivity in a compact embedded controller while keeping instrumentation behind established connectors and interface levels. The design should verify the bridge against the host's PCI requirements and confirm that the UART implementation supports the instrument's baud rate, framing, and handshake behavior. Provide suitable protection, grounding, and isolation where the attached test equipment uses unbalanced RS-232 signals.
מומלץ
Secure Embedded Console
PI7C8952AFAEX can be evaluated for an embedded console that needs to bridge PCI host resources to a UART-connected local interface. This arrangement may support configuration access, service commands, or peripheral monitoring within equipment that retains a PCI-based internal architecture. Because access interfaces can expose sensitive control paths, firmware should control command authorization and port access. Hardware validation must cover electrical levels, reset sequencing, interrupt latency, grounding, and the possibility that a UART port will be exposed through a physical connector.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PI7C8952AFAEX — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | 100-LQFP (14 mm x 14 mm) |
| Host Bus Protocol | PCI |
| Serial Interface | UART |
| Supply Voltage Options | 3 V or 5 V |
| Pin Count | 100 pins |
| Package Dimensions | 14 mm x 14 mm |
| Packaging | Tape and reel |
| Standard Reel Quantity | 1,000 units |
| Product Type | PCI-to-UART bridge controller |
מבדילים עיקריים
- Specific PCI-to-UART integration in a 100-lead LQFP (לעומתGeneric PCI-to-UART controller)
- Selectable supply configurations (לעומתSingle-rail UART interface controller)
- Production-oriented reel format (לעומתUnpackaged prototype configuration)
הערות תכנון
Assign the PCB footprint from the manufacturer package drawing and preserve the 100-lead LQFP land pattern, lead pitch, solder-mask clearance, and exposed pad requirements exactly as documented. Do not infer pad geometry from the generic phrase 100-LQFP. Confirm the pin-1 orientation against the package marking and land pattern because a mirrored or rotated 100-lead footprint can create an otherwise invisible assembly incompatibility.
Resolve the 3 V or 5 V supply choice against the PCI host interface, UART transceiver requirements, and every attached circuit before schematic release. Place the regulator and decoupling network so the bridge receives a stable local rail with low transient impedance. Follow the manufacturer guidance for capacitor type, placement, and trace length; do not rely on a remote bulk capacitor to substitute for local high-frequency bypass.
Route the PCI interface as a controlled-length, topology-aware network with continuous return paths and no unnecessary test pads or stubs. Keep the 100-LQFP perimeter orderly to minimize pin-level fanout congestion. Define UART routing according to the selected external transceiver and connector, keeping long unprotected serial paths away from switching nodes and sensitive analog circuitry.
Do not treat every UART-compatible controller as a drop-in substitute. A valid replacement must preserve the numbered pin functions, package geometry, PCI timing, supply rails, and electrical interfaces. Also avoid assuming that the bridge directly supports RS-232 voltage levels; UART logic signaling and RS-232 are different physical interfaces, so select and design the appropriate transceiver when required.
מידע על תאימות
No specific environmental or automotive compliance declaration is included in the cited product records. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification status with Diodes Incorporated before qualification.
