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PEX8311-AA66BCF
PEX8311-AA66BCF
| Part Number | PEX8311-AA66BCF |
|---|---|
| Manufacturer | Broadcom Limited (PLX Technology) |
| Category | Integrated Circuits (ICs) > Interface – Specialized / PCI Express to Local Bus Bridges |
| Description | PCI Express Gen 1 to 32-bit/66MHz Local Bus Bridge Controller featuring integrated DMA channels, low latency routing, and robust legacy migration support. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The PEX8311-AA66BCF is a single-lane (x1) PCI Express Gen 1 to 32-bit/66MHz Local Bus bridge controller from Broadcom (formerly PLX Technology). It provides a seamless migration path for legacy endpoint designs, linking modern PCIe slots to high-performance local buses. Supporting Generic, Motorola, and Intel bus modes, it offers maximum hardware flexibility. Integrated DMA engines, large internal buffers, and low-latency conversion logic optimize data transfers without bottlenecks. Housed in a lead-free BGA-337 (21x21mm) package, it is ideal for industrial automation, aerospace instrumentation, test systems, and telecom controllers.
Core Advantages
Seamless Legacy Interface Migration
Allows system architects to keep using existing, field-proven 32-bit/66MHz Local Bus hardware logic designs and software components, minimizing redesign costs when converting systems to PCI Express architectures.
High-Efficiency DMA Channels
Integrates two standalone Direct Memory Access (DMA) channels that facilitate autonomous high-speed burst data transfers between the Local Bus and host system RAM, significantly reducing host CPU utilization.
Flexible Multi-Mode Local Bus Formats
Natively accommodates multiple industry-standard local processor/bus layout topologies, enabling direct hardware interfacing with various microprocessors, digital signal processors (DSPs), and custom FPGAs.
Low Latency and Deep Packet Buffering
Outfitted with deep internal FIFO registers and optimized internal translation pipelines to maintain low propagation latency, allowing for predictable performance during real-time data streaming operations.
Key Specifications
| Brand | Broadcom / PLX Technology |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free Standard (Green Package “F” Suffix) |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | BGA-337 (21x21mm) |
| Mounting Type | Surface Mount Technology (SMD/SMT) |
| Surface Marking / Silkscreen | PEX8311-AA66BC F Marking |
| Interface Configuration | PCI Express Gen 1.0a to 32-bit Local Bus Interconnect Bridge |
| PCIe Bandwidth Scaling | Single-Lane (x1) Link supporting 2.5 Gbps signaling speeds |
| Local Bus Speed Support | Up to 32-bit width at 66 MHz operating frequency |
| Local Bus Signaling Modes | M-Mode (Motorola), C-Mode (Generic), and J-Mode (Intel/Non-Muxed standard) |
| DMA Engine Channels | 2x Standalone Dual-Address Scatter-Gather DMA Channels |
| Internal Packet Storage | Integrated deep read/write FIFO configuration arrays |
| Core Power Requirements | 1.2V Core Supply (Internal/External options) / 2.5V or 3.3V Local I/O Supply Rails |
| Operating Temperature Range | 0°C to +70°C (Standard Commercial Thermal Specification Window) |
Typical Applications
- Industrial Personal Computers (IPC), Custom Single Board Computers, and CompactPCI Hardware
- Automated Laboratory Test Instrumentation, High-Frequency Oscillation Cards, and Data Loggers
- Telecommunication Gateway Switch Interfaces and Legacy Data Ingestion Expansion Cards
- Aerospace Flight Data Capture Units, Radar Interface Bridges, and Real-Time Control Systems
- Medical Diagnostic Systems, Imaging Capture Upgrades, and High-Integrity Factory PLCs
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your current stock inventory of the PEX8311-AA66BCF completely genuine and original?
A: Yes, we guarantee that all PEX8311-AA66BCF bridge components in our stock are 100% brand-new, original factory products from Broadcom (PLX), handled and stored under strict anti-static ESD shielding and dry-pack moisture-control standards.
Q2: What is the main structural difference between C-Mode and J-Mode operation?
A: These modes configure the local bus multiplexing layout. C-Mode is a non-multiplexed configuration optimized for generic peripheral designs, whereas J-Mode provides an address/data multiplexed format compatible with certain Intel microprocessors and specialized embedded controllers.
Q3: Does this chip support power management functions to lower energy usage in quiet states?
A: Yes, the PEX8311-AA66BCF fully adheres to the PCI Bus Power Management Interface Specification (Revision 1.1) standards, allowing the host system to put the bridge into low-power states (D0, D3hot, D3cold) during periods of inactivity.
Q4: How can our engineering group download reference schematic layout files, register driver libraries, or request bulk quotes?
A: Please complete our Quick Inquiry web form on this page with details about your processing parameters. Our application support desk will process your inquiry and dispatch the available technical documentation package within 24 hours.
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