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ASM1083
ASM1083
| Part Number | ASM1083 |
|---|---|
| Manufacturer | ASMedia Technology Inc. |
| Category | Integrated Circuits (ICs) > Interface – Bridges / PCI Express to PCI Bridge |
| Description | High-performance PCI Express x1 to 32-bit PCI parallel bus bridge controller IC, fully compliant with PCIe 1.0a / PCI 3.0 standards, engineered for legacy card integration and motherboard interface bridging. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The ASM1083 is a single-chip PCI Express-to-PCI forward bridge from ASMedia. It connects legacy 32-bit parallel PCI peripherals to modern PCIe x1 host lanes, solving the lack of native PCI bus on new chipsets. Its upstream PCIe 1.0a x1 port runs at 2.5Gbps, translating serial packets to standard 32-bit PCI 3.0 bus at fixed 33MHz clock. Built-in buffer queues cut protocol conversion latency, housed in compact 14×14mm LQFP-128 package. It is a cost-effective plug-and-play solution for industrial DAQ cards, legacy audio adapters, POS expansion and automation equipment.
Core Advantages
True Transparent Forward Bridging
Operates seamlessly at the hardware silicon register level, allowing attached legacy PCI devices to appear directly to the host operating system without requiring legacy application rewrites or driver wrappers.
Multi-Device PCI Master Allocation
Supports a fully functional downstream parallel PCI bus matrix capable of driving multiple master/slave slots or devices via external arbiter configurations, maintaining robust hardware capability.
Exceptional Signal Integrity and CLK Generation
Natively embeds dedicated internal clock buffering logic to output multiple clean, low-jitter PCI synchronous clock lines, significantly reducing external discrete crystal networks and PCB trace complexity.
Comprehensive Legacy OS Stability
Fully compliant with global advanced configuration and power management interface (ACPI) frameworks, ensuring transparent driver initialization across industrial DOS embedded loops, Windows, and modern Linux kernels.
Key Specifications
| Brand | ASMedia PCI / PCIe Bridge Controller Series |
|---|---|
| Supply Voltage | 3.3V Nominal Operating Voltage (2.97V ~ 3.63V Full Operating Range) |
| RoHS Status | RoHS Compliant / Lead-Free & Green Manufacturing Standards Certified |
| EDA/CAD Model | 3D STEP Models, Schematic Symbols, and Pinout Footprints available upon request |
| Package / Case | LQFP-128 (14×14mm) |
| Mounting Type | Surface Mount Technology (SMD/SMT Reflow Assembly) |
| Surface Marking / Silkscreen | ASM1083 Marking |
| Upstream Port Configuration | 1-Lane (x1) PCI Express Base Specification Revision 1.0a Compliant |
| Upstream Data Bandwidth | 2.5 Gbps Signaling Throughput Rate |
| PCIe Reference Clock | 100MHz Differential PCIe Reference Clock Input |
| SSC Support | Built-in Spread Spectrum Clock for EMI Reduction |
| ECRC Error Detection | Full ECRC Error Reporting & Fault Handling Support |
| PCI Payload Limit | Max 128-byte PCI Express Payload Size |
| I2C Configuration Interface | On-chip I2C Bus for External EEPROM Parameter Storage |
| Downstream Port Configuration | 32-bit Parallel PCI Bus Architecture, compliant with PCI Local Bus Specification Revision 3.0 |
| PCI Bus Clock Frequency Support | Fixed 33 MHz Parallel Bus Operation |
| Power Management Protocols | Supports PCI Bus Power Management Interface Specification Rev 2.0 and ACPI Links; No PCIe ASPM Support |
| Integrated IO Support | On-chip support for 3.3V I/O signaling with 5V input tolerance limits |
| Operating Temperature Window | 0°C to +85°C (Standard Commercial Operating Temperature Range) |
| Storage Temperature Range | -40°C to +125°C Component Storage Temperature Limit |
Typical Applications
- Modern Desktop Computer Motherboards, Industrial Motherboards, and Server Interconnect Bridges
- PCI Express to Multi-Slot Parallel PCI Riser Cards and Extension Expansion Chassis
- Industrial Automation PC Systems, Legacy Data Acquisition (DAQ) Boards, and CNC Interface Cards
- Legacy Telecommunication Switching Boards, Voice Interface Cards, and Sound/Audio Production Adapters
- Retail Point-of-Sale (POS) Multi-Serial Port Expansion Cards and Legacy Network Interface Controller (NIC) Adapters
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 |
| Warranty Policy | 1-Year Standard Quality Warranty for all brand-new original components |
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 currently available stock of the ASM1083 bridge controller 100% genuine and original?
A: Yes, we guarantee that all ASM1083 chips in our inventory are 100% brand-new, factory-original products directly from ASMedia Technology Inc. Every component batch is tracked via rigorous internal quality control protocols and shipped inside secure anti-static protective packaging to ensure lead co-planarity.
Q2: Does a system utilizing the ASM1083 controller require proprietary drivers to activate the parallel PCI slot?
A: No custom drivers are required for the ASM1083 itself. The chip acts as a transparent forward bridge that maps legacy PCI configurations directly into the standard PCI Express address hierarchy. Mainstream operating systems (such as Windows and Linux) recognize the bridge natively via built-in system drivers; you only need to install the standard drivers for the specific legacy PCI card you insert.
Q3: Does the parallel PCI interface driven by the ASM1083 support older 5V legacy insert cards safely?
A: The ASM1083 operates primarily on an energy-efficient 3.3V digital I/O rail framework but features native 5V signal input tolerance. This design parameter allows it to safely interface with dual-voltage (3.3V/5V) peripheral designs common in industrial automation and legacy computer assemblies.
Q4: How can our design and fabrication division request the latest reference schematics or a tiered commercial quote for production?
A: Please fill out the web-based Quick Inquiry form located on this product page with your target volume metrics. Our high-speed interface technical sales group will evaluate your parameters and follow up with complete technical datasheets and custom wholesale pricing schedules within 24 hours.
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