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ASM1182E
ASM1182E
| Part Number | ASM1182E |
|---|---|
| Manufacturer | ASMedia Technology Inc. |
| Category | Integrated Circuits (ICs) > Interface – Specialized / PCI Express Packet Switch |
| Description | High-performance PCI Express Gen2 packet switch controller featuring a 1-lane upstream port to 2-lane downstream ports replication, designed for seamless PCIe expansion and IO scaling applications. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The ASM1182E is a low-power PCIe Gen2 packet switch from ASMedia, acting as a 1-to-2 PCIe lane splitter to convert one upstream x1 port into two independent downstream x1 ports. Optimized for motherboards, desktops and embedded devices with limited PCIe lanes, it supports backward compatibility with PCIe 1.0a/1.1 and delivers stable high-speed signal transmission via built-in differential signal technology. Housed in compact 7×7mm QFN-48-EP package, it ensures reliable signal integrity for long PCB traces, widely used in PCIe SATA/USB expansion and multi-I/O scaling projects.
Core Advantages
Cost-Effective I/O Expansion
Allows system architects to expand limited processor or chipset PCIe lanes effortlessly into multiple downstream nodes, significantly reducing system development costs and simplifying component layouts.
Exceptional Signal Integrity Engine
Natively incorporates advanced equalization and programmable transmitter de-emphasis tuning to counteract high-frequency insertion loss, ensuring clean eye diagrams over standard FR4 PCB channels.
Green Power Management Subsystem
Integrates advanced dynamic link-state power management protocols compliant with PCI Power Management Spec 1.2 (including L0s, L1, L2/L3 low-power modes) to reduce aggregate power dissipation when downstream lanes are idle.
Driverless Operating System Integration
Operates transparently to the OS kernel as a standard-compliant PCI-to-PCI bridge module, requiring zero custom software drivers or architecture firmware adjustments across Windows, Linux, or macOS deployment scopes.
Key Specifications
| Brand | ASMedia High-Speed Interface Switch Series |
|---|---|
| Supply Voltage | 3.3V Standard Operating Voltage (2.7V ~ 3.6V Operating Range) |
| RoHS Status | RoHS Compliant / Lead-Free / Green Halogen-Free Materials Standards Approved |
| EDA/CAD Model | 3D STEP Models, Schematic Symbols, and Pinout Footprints available upon request |
| Package / Case | QFN-48-EP (7×7mm) |
| Mounting Type | Surface Mount Technology (SMD/SMT Reflow Assembly) |
| Surface Marking / Silkscreen | ASM1182e Marking |
| Interface Topology Type | PCI Express Gen 2 Packet Switch / Splitter Bridge |
| Port Structure Layout | 1 x Upstream PCIe x1 Port to 2 x Downstream PCIe x1 Ports |
| Maximum Data Transfer Rate | Supports PCIe 2.0 Base Specification standards delivering up to 5.0 Gbps per lane bandwidth |
| Backwards Compatibility | Fully compliant with PCI Express Gen 1.0a / Gen 1.1 architectures at 2.5 Gbps signaling rates |
| Power Management Standard | PCI PM Spec 1.2, Supports Active State Power Management (ASPM) L0s, L1, L2, L3 links |
| Clock Configuration Support | Integrated 100 MHz differential reference clock buffer, no external clock buffer required |
| Differential Impedance Match | Optimized for 100Ω differential PCIe signal traces on FR4 PCB |
| On-Chip Equalization | Programmable transmit equalization for high-loss PCB routing channels |
| Signal De-emphasis | Built-in Gen2 compliant transmit de-emphasis for long trace signal compensation |
| Diagnostic Interface | I2C debug interface for internal register monitoring and configuration |
| Typical Operating Current | 120mA full active mode (3.3V supply) |
| Sleep Mode Current | 18mA low-power idle state with all downstream links suspended |
| PCB Trace Length Tolerance | Supports up to 20-inch total differential trace length with equalization enabled |
| Operating Temperature Spectrum | 0°C to +85°C (Standard Commercial Operating Temperature Range) |
| Storage Temperature Range | -40°C to +125°C Component Storage Temperature Limit |
Typical Applications
- Desktop PC Mainboards, Workstation Expansion Cards, and Custom Embedded Computing Nodes
- PCI Express Multi-Slot Adapter Riser Cards, Cryptocurrency Mining Rigs, and Development Hardware Breakouts
- Industrial Control Automation Systems, Single Board Computers (SBCs), and Multi-Port Serial Communication Boards
- Network Interface Card (NIC) Hub Extensions, PCIe to Quad-Port Gigabit Ethernet Adapters
- Storage Subsystem Expansion Layouts, Multiple M.2 SATA/NVMe Controller Expansion Boards
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 ASM1182E packet switch 100% genuine and original?
A: Yes, we guarantee that all ASM1182E controllers in our inventory are 100% brand-new, factory-original products directly from ASMedia Technology Inc. Every component batch undergoes strict quality control and is stored and dispatched inside secure anti-static protective packaging to keep the QFN contacts pristine.
Q2: Does the ASM1182E require custom software drivers to work in Windows or Linux networks?
A: No driver installation is required. The ASM1182E operates completely at the hardware silicon layer and reports itself to the host operating system as a native PCI-to-PCI bridge compliant with the standard PCI Express Base specification. The system automatically initializes it using built-in, universal system drivers.
Q3: Can the downstream lanes of the ASM1182E switch run older PCIe 1.1 peripheral components?
A: Yes, the chip is fully backward compatible with PCIe 1.0a and 1.1. While the upstream and downstream ports support PCI Express Gen 2 speeds up to 5.0 Gbps per lane, the integrated transceiver auto-negotiates link speed downwards if an older Gen 1 device operating at 2.5 Gbps is attached to a downstream port.
Q4: How can our hardware design department obtain the official pin assignment reference or request tiered wholesale pricing?
A: Please submit your estimated production volume and target schedule parameters through our web-based Quick Inquiry form. Our technical interface sales desk will review your submission and reply with full data sheets and volume commercial pricing tables within 24 hours.
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