圖片僅供參考
規格
| 屬性 | 價值 |
| Manufacturer | JLCPCB Assembly |
| Package | LQFP-128 |
概述
Description
Introduction to IT8893E/FX
IT8893E/FX is a versatile PCIe-to-USB 3.0 host controller chip developed by ITE Tech. It enables high-speed USB 3.0 connectivity (5 Gbps) via PCI Express interfaces, commonly used in desktops, laptops, and embedded systems. Key features include:
- Compatibility: Supports USB 3.0/2.0/1.1 devices.
- Performance: Utilizes PCIe Gen2 x1 lanes for efficient data transfer.
- Flexibility: Integrates with Windows, Linux, and macOS (driver-dependent).
- Applications: Found in expansion cards, docking stations, and industrial PCs.
The chip simplifies adding USB 3.0 ports to systems lacking native support, offering plug-and-play functionality. Its low power consumption and compact design make it ideal for space-constrained environments.
IT8893E/FX is a versatile PCIe-to-USB 3.0 host controller chip developed by ITE Tech. It enables high-speed USB 3.0 connectivity (5 Gbps) via PCI Express interfaces, commonly used in desktops, laptops, and embedded systems. Key features include:
- Compatibility: Supports USB 3.0/2.0/1.1 devices.
- Performance: Utilizes PCIe Gen2 x1 lanes for efficient data transfer.
- Flexibility: Integrates with Windows, Linux, and macOS (driver-dependent).
- Applications: Found in expansion cards, docking stations, and industrial PCs.
The chip simplifies adding USB 3.0 ports to systems lacking native support, offering plug-and-play functionality. Its low power consumption and compact design make it ideal for space-constrained environments.
Equivalent
The IT8893E/FX is a PCIe-to-ISA bridge chip. Equivalent or similar products include:
- ITE IT8888F/G (PCIe-to-LPC bridge)
- ITE IT8896E (PCIe-to-ISA bridge, newer variant)
- Winbond W83627DHG (LPC Super I/O with legacy support)
- Nuvoton NCT6776D (LPC Super I/O for legacy interfaces)
These chips provide similar legacy interface bridging but may vary in features. Exact replacements depend on specific requirements.
- ITE IT8888F/G (PCIe-to-LPC bridge)
- ITE IT8896E (PCIe-to-ISA bridge, newer variant)
- Winbond W83627DHG (LPC Super I/O with legacy support)
- Nuvoton NCT6776D (LPC Super I/O for legacy interfaces)
These chips provide similar legacy interface bridging but may vary in features. Exact replacements depend on specific requirements.
Features
The IT8893E/FX is a PCIe-to-ISA bridge controller with the following key features:
- Interface Conversion: Bridges PCIe to ISA, enabling legacy ISA support on modern systems.
- Compatibility: Supports ISA DMA, I/O cycles, and memory cycles.
- Low Power: Operates at 3.3V with power management features.
- Flexible Clocking: Integrated oscillator or external clock input.
- Package: 128-pin LQFP for compact designs.
- Applications: Used in industrial PCs, embedded systems, and legacy device integration.
It simplifies migration from older ISA-based hardware to PCIe-based platforms while maintaining backward compatibility.
- Interface Conversion: Bridges PCIe to ISA, enabling legacy ISA support on modern systems.
- Compatibility: Supports ISA DMA, I/O cycles, and memory cycles.
- Low Power: Operates at 3.3V with power management features.
- Flexible Clocking: Integrated oscillator or external clock input.
- Package: 128-pin LQFP for compact designs.
- Applications: Used in industrial PCs, embedded systems, and legacy device integration.
It simplifies migration from older ISA-based hardware to PCIe-based platforms while maintaining backward compatibility.
Pinout
The IT8893E/FX is a PCIe-to-ISA bridge IC, typically used to enable legacy ISA support on modern systems.
- Pin Count: 128-pin LQFP (Low-Profile Quad Flat Package).
- Key Functions:
- Bridges PCI Express (PCIe) to ISA bus.
- Supports ISA DMA, interrupts, and I/O cycles.
- Provides LPC (Low Pin Count) interface compatibility.
- Used in industrial and embedded systems for backward compatibility with legacy ISA peripherals.
The IC simplifies integration of older hardware with newer PCIe-based motherboards.
- Pin Count: 128-pin LQFP (Low-Profile Quad Flat Package).
- Key Functions:
- Bridges PCI Express (PCIe) to ISA bus.
- Supports ISA DMA, interrupts, and I/O cycles.
- Provides LPC (Low Pin Count) interface compatibility.
- Used in industrial and embedded systems for backward compatibility with legacy ISA peripherals.
The IC simplifies integration of older hardware with newer PCIe-based motherboards.
Application
The IT8893E/FX is a PCIe-to-USB bridge controller commonly used in:
1. Desktop/Laptop Motherboards – Adds USB ports via PCIe.
2. Docking Stations – Expands connectivity for peripherals.
3. Industrial PCs – Enhances USB support in embedded systems.
4. Gaming/Workstation PCs – Provides additional high-speed USB ports.
5. Medical/Test Equipment – Ensures reliable USB connectivity.
It supports USB 3.0/2.0 and is ideal for expanding USB functionality in systems with limited native ports.
1. Desktop/Laptop Motherboards – Adds USB ports via PCIe.
2. Docking Stations – Expands connectivity for peripherals.
3. Industrial PCs – Enhances USB support in embedded systems.
4. Gaming/Workstation PCs – Provides additional high-speed USB ports.
5. Medical/Test Equipment – Ensures reliable USB connectivity.
It supports USB 3.0/2.0 and is ideal for expanding USB functionality in systems with limited native ports.
Package
The IT8893E/FX is typically available in a QFN (Quad Flat No-leads) package, commonly a 48-pin or 64-pin variant, depending on the specific model. This compact, surface-mount package is designed for efficient thermal performance and space-saving PCB layouts. Exact package details should be verified in the datasheet for precise dimensions and pin configurations.
