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UPD72042 from NEC

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UPD72042

Manufacturer: NEC

LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL

Partnumber Manufacturer Quantity Availability
UPD72042 NEC 9 In Stock

Description and Introduction

LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL The UPD72042 is a USB 2.0 host controller manufactured by NEC (now Renesas Electronics). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** NEC (Renesas Electronics)  
- **Interface:** USB 2.0 (High-Speed, Full-Speed, Low-Speed)  
- **Data Transfer Rate:** Up to 480 Mbps (High-Speed)  
- **Compliance:** USB 2.0, OHCI (Open Host Controller Interface), EHCI (Enhanced Host Controller Interface)  
- **Bus Interface:** PCI (32-bit, 33/66 MHz)  
- **Number of Ports:** Typically supports 2–4 downstream USB ports  
- **Power Management:** Supports ACPI (Advanced Configuration and Power Interface)  

### **Descriptions:**  
- The UPD72042 is a single-chip USB 2.0 host controller designed for PCI-based systems.  
- It integrates both EHCI (for High-Speed USB 2.0) and OHCI (for Full-Speed/Low-Speed USB 1.1) controllers for backward compatibility.  
- Used in motherboards, embedded systems, and add-on PCI cards to provide USB connectivity.  

### **Features:**  
- **Dual-Mode Controller:** Supports both EHCI (USB 2.0) and OHCI (USB 1.1) modes.  
- **PCI Compliance:** Works with standard PCI slots (3.3V/5V tolerant).  
- **Hot-Plug Support:** Allows devices to be connected/disconnected without rebooting.  
- **Low Power Consumption:** Optimized for power efficiency in compliance with ACPI standards.  
- **Built-in FIFO Buffers:** Enhances data transfer efficiency.  

This information is based solely on the manufacturer's documentation and technical specifications.

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