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ISP1122A from PHILIPS

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ISP1122A

Manufacturer: PHILIPS, PHI

Universal Serial Bus stand-alone hub

Partnumber Manufacturer Quantity Availability
ISP1122A PHILIPS, PHI 1493 In Stock

Description and Introduction

Universal Serial Bus stand-alone hub The ISP1122A is a USB interface chip manufactured by PHILIPS (now NXP Semiconductors). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Part Number:** ISP1122A  
- **Interface:** USB (Universal Serial Bus)  
- **Compliance:** USB 1.1 Full-Speed (12 Mbps)  
- **Operating Voltage:** 3.3V (with 5V tolerant I/Os)  
- **Package:** Typically available in SSOP28 (Shrink Small Outline Package, 28-pin)  
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C) depending on variant  

### **Descriptions:**  
The ISP1122A is a USB interface controller designed for embedded applications requiring USB connectivity. It provides a bridge between a microcontroller or microprocessor and the USB bus, handling USB protocol management.  

### **Features:**  
- Supports USB Full-Speed (12 Mbps) communication.  
- Integrated USB transceiver (PHY).  
- Built-in FIFO buffers for data transfer.  
- Supports control, bulk, interrupt, and isochronous USB transfer types.  
- 3.3V operation with 5V-tolerant I/O pins.  
- Low power consumption with suspend/resume capabilities.  
- On-chip clock multiplier for flexible clock input.  

For exact datasheet details, refer to the official NXP (formerly PHILIPS) documentation.

Application Scenarios & Design Considerations

Universal Serial Bus stand-alone hub

Alternative Part Number

  • PDIUSBP11A --: NXP (formerly Philips) USB interface/transceiver device in the same legacy USB peripheral family, often used as a functional substitute in USB applications.
  • USB2512B --: USB 2.0 hub controller offering comparable USB interface functionality, suitable as a modern replacement in designs originally using the ISP1122A.
  • TUSB2046B --: Widely available USB hub controller with similar USB interface role, commonly used as a cross-vendor alternative for legacy Philips USB parts.

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