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ISP1123D

Manufacturer: NXPLIPS, PHILIPS

Universal Serial Bus compound hub

Partnumber Manufacturer Quantity Availability
ISP1123D NXPLIPS, PHILIPS 21696 In Stock

Description and Introduction

Universal Serial Bus compound hub The ISP1123D is a USB interface device manufactured by Philips Semiconductors (now NXP Semiconductors). Below are the factual specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Manufacturer Specifications:**
1. **Manufacturer:** Philips Semiconductors (NXP Semiconductors)  
2. **Part Number:** ISP1123D  
3. **Interface Type:** USB 1.1 Full-Speed (12 Mbps)  
4. **Operating Voltage:** 3.3V ±10%  
5. **Operating Temperature Range:** -40°C to +85°C  
6. **Package Type:** SO28 (Small Outline, 28-pin)  
7. **Compliance:** USB 1.1 compliant  

### **Descriptions:**
- The ISP1123D is a USB transceiver designed for Full-Speed (12 Mbps) USB communication.  
- It integrates the necessary analog front-end circuitry for USB signal transmission and reception.  
- The device is commonly used in embedded systems requiring USB connectivity.  

### **Features:**
1. Supports USB Full-Speed (12 Mbps) operation.  
2. Integrated USB transceiver with differential data lines (D+ and D-).  
3. Single 3.3V power supply operation.  
4. Built-in voltage regulator for USB signaling.  
5. Supports suspend and resume modes for power management.  
6. ESD protection on USB data lines.  
7. RoHS compliant.  

These details are based solely on the manufacturer's documented specifications and features.

Application Scenarios & Design Considerations

Universal Serial Bus compound hub

Alternative Part Number

  • PCA9554D --: I2C 8-bit I/O expander in SO package, functionally similar to the ISP1123D I/O expander with comparable pinout and interface.
  • PCF8574T --: Widely available I2C 8-bit I/O expander in SOIC, a common drop-in style replacement for ISP1123D designs with similar electrical characteristics.
  • TCA9554D --: I2C 8-bit I/O expander in SOIC with interrupt output, offering a compatible alternative from a different vendor and series.
  • TUSB2046B --: USB hub controller offering comparable USB interface functionality, usable as a cross-manufacturer alternative when the original NXP part is unavailable.
  • PDIUSB12D --: USB interface controller with similar USB-to-serial bridge functionality and comparable pinout, commonly used as a drop-in substitute in legacy designs.
  • CY7C63001A --: Low-speed USB microcontroller offering equivalent USB interface capability and widely available as a functional replacement for legacy Philips USB parts.

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