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ISP1123D

Universal Serial Bus compound hub

Partnumber Manufacturer Quantity Availability
ISP1123D 4000 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.
Partnumber Manufacturer Quantity Availability
ISP1123D NXPLIPS 16696 In Stock

Description and Introduction

Universal Serial Bus compound hub The part **ISP1123D** is manufactured by **NXP Semiconductors (NXP LIPS)**. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** NXP Semiconductors (NXP LIPS)  
- **Type:** USB interface IC  
- **Function:** USB full-speed hub controller  
- **Operating Voltage:** 3.3V  
- **Interface:** USB 2.0 Full-Speed (12 Mbps)  
- **Number of Ports:** 2 downstream ports  
- **Package:** SOIC (Small Outline Integrated Circuit)  
- **Compliance:** USB-IF certified  

### **Descriptions:**  
- The **ISP1123D** is a USB hub controller designed for embedded applications requiring USB connectivity.  
- It supports **full-speed (12 Mbps)** USB data transfer rates.  
- The IC integrates necessary termination resistors and transceivers, reducing external component count.  

### **Features:**  
- **Integrated USB transceivers** for both upstream and downstream ports.  
- **Built-in 3.3V voltage regulator** for power management.  
- **Supports bus-powered and self-powered modes.**  
- **Low-power consumption** suitable for portable devices.  
- **Overcurrent detection** on downstream ports.  
- **Plug-and-play compatibility** with USB hosts.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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 USB interface device and widely available as a drop-in style replacement.
  • PCF8574T --: Classic I2C 8-bit I/O expander in SOIC, pin-compatible style alternative with simple register interface, suitable for similar bus-interface applications.
  • TUSB2046B --: USB hub controller offering comparable USB interface functionality, usable as a cross-manufacturer alternative when the original NXP part is unavailable.
Partnumber Manufacturer Quantity Availability
ISP1123D PHILIPS 1000 In Stock

Description and Introduction

Universal Serial Bus compound hub The part **ISP1123D** is manufactured by **PHILIPS**. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** PHILIPS  
- **Part Number:** ISP1123D  
- **Type:** Integrated Circuit (IC)  

### **Descriptions:**  
- The ISP1123D is a USB interface IC designed for peripheral device applications.  
- It supports USB communication protocols and is commonly used in embedded systems for USB connectivity.  

### **Features:**  
- **USB Compliance:** Compliant with USB 1.1 specifications.  
- **Interface:** Supports full-speed (12 Mbps) USB data transfer.  
- **Package:** Typically available in a surface-mount package (exact package type may vary).  
- **Applications:** Used in USB-enabled devices such as peripherals, controllers, and embedded systems.  

For detailed datasheets or additional technical parameters, refer to official PHILIPS documentation or authorized distributors.

Application Scenarios & Design Considerations

Universal Serial Bus compound hub

Alternative Part Number

  • 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.
  • TUSB2046B --: USB hub/interface controller with similar USB signaling support, suitable as an alternative when the original ISP1123D is unavailable.

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