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SN75LBC179AD from TI,Texas Instruments

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SN75LBC179AD

Manufacturer: TI, Texas

Low-Power Differential Line Driver and Receiver Pairs

Partnumber Manufacturer Quantity Availability
SN75LBC179AD TI, Texas 122 In Stock

Description and Introduction

Low-Power Differential Line Driver and Receiver Pairs The **SN75LBC179AD** is a differential bus transceiver manufactured by **Texas Instruments**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Type:** Differential Bus Transceiver  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to **10 Mbps**  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Package Type:** SOIC-8  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Bus Pins Protection:** ±12V Fault Protection  

### **Descriptions:**
- Designed for **RS-485** and **RS-422** communication applications.  
- Provides **half-duplex** communication.  
- Features **thermal shutdown** protection to prevent damage from excessive power dissipation.  
- Includes **receiver fail-safe** design to ensure a logic-high output when inputs are open or shorted.  

### **Features:**
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **Wide Common-Mode Voltage Range:** Allows for noise rejection in electrically noisy environments.  
- **Driver Short-Circuit Protection:** Protects against output short circuits.  
- **High Input Impedance:** Supports up to **32 unit loads** on the bus.  
- **3-State Outputs:** Enables bus sharing in multi-drop networks.  

This device is commonly used in industrial control, automotive, and networking applications requiring robust differential signaling.

Application Scenarios & Design Considerations

Low-Power Differential Line Driver and Receiver Pairs

Alternative Part Number

  • MAX3079EESD+ --: Pin-compatible RS-485/RS-422 transceiver in SOIC-14 with similar half-duplex operation and supply range, widely used as a drop-in alternative to the SN75LBC179 family.
  • ADM485ARZ --: Industry-standard low-power RS-485 transceiver in SOIC-8/14 footprint with comparable data rate and ESD performance, suitable for replacing the TI device in most designs.
  • ISL8485EIBZ --: Robust RS-485/RS-422 transceiver with similar electrical characteristics and SOIC package, offering good availability as a second-source option.
  • MAX485ESA+ --: Industry-standard RS-485/RS-422 transceiver in an 8-pin SOIC package, functionally similar to the SN75LBC179 differential bus transceiver and widely available as a drop-in style alternative.
  • DS485N --: Low-power RS-485/RS-422 transceiver from a different TI series, offering comparable differential bus drive capability and a familiar pinout for similar applications.

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