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SN74LS158NSR from TI,Texas Instruments

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SN74LS158NSR

Manufacturer: TI

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers

Partnumber Manufacturer Quantity Availability
SN74LS158NSR TI 3487 In Stock

Description and Introduction

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers The SN74LS158NSR is a quad 2-input multiplexer manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Multiplexer  
- **Number of Circuits:** 4  
- **Number of Inputs:** 2 per multiplexer  
- **Output Type:** Inverting  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package / Case:** SOP-16  
- **Mounting Type:** Surface Mount  
- **Propagation Delay Time:** 15ns (typical)  
- **High-Level Output Current:** -0.4mA  
- **Low-Level Output Current:** 8mA  

### **Descriptions:**  
The SN74LS158NSR is a high-speed Quad 2-Input Multiplexer that selects one of two data inputs (A or B) based on the select input (S). The outputs are inverted versions of the selected input. It is part of the LS (Low-Power Schottky) family, offering a good balance of speed and power efficiency.  

### **Features:**  
- **Inverting Outputs** – Provides complemented data output.  
- **Common Select Input** – Single select line controls all four multiplexers.  
- **Wide Operating Voltage** – Supports standard 5V TTL logic levels.  
- **Low Power Consumption** – Typical power dissipation of 32mW.  
- **High-Speed Operation** – Fast switching with 15ns propagation delay.  
- **Schottky-Clamped Inputs** – Improves noise immunity and speed.  

This device is commonly used in data routing, signal selection, and logic function implementation in digital systems.  

(Data sourced from Texas Instruments' official documentation.)

Application Scenarios & Design Considerations

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers

Alternative Part Number

  • DM74LS158N --: Same 74LS158 quad 2-to-1 multiplexer function in a DIP package, pin-compatible logic equivalent from a different series prefix.
  • 74LS158PC --: Direct functional equivalent quad 2-line to 1-line data selector/multiplexer with inverting outputs, different naming series.
  • MC74LS158N --: Equivalent 74LS158 multiplexer logic device, widely available second-source alternative with distinct part prefix.
  • SN74LS157N --: Quad 2-to-1 multiplexer from the same LS family with nearly identical logic function; can substitute where the inverted outputs of the 158 are not required.

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