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SN74LS123J from MOTO,Motorola

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SN74LS123J

Manufacturer: MOTO, TI, TIX, MOTOROLA

Dual retriggerable monostable multivibrators

Partnumber Manufacturer Quantity Availability
SN74LS123J MOTO, TI, TIX, MOTOROLA 932 In Stock

Description and Introduction

Dual retriggerable monostable multivibrators The SN74LS123J is a dual retriggerable monostable multivibrator manufactured by Texas Instruments (TIX).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Number of Circuits:** 2 (Dual)  
- **Supply Voltage Range:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** Ceramic DIP (Dual In-Line Package)  
- **Pin Count:** 16  
- **Output Type:** Standard  
- **Trigger Type:** Positive and Negative Edge  
- **Propagation Delay:** Typically 35ns  
- **Power Dissipation:** 45mW (typical)  

### **Descriptions and Features:**  
- The SN74LS123J is a dual retriggerable monostable multivibrator designed for precision timing applications.  
- Each multivibrator features independent trigger and reset inputs for flexible control.  
- The device can be triggered by either a positive or negative edge, allowing versatile timing configurations.  
- The output pulse width is determined by external timing components (resistor and capacitor).  
- Retriggerable functionality allows the pulse to be extended by additional trigger inputs.  
- Direct reset capability terminates the output pulse prematurely when needed.  
- Suitable for applications such as pulse generation, delay circuits, and timing control.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official Texas Instruments documentation.

Application Scenarios & Design Considerations

Dual retriggerable monostable multivibrators

Alternative Part Number

  • 74LS123 --: Same dual retriggerable monostable multivibrator function and LS logic family, widely available from the original logic originator.
  • MC74LS123N --: Direct functional equivalent dual monostable multivibrator in LS family, from a Motorola-lineage supplier.
  • DM74LS123N --: Pin-compatible dual retriggerable monostable multivibrator with equivalent LS TTL characteristics.
  • SN74LS221N --: Dual monostable multivibrator with similar retriggerable timing function, usable as a functional substitute when timing specs allow.

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