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SN74LS122NSR from TEXAS

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SN74LS122NSR

Manufacturer: TEXAS, TI

Retriggerable monostable multivibrator
Partnumber Manufacturer Quantity Availability
SN74LS122NSR TEXAS, TI 562 In Stock

Description and Introduction

Retriggerable monostable multivibrator The SN74LS122NSR is a monostable multivibrator (one-shot) manufactured by Texas Instruments. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Texas Instruments  
- **Category:** Integrated Circuits (ICs)  
- **Type:** Monostable Multivibrator  
- **Series:** 74LS  
- **Package / Case:** 16-SOIC (0.209", 5.30mm Width)  
- **Operating Temperature:** 0°C to 70°C  
- **Voltage Supply:** 4.75V to 5.25V  
- **Output Type:** Standard  
- **Trigger Type:** Negative, Positive Edge  
- **Number of Circuits:** 1  
- **Propagation Delay Time:** 45 ns (Typical)  
- **Current - Output High, Low:** 400µA, 8mA  

### **Descriptions:**  
- The SN74LS122NSR is a retriggerable/resettable monostable multivibrator designed for precision timing applications.  
- It features both positive and negative edge triggering, along with an internal timing resistor for simplified operation.  
- The device can be retriggered or reset during operation, allowing flexible pulse-width control.  

### **Features:**  
- **Retriggerable/Resettable Operation:** Allows pulse-width extension or early termination.  
- **Internal Timing Resistor:** Eliminates the need for an external resistor in basic applications.  
- **Wide Pulse Width Range:** Adjustable via external components.  
- **Schmitt-Trigger Inputs:** Provides noise immunity on input signals.  
- **Standard Output Drive:** Compatible with TTL logic levels.  

This information is based solely on the device's datasheet and technical documentation.

Application Scenarios & Design Considerations

Retriggerable monostable multivibrator

Alternative Part Number

  • MC74LS122DR2G --: Same 74LS122 retriggerable monostable multivibrator function in SOIC-16 package, direct functional equivalent from a different series prefix.
  • 74LS122D --: Equivalent 74LS122 monostable multivibrator with identical logic function and SOIC-16 footprint, different manufacturer naming.
  • CD74HC122E --: Pin-compatible retriggerable monostable multivibrator from the HC series; verify supply voltage and timing RC compatibility before substitution.
  • CD74HC123E --: Monostable multivibrator in the same function class, widely available and pin-compatible in many designs; check supply voltage and timing range.
  • MC14538BCP --: Dual precision monostable multivibrator offering similar retriggerable timing function, commonly used as a cross-series substitute.
  • 74LS122N --: Equivalent LS-series retriggerable monostable multivibrator from a different vendor, suitable when the SOIC package is not required.

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