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M74HC4538M1R

Manufacturer: ST

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

Partnumber Manufacturer Quantity Availability
M74HC4538M1R ST 5892 In Stock

Description and Introduction

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR The M74HC4538M1R is a dual retriggerable monostable multivibrator manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Technology:** High-Speed CMOS (HC)  
- **Supply Voltage Range:** 2V to 6V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Propagation Delay:** Typically 45 ns at 5V  
- **Output Current:** ±25 mA  
- **Package:** SO-16  

### **Descriptions:**  
- The M74HC4538M1R consists of two independent retriggerable monostable multivibrators.  
- Each multivibrator can be triggered by either a positive or negative edge.  
- Features a direct reset input for immediate termination of the output pulse.  

### **Features:**  
- **Retriggerable Operation:** Allows pulse width extension by retriggering.  
- **Edge-Triggered Inputs:** Can be triggered by rising or falling edges.  
- **Wide Operating Voltage Range:** 2V to 6V.  
- **Low Power Consumption:** Typical HC family power dissipation.  
- **High Noise Immunity:** Standard CMOS input levels.  
- **Pin-Compatible with 4538 in SO-16 package.**  

This information is based on ST's official datasheet for the M74HC4538M1R.

Application Scenarios & Design Considerations

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

Alternative Part Number

  • CD74HC4538M --: Same dual retriggerable monostable multivibrator function in the HC family, directly pin-compatible SOIC package.
  • MC74HC4538ADG --: Equivalent HC-series dual precision monostable multivibrator with matching logic thresholds and SOIC footprint.
  • SN74HC4538DR --: Functionally identical dual retriggerable monostable multivibrator, widely available and electrically compatible.
  • 74HC4538D,653 --: HC4538 dual retriggerable monostable in SOIC-16, same logic family and function, suitable drop-in substitute.

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