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TC74VHC221AF from TOSHIBA

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TC74VHC221AF

Manufacturer: TOSHIBA, TOS

DUAL MONOSTABLE MULTIVIBRATOR. RETRIGGERBLE/NON-RETRIGGERBLE

Partnumber Manufacturer Quantity Availability
TC74VHC221AF TOSHIBA, TOS 6800 In Stock

Description and Introduction

DUAL MONOSTABLE MULTIVIBRATOR. RETRIGGERBLE/NON-RETRIGGERBLE The TC74VHC221AF is a dual monostable multivibrator IC manufactured by Toshiba. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Supply Voltage Range (VCC):** 2.0V to 5.5V  
- **High-Speed Operation:**  
  - tPLH, tPHL (propagation delay): 5.7ns (typical) at 5V  
- **Low Power Consumption:**  
  - ICC (quiescent supply current): 2μA (max) at 5.5V  
- **Input Compatibility:**  
  - 5V tolerant inputs  
  - CMOS and TTL compatible  
- **Output Drive Capability:**  
  - Balanced output drive (IOL/IOH = ±8mA at 5V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOP-16 (Small Outline Package)  

### **Descriptions:**  
- The TC74VHC221AF is a dual retriggerable monostable multivibrator with reset functionality.  
- Each multivibrator features independent trigger and reset inputs.  
- The output pulse width is determined by external timing components (resistor and capacitor).  
- Designed for high-speed CMOS applications with low power consumption.  

### **Features:**  
- **Dual Monostable Multivibrator:** Two independent circuits in one package.  
- **Retriggerable Operation:** Allows extension of the output pulse by reapplying a trigger.  
- **Reset Function:** Immediate termination of the output pulse via reset input.  
- **Wide Operating Voltage Range:** Supports 2V to 5.5V operation.  
- **Low Noise and High Immunity:** Compliant with CMOS technology standards.  
- **Pb-Free and RoHS Compliant:** Environmentally friendly packaging.  

This information is based on Toshiba's official datasheet for the TC74VHC221AF.

Application Scenarios & Design Considerations

DUAL MONOSTABLE MULTIVIBRATOR. RETRIGGERBLE/NON-RETRIGGERBLE

Alternative Part Number

  • SN74AHC221APW --: Monostable multivibrator in the AHC logic family with similar supply voltage range and function, widely available and pin-compatible in TSSOP package.
  • MC74VHC221ADTR2G --: Dual retriggerable monostable multivibrator from the VHC family, matching the original's logic family and electrical characteristics.
  • 74VHC221AMTCX --: VHC-series dual monostable multivibrator with comparable speed and drive, suitable drop-in functional replacement in TSSOP.

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