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TC74VHC139FT from TOS,TOSHIBA

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TC74VHC139FT

Manufacturer: TOS, TOSHIBA, TOSH

DUAL 2-TO-S LINE DECODER

Partnumber Manufacturer Quantity Availability
TC74VHC139FT TOS, TOSHIBA, TOSH 8498 In Stock

Description and Introduction

DUAL 2-TO-S LINE DECODER The TC74VHC139FT is a dual 2-to-4 line decoder/demultiplexer manufactured by Toshiba. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Supply Voltage Range (VCC):** 2.0V to 5.5V  
- **High-Speed Operation:** tpd = 4.3 ns (typical) at 5V  
- **Low Power Consumption:** ICC = 2 μA (max) at Ta = 25°C  
- **Input Voltage Levels:**  
  - VIH (High-level input voltage): 2.0V (min) at VCC = 2.0V  
  - VIL (Low-level input voltage): 0.8V (max) at VCC = 2.0V  
- **Output Voltage Levels:**  
  - VOH (High-level output voltage): VCC - 0.2V (min) at IOH = -4 mA  
  - VOL (Low-level output voltage): 0.2V (max) at IOL = 4 mA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** TSSOP-16  

### **Descriptions:**  
- The TC74VHC139FT consists of two independent 2-to-4 decoders with common active-low enable inputs.  
- Each decoder accepts two binary-weighted inputs (A0, A1) and provides four mutually exclusive active-low outputs (Y0 to Y3).  
- When the enable input (E) is high, all outputs are forced high.  
- Suitable for high-speed CMOS applications with low power consumption.  

### **Features:**  
- **CMOS Technology:** Ensures low power dissipation.  
- **Balanced Propagation Delays:** tPLH ≈ tPHL for reliable performance.  
- **Wide Operating Voltage Range:** Compatible with 3.3V and 5V systems.  
- **High Noise Immunity:** Typical VNH = VCC × 0.45  
- **Pb-Free Package:** Compliant with RoHS standards.  

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

Application Scenarios & Design Considerations

DUAL 2-TO-S LINE DECODER

Alternative Part Number

  • SN74AHC139PWR --: Dual 2-to-4 line decoder/demultiplexer with the same function and pinout, widely available and a direct functional replacement.
  • MC74VHC139DTR2G --: VHC-family dual 2-to-4 decoder with matching logic levels and pin configuration, suitable drop-in substitute.
  • 74VHC139MTCX --: Same VHC logic family dual decoder/demultiplexer in TSSOP package, electrically compatible alternative.
  • 74AHC139PW --: Equivalent dual 2-to-4 decoder in AHC family with matching function and TSSOP footprint, good second-source option.

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