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TC74ACT138FN from TOS,TOSHIBA

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TC74ACT138FN

Manufacturer: TOS, TOSHIBA

CMOS Digital Integrated Circuit Silicon Monolithic 3-to-8 Line Decoder

Partnumber Manufacturer Quantity Availability
TC74ACT138FN TOS, TOSHIBA 3000 In Stock

Description and Introduction

CMOS Digital Integrated Circuit Silicon Monolithic 3-to-8 Line Decoder The TC74ACT138FN is a 3-to-8 line decoder/demultiplexer manufactured by Toshiba. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Logic Family:** ACT (Advanced CMOS Technology)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Input Voltage Range:** 0V to VCC  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOP-16 (Small Outline Package, 16-pin)  
- **Propagation Delay:** 8.5ns (typical at 5V)  
- **Output Current:** ±24mA  
- **Low Power Consumption:** 4μA (max) at 5.5V  

### **Descriptions:**  
- The TC74ACT138FN is a high-speed CMOS logic device that decodes three binary address inputs (A0, A1, A2) into one of eight mutually exclusive outputs (Y0-Y7).  
- It features three enable inputs (two active LOW and one active HIGH) for flexible control.  
- Suitable for memory address decoding and data routing applications.  

### **Features:**  
- **3-to-8 Line Decoding:** Converts 3-bit binary input to 8-line output.  
- **Demultiplexing Capability:** Can function as a 1-to-8 demultiplexer.  
- **High-Speed Operation:** Optimized for fast switching performance.  
- **Low Power Consumption:** CMOS technology ensures low power dissipation.  
- **Wide Operating Voltage:** Supports 4.5V to 5.5V operation.  
- **Schmitt Trigger Inputs:** Provides noise immunity on control inputs.  
- **Compatible with TTL Levels:** Inputs are TTL-compatible.  

This device is commonly used in digital systems for address decoding, data routing, and signal demultiplexing.

Application Scenarios & Design Considerations

CMOS Digital Integrated Circuit Silicon Monolithic 3-to-8 Line Decoder

Alternative Part Number

  • SN74ACT138D --: Same 3-to-8 line decoder/demultiplexer function in the ACT logic family, widely available and pin-compatible in SOIC package.
  • MC74ACT138ADR2G --: Equivalent ACT-series 3-to-8 decoder with matching function and speed, offered in SOIC and commonly stocked.
  • CD74ACT138E --: ACT-family 3-to-8 decoder/demultiplexer with identical logic function; DIP version useful for through-hole replacement.
  • MC74ACT138DR2G --: Equivalent ACT-series 3-to-8 decoder with identical function and pinout in SOIC, good second-source option.

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