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IDT74FCT257CTSO from IDT

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IDT74FCT257CTSO

Manufacturer: IDT

FAST CMOS QUAD 2-INPUT MULTIPLEXER

Partnumber Manufacturer Quantity Availability
IDT74FCT257CTSO IDT 4316 In Stock

Description and Introduction

FAST CMOS QUAD 2-INPUT MULTIPLEXER The IDT74FCT257CTSO is a quad 2-input multiplexer with 3-state outputs, manufactured by Integrated Device Technology (IDT).  

### **Key Specifications:**  
- **Logic Type:** Multiplexer  
- **Number of Circuits:** 4  
- **Number of Inputs per Multiplexer:** 2  
- **Output Type:** 3-State  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOIC (Small Outline Integrated Circuit)  
- **Propagation Delay:** Typically 4.5ns (varies with conditions)  
- **High-Speed CMOS Technology:** Low power consumption with TTL-compatible inputs/outputs  

### **Features:**  
- **3-State Outputs:** Allows multiple devices to share a common bus  
- **TTL-Compatible Inputs and Outputs:** Ensures compatibility with TTL logic levels  
- **Low Power Consumption:** Optimized for high-speed CMOS applications  
- **High Noise Immunity:** Reduces susceptibility to noise in digital circuits  
- **Wide Operating Voltage Range:** Supports standard 5V logic systems  

### **Applications:**  
- Data routing and selection in digital systems  
- Bus-oriented systems requiring multiplexing  
- Memory address decoding  
- General-purpose logic functions  

This device is designed for high-speed, low-power digital logic applications where efficient data selection is required.

Application Scenarios & Design Considerations

FAST CMOS QUAD 2-INPUT MULTIPLEXER

Alternative Part Number

  • CY74FCT257CTSO --: Same FCT257 function (quad 2-input multiplexer with 3-state outputs) in the same SOIC package and speed grade, from a vendor that acquired IDT's FCT logic line, so pinout and timing are directly compatible.
  • 74FCT257CTSO --: Renesas offers the FCT257 in SOIC with matching C-speed grade and identical pinout, providing a drop-in functional replacement for the IDT part.
  • 74ACT257SC --: ACT257 is a functionally equivalent quad 2-input multiplexer with 3-state outputs in SOIC; TTL-compatible inputs and similar propagation delay make it a viable alternative when FCT sourcing is limited.
  • MC74F257ADR2 --: Quad 2-input multiplexer with 3-state outputs in SOIC, functionally equivalent to the FCT257 with compatible pinout and logic levels.

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