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TC74ACT257FN from TOSHIBA

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TC74ACT257FN

Manufacturer: TOSHIBA

CMOS Digital Integrated Circuit Silicon Monolithic 2-Channel Multiplexer (3-state)

Partnumber Manufacturer Quantity Availability
TC74ACT257FN TOSHIBA 2500 In Stock

Description and Introduction

CMOS Digital Integrated Circuit Silicon Monolithic 2-Channel Multiplexer (3-state) The TC74ACT257FN is a quad 2-input multiplexer with 3-state outputs, manufactured by Toshiba. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Manufacturer:** Toshiba  
- **Logic Family:** ACT (Advanced CMOS Technology)  
- **Logic Type:** Multiplexer  
- **Number of Inputs:** 4 (Quad)  
- **Input Lines per Multiplexer:** 2  
- **Output Type:** 3-State  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **High-Level Output Current:** -24mA  
- **Low-Level Output Current:** 24mA  
- **Propagation Delay Time:** 8.5ns (typical at 5V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOP (Small Outline Package)  
- **Pin Count:** 16  

### **Description:**  
The TC74ACT257FN is a high-speed CMOS logic device that selects one of two data inputs (A or B) for each of its four multiplexers based on a common select input (S). The outputs are controlled by an active-low output enable (OE) pin, allowing them to be placed in a high-impedance state when disabled.  

### **Features:**  
- **High-Speed Operation:** Optimized for 5V systems with typical propagation delay of 8.5ns.  
- **Low Power Consumption:** CMOS technology ensures low power dissipation.  
- **3-State Outputs:** Allows bus-oriented applications.  
- **Wide Operating Voltage:** Supports 4.5V to 5.5V supply range.  
- **Balanced Propagation Delays:** Ensures consistent performance.  
- **Pin-Compatible with 74LS257:** Drop-in replacement for TTL counterparts.  
- **ESD Protection:** Improved electrostatic discharge tolerance.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

CMOS Digital Integrated Circuit Silicon Monolithic 2-Channel Multiplexer (3-state)

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