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SN74HC126DB from TI,Texas Instruments

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SN74HC126DB

Manufacturer: TI

QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS

Partnumber Manufacturer Quantity Availability
SN74HC126DB TI 3000 In Stock

Description and Introduction

QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS The SN74HC126DB is a quad bus buffer gate manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Buffer/Driver  
- **Number of Channels:** 4  
- **Output Type:** 3-State  
- **Supply Voltage Range:** 2V to 6V  
- **High-Level Output Current:** -7.8 mA  
- **Low-Level Output Current:** 7.8 mA  
- **Propagation Delay Time:** 9 ns at 5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package / Case:** SSOP-14  
- **Mounting Type:** Surface Mount  

### **Descriptions:**  
The SN74HC126DB features four independent buffer gates with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is low.  

### **Features:**  
- 3-State outputs for bus-oriented applications  
- Wide operating voltage range (2V to 6V)  
- High-current outputs for driving heavy loads  
- Balanced propagation delays  
- Low power consumption  
- ESD protection exceeds 2000V per JESD 22  

This device is commonly used in bus interface, signal buffering, and level-shifting applications.

Application Scenarios & Design Considerations

QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS

Alternative Part Number

  • MC74HC126ADG --: Quad buffer with 3-state outputs in the same HC logic family, pin-compatible SOIC-14 package, widely available and directly interchangeable.
  • 74HC126D,653 --: Equivalent quad 3-state buffer in HC family with matching function and SOIC-14 footprint, good second-source option.
  • CD74HC126M --: Same-function quad 3-state buffer from TI's CD74HC series, different naming series, suitable drop-in alternative with similar electrical characteristics.

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