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SN74HCT14DR from TI/BB,Texas Instruments

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SN74HCT14DR

Manufacturer: TI/BB

Hex Schmitt-Trigger Inverters

Partnumber Manufacturer Quantity Availability
SN74HCT14DR TI/BB 2500 In Stock

Description and Introduction

Hex Schmitt-Trigger Inverters The SN74HCT14DR is a hex Schmitt-trigger inverter manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Logic Type:** Inverter  
- **Number of Circuits:** 6  
- **Input Type:** Schmitt Trigger  
- **Output Type:** Push-Pull  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **High-Level Input Voltage (VIH):** 2V (min)  
- **Low-Level Input Voltage (VIL):** 0.8V (max)  
- **High-Level Output Voltage (VOH):** 4.4V (min) at IOH = -4mA  
- **Low-Level Output Voltage (VOL):** 0.33V (max) at IOL = 4mA  
- **Propagation Delay (tpd):** 18ns (typical) at 5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-14  

### **Descriptions:**  
- Hex inverting Schmitt-trigger logic gate  
- Converts slowly changing input signals to sharply defined outputs  
- Hysteresis (typically 0.8V) improves noise immunity  

### **Features:**  
- **Schmitt-Trigger Inputs:** Noise filtering and signal conditioning  
- **Wide Operating Voltage:** 4.5V to 5.5V  
- **Balanced Propagation Delays:** Ensures stable performance  
- **Low Power Consumption:** CMOS technology  
- **High Noise Immunity:** Due to hysteresis  
- **Latch-Up Performance:** Exceeds 250mA per JESD 17  

This device is commonly used in signal conditioning, debouncing, and waveform shaping applications.

Application Scenarios & Design Considerations

Hex Schmitt-Trigger Inverters

Alternative Part Number

  • MC74HCT14ADR2G --: Hex Schmitt-trigger inverter in the same HCT logic family with matching 4.5-5.5V supply and pinout, available in SOIC-14, making it a direct functional drop-in replacement.
  • CD74HCT14M --: Same manufacturer's HCT Schmitt-trigger hex inverter in SOIC-14, identical logic function and voltage range, though the CD series naming differs from the SN series.
  • 74HCT14D,653 --: Standard 74HCT14 hex Schmitt-trigger inverter in SOIC-14 with equivalent electrical characteristics and pinout, offering a second-source option from a different vendor.

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