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M74HCT244 from ST,ST Microelectronics

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M74HCT244

Manufacturer: ST

HCT240: INVERTED

Partnumber Manufacturer Quantity Availability
M74HCT244 ST 460 In Stock

Description and Introduction

HCT240: INVERTED The M74HCT244 is a high-speed CMOS octal buffer/line driver with 3-state outputs, manufactured by STMicroelectronics.  

### **Key Specifications:**  
- **Logic Family:** HCT (High-speed CMOS with TTL compatibility)  
- **Number of Channels:** 8 (Octal)  
- **Input Voltage (VCC):** 4.5V to 5.5V  
- **Output Current (High/Low):** ±6mA  
- **Propagation Delay (tPD):** Typically 13ns at 5V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** DIP-20, SO-20, TSSOP-20  

### **Descriptions and Features:**  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **TTL-Compatible Inputs:** Works with both CMOS and TTL logic levels.  
- **High Noise Immunity:** Typical noise margin of 0.7V at 5V.  
- **Low Power Consumption:** CMOS technology ensures low static power dissipation.  
- **Buffered Inputs and Outputs:** Improves signal integrity.  
- **ESD Protection:** HBM > 2000V, MM > 200V.  

The M74HCT244 is commonly used in bus driving, signal buffering, and level-shifting applications.

Application Scenarios & Design Considerations

HCT240: INVERTED
Partnumber Manufacturer Quantity Availability
M74HCT244 STMicroelectronics 460 In Stock

Description and Introduction

HCT240: INVERTED The M74HCT244 is an octal buffer/line driver with 3-state outputs, manufactured by STMicroelectronics. It is part of the HCT family, which combines high-speed CMOS technology with TTL compatibility.  

### **Key Specifications:**  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Input Voltage (VI):** 0V to VCC  
- **High-Level Input Voltage (VIH):** 2V (min)  
- **Low-Level Input Voltage (VIL):** 0.8V (max)  
- **Output Current (IO):** ±6mA  
- **Propagation Delay (tpd):** 13ns (typical at VCC = 5V, CL = 50pF)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** DIP-20, SO-20  

### **Features:**  
- **Octal Buffer/Line Driver:** 8 non-inverting buffers with 3-state outputs.  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **TTL-Compatible Inputs:** Works with TTL logic levels.  
- **High Noise Immunity:** Typical CMOS noise margin.  
- **Low Power Consumption:** Balanced with high-speed performance.  
- **ESD Protection:** HBM > 2000V, MM > 200V.  

### **Applications:**  
- Bus driving and buffering in digital systems.  
- Memory address driving.  
- Data transmission control.  

For detailed electrical characteristics and timing diagrams, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

HCT240: INVERTED

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