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M74HCT244M1R from STMicroelectronics,ST Microelectronics

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M74HCT244M1R

Manufacturer: STMicroelectronics, ST

OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)

Partnumber Manufacturer Quantity Availability
M74HCT244M1R STMicroelectronics, ST 22236 In Stock

Description and Introduction

OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) The M74HCT244M1R is a high-speed CMOS octal buffer/line driver with 3-state outputs, manufactured by STMicroelectronics.  

### **Specifications:**  
- **Technology:** HCMOS  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Input Voltage (VI):** 0V to VCC  
- **Operating Temperature Range:** -40°C to +125°C  
- **High Noise Immunity:** Compliant with HCT family standards  
- **Low Power Consumption:** Typical ICC of 4µA  
- **Output Drive Capability:** 6mA at 4.5V  
- **Propagation Delay:** 13ns (typical) at VCC = 5V, CL = 15pF  
- **Package:** SO-20  

### **Descriptions and Features:**  
- **Octal Buffer/Line Driver:** Contains eight non-inverting buffers with 3-state outputs.  
- **3-State Outputs:** Allows multiple devices to share a common bus without interference.  
- **High-Speed Operation:** Optimized for high-speed signal transmission.  
- **Wide Operating Voltage:** Supports standard 5V TTL levels.  
- **Balanced Propagation Delays:** Ensures consistent signal timing.  
- **ESD Protection:** HBM > 2000V, MM > 200V.  

This device is commonly used in bus-oriented applications, signal buffering, and interfacing between different logic levels.  

(Source: STMicroelectronics datasheet)

Application Scenarios & Design Considerations

OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)

Alternative Part Number

  • CD74HCT244M --: Same HCT-series octal buffer/line driver with 3-state outputs in SOIC-20, pin-compatible and widely available.
  • 74HCT244D --: Direct logic-equivalent HCT244 octal buffer in SOIC-20 package, same function and pinout.
  • MC74HCT244ADWG --: HCT244 octal buffer/line driver with 3-state outputs in SOIC-20, electrically compatible substitute.
  • MC74HCT244ADWR2G --: HCT 244 octal buffer in SOIC, same logic family and function as the original.

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