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M74HC643B1R from STM,ST Microelectronics

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M74HC643B1R

Manufacturer: STM

OCTAL BUS TRANSCEIVER (3-STATE)

Partnumber Manufacturer Quantity Availability
M74HC643B1R STM 620 In Stock

Description and Introduction

OCTAL BUS TRANSCEIVER (3-STATE) The M74HC643B1R is a high-speed CMOS octal bus transceiver and register manufactured by STMicroelectronics (STM).  

### **Specifications:**  
- **Technology:** High-Speed CMOS  
- **Supply Voltage:** 2V to 6V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Logic Family:** HC (High-Speed CMOS)  
- **Number of Bits:** 8 (Octal)  
- **Package Type:** SO-24 (Small Outline)  
- **Input/Output Type:** 3-State  

### **Descriptions:**  
- The M74HC643B1R is an octal bus transceiver with 3-state outputs, designed for bidirectional data communication between buses.  
- It integrates D-type flip-flops for data storage in both transmission and reception modes.  
- Suitable for interfacing between different voltage levels (within 2V to 6V range).  

### **Features:**  
- **Bidirectional Data Flow:** Allows data transfer in both directions.  
- **3-State Outputs:** Supports bus-oriented applications.  
- **Wide Operating Voltage Range:** 2V to 6V.  
- **High Noise Immunity:** CMOS technology ensures robustness.  
- **Low Power Consumption:** Optimized for power-sensitive applications.  
- **Latch-Up Performance:** Exceeds 250 mA per JESD 78 standard.  

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

Application Scenarios & Design Considerations

OCTAL BUS TRANSCEIVER (3-STATE)

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