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M74HC243M1R from ST,ST Microelectronics

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M74HC243M1R

Manufacturer: ST

QUAD BUS TRANSCEIVER (3-STATE)

Partnumber Manufacturer Quantity Availability
M74HC243M1R ST 124 In Stock

Description and Introduction

QUAD BUS TRANSCEIVER (3-STATE) The M74HC243M1R is a high-speed CMOS quad bus transceiver manufactured by STMicroelectronics. Here are the key specifications, descriptions, and features:

### **Specifications:**  
- **Logic Family:** HC (High-Speed CMOS)  
- **Number of Channels:** 4 (Quad)  
- **Supply Voltage Range:** 2V to 6V  
- **High-Level Input Voltage (Min):** 2V  
- **Low-Level Input Voltage (Max):** 0.8V  
- **High-Level Output Current:** -5.2mA  
- **Low-Level Output Current:** 5.2mA  
- **Propagation Delay:** 14ns (typical at 5V)  
- **Operating Temperature Range:** -55°C to +125°C  
- **Package:** SO-20  

### **Descriptions:**  
- The M74HC243M1R is a bidirectional bus transceiver designed for asynchronous communication between data buses.  
- It features non-inverting 3-state outputs and is compatible with TTL levels.  
- The device is commonly used in data transmission applications where direction control is required.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by DIR (Direction) input.  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **High Noise Immunity:** Typical CMOS noise margin.  
- **Low Power Consumption:** Suitable for battery-operated devices.  
- **Wide Operating Voltage Range:** 2V to 6V.  
- **TTL-Compatible Inputs:** Ensures compatibility with TTL logic levels.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official STMicroelectronics documentation.

Application Scenarios & Design Considerations

QUAD BUS TRANSCEIVER (3-STATE)

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