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SN74ALS640B

Octal Bus Transceivers

Partnumber Manufacturer Quantity Availability
SN74ALS640B 2000 In Stock

Description and Introduction

Octal Bus Transceivers The SN74ALS640B is a bus transceiver manufactured by Texas Instruments. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
Texas Instruments  

### **Description:**  
The SN74ALS640B is an octal bus transceiver with 3-state outputs. It is designed for asynchronous communication between data buses and provides bidirectional data transfer between two buses.  

### **Key Features:**  
- **Logic Type:** Octal Bus Transceiver  
- **Output Type:** 3-State  
- **Voltage Supply Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Number of Bits:** 8  
- **High-Level Output Current:** -15mA  
- **Low-Level Output Current:** 24mA  
- **Propagation Delay Time:** 10ns (typical)  
- **Package Type:** PDIP (Plastic Dual In-Line Package), SOIC (Small Outline Integrated Circuit)  

### **Functionality:**  
- Bidirectional data flow controlled by direction (DIR) and output enable (OE) inputs  
- Non-inverting data path  

### **Applications:**  
- Data bus interfacing  
- Bidirectional data transfer in microprocessor systems  
- Bus isolation  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and timing diagrams, refer to the official Texas Instruments documentation.

Application Scenarios & Design Considerations

Octal Bus Transceivers

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