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SN74ALS645AN from TEXAS

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SN74ALS645AN

Manufacturer: TEXAS

Octal Bus Transceivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74ALS645AN TEXAS 40 In Stock

Description and Introduction

Octal Bus Transceivers With 3-State Outputs The SN74ALS645AN is an octal bus transceiver manufactured by Texas Instruments. Below are its specifications, descriptions, and features:

### **Specifications:**
- **Logic Family:** ALS (Advanced Low-Power Schottky)  
- **Function:** Octal Bus Transceiver with 3-State Outputs  
- **Number of Channels:** 8 (Octal)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package Type:** PDIP (Plastic Dual In-Line Package)  
- **Pin Count:** 20  
- **Output Type:** 3-State  
- **Propagation Delay:** Typically 9ns  
- **High-Level Output Current:** -15mA  
- **Low-Level Output Current:** 24mA  

### **Descriptions:**
- The SN74ALS645AN is a bidirectional octal bus transceiver designed for asynchronous communication between data buses.  
- It features separate control inputs for direction (DIR) and output enable (OE), allowing flexible data flow control.  
- The 3-state outputs permit multiple devices to share a common bus without interference.  

### **Features:**
- **Bidirectional Data Flow:** Controlled by the DIR input.  
- **3-State Outputs:** Allows bus sharing in multi-device systems.  
- **High-Speed Operation:** Optimized for low-power Schottky performance.  
- **Wide Operating Voltage:** Supports standard TTL levels.  
- **ESD Protection:** Provides improved reliability.  
- **Industrial Standard Pinout:** Compatible with other ALS series devices.  

This device is commonly used in data communication systems, microprocessor interfaces, and bus-oriented applications.  

(Note: Always refer to the official datasheet for detailed electrical characteristics and application guidelines.)

Application Scenarios & Design Considerations

Octal Bus Transceivers With 3-State Outputs

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