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SN74ALS645ANSR from TI,Texas Instruments

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SN74ALS645ANSR

Manufacturer: TI

Octal Bus Transceivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74ALS645ANSR TI 482 In Stock

Description and Introduction

Octal Bus Transceivers With 3-State Outputs The SN74ALS645ANSR is an octal bus transceiver manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver  
- **Technology:** Advanced Low-Power Schottky (ALS)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** SOIC (20-pin)  
- **Input/Output Type:** 3-State  
- **Data Rate:** Up to 24 MHz  
- **Propagation Delay:** Typically 10 ns  
- **Current - Output High, Low:** ±24mA, ±24mA  

### **Descriptions:**  
- The SN74ALS645ANSR is designed for bidirectional data transfer between buses.  
- It features non-inverting outputs and 3-state buffers for bus isolation.  
- Direction control (DIR) determines data flow (A to B or B to A).  
- Output enable (OE) allows high-impedance state for bus sharing.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by DIR pin.  
- **3-State Outputs:** Allows bus isolation when disabled.  
- **Wide Operating Voltage:** Supports standard 5V logic levels.  
- **High Drive Capability:** ±24mA output current.  
- **Low Power Consumption:** ALS technology reduces power usage.  
- **ESD Protection:** Exceeds 2000V per JESD 22.  

For detailed electrical characteristics and timing diagrams, refer to the official TI datasheet.

Application Scenarios & Design Considerations

Octal Bus Transceivers With 3-State Outputs

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