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DM74ALS640AN from FAIRCHILD,Fairchild Semiconductor

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15.625ms

DM74ALS640AN

Manufacturer: FAIRCHILD

Inverting Octal Bus Transceiver

Partnumber Manufacturer Quantity Availability
DM74ALS640AN FAIRCHILD 258 In Stock

Description and Introduction

Inverting Octal Bus Transceiver The DM74ALS640AN is a 3-STATE Octal Bus Transceiver manufactured by Fairchild Semiconductor. Here are its key specifications:

- **Logic Family**: ALS (Advanced Low-Power Schottky)  
- **Function**: Octal Bus Transceiver (bidirectional data flow)  
- **Voltage Supply**: 4.5V to 5.5V (standard 5V operation)  
- **Operating Temperature Range**: 0°C to +70°C (commercial grade)  
- **Input/Output Compatibility**: TTL (Transistor-Transistor Logic)  
- **Output Type**: 3-STATE (high-impedance state for bus isolation)  
- **Package**: 20-pin DIP (Dual In-line Package)  
- **Direction Control**: Separate DIR (Direction) input for controlling data flow  
- **Speed**: Typical propagation delay of 10ns (varies by condition)  
- **Current Ratings**:  
  - **High-Level Output Current**: -15mA  
  - **Low-Level Output Current**: 24mA  

For exact timing, power consumption, or other detailed parameters, refer to the official Fairchild datasheet.

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