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SN74ALS639ADW from TI,Texas Instruments

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SN74ALS639ADW

Manufacturer: TI

Octal Bus Transceivers

Partnumber Manufacturer Quantity Availability
SN74ALS639ADW TI 900 In Stock

Description and Introduction

Octal Bus Transceivers The SN74ALS639ADW is a bus transceiver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Bus Transceiver  
- **Number of Bits:** 8  
- **Voltage Supply:** 4.5V to 5.5V  
- **Operating Temperature:** 0°C to 70°C  
- **Package / Case:** SOIC-20 (DW)  
- **Output Type:** 3-State  
- **Mounting Type:** Surface Mount  
- **Propagation Delay Time:** 12ns (max)  
- **High-Level Output Current:** -15mA  
- **Low-Level Output Current:** 24mA  

### **Descriptions:**  
The SN74ALS639ADW is an 8-bit bus transceiver designed for asynchronous communication between data buses. It features bidirectional data flow and 3-state outputs for bus-oriented applications.  

### **Features:**  
- **Bidirectional Data Flow** (A to B or B to A)  
- **3-State Outputs** for bus sharing  
- **Wide Operating Voltage Range** (4.5V to 5.5V)  
- **High-Current Outputs** for driving bus lines  
- **ESD Protection** on all inputs and outputs  
- **Standard Pinout** for easy integration  

This device is commonly used in microprocessor and microcontroller systems for data transfer between buses.

Application Scenarios & Design Considerations

Octal Bus Transceivers

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