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SN74ALS642A-1 from TI,Texas Instruments

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SN74ALS642A-1

Manufacturer: TI

OCTAL BUS TRANSCEIVER O.C. 20-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
SN74ALS642A-1,SN74ALS642A1 TI 10 In Stock

Description and Introduction

OCTAL BUS TRANSCEIVER O.C. 20-SOIC 0 to 70 The SN74ALS642A-1 is a manufacturer by Texas Instruments (TI). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Category:** Logic - Buffers, Drivers, Receivers, Transceivers  
- **Series:** 74ALS  
- **Package:** Tube  
- **Part Status:** Obsolete  
- **Number of Bits per Element:** 8  
- **Logic Type:** Transceiver, Non-Inverting  
- **Output Type:** 3-State  
- **Voltage - Supply:** 4.5V ~ 5.5V  
- **Operating Temperature:** 0°C ~ 70°C  
- **Mounting Type:** Through Hole  
- **Package / Case:** 20-DIP (0.300", 7.62mm)  

### **Descriptions:**
The SN74ALS642A-1 is an octal bus transceiver designed for asynchronous communication between data buses. It features non-inverting 3-state outputs and is part of the advanced low-power Schottky (ALS) family. It is commonly used in bus-oriented applications where bidirectional data transfer is required.

### **Features:**
- **Octal Bus Transceiver:** Supports 8-bit bidirectional data transfer.  
- **Non-Inverting Logic:** Maintains signal polarity.  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **Wide Operating Voltage:** 4.5V to 5.5V supply range.  
- **High-Speed Operation:** Suitable for high-performance applications.  
- **Standard 20-Pin DIP Package:** Through-hole mounting for easy prototyping.  

This part is now obsolete and may not be available for new designs.

Application Scenarios & Design Considerations

OCTAL BUS TRANSCEIVER O.C. 20-SOIC 0 to 70

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