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SN74ALS638AN from TI,Texas Instruments

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SN74ALS638AN

Manufacturer: TI

Octal Bus Transceivers

Partnumber Manufacturer Quantity Availability
SN74ALS638AN TI 40 In Stock

Description and Introduction

Octal Bus Transceivers The SN74ALS638AN is a 3-state octal bus transceiver and register manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver/Register  
- **Number of Bits:** 8  
- **Voltage Supply:** 4.5V to 5.5V  
- **Operating Temperature:** 0°C to 70°C  
- **Package Type:** PDIP (Plastic Dual-In-Line Package)  
- **Pin Count:** 20  
- **Output Type:** 3-State  
- **Logic Family:** ALS (Advanced Low-Power Schottky)  
- **Propagation Delay:** Typically 10ns  
- **Input/Output Compatibility:** TTL  

### **Descriptions:**  
The SN74ALS638AN combines an octal D-type flip-flop with a 3-state transceiver, allowing bidirectional data flow between buses. It features separate control inputs for data direction and output enable, making it suitable for bus-oriented applications.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by direction (DIR) and output enable (OE) inputs.  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **D-Type Flip-Flop Storage:** Latches data on the rising edge of the clock (CLK) input.  
- **Wide Operating Voltage Range:** Supports standard 5V TTL systems.  
- **High-Speed Operation:** Suitable for high-performance digital systems.  
- **Low Power Consumption:** ALS technology ensures reduced power usage compared to standard TTL.  

This device is commonly used in microprocessor systems, data communication, and other applications requiring bidirectional data transfer with storage capability.

Application Scenarios & Design Considerations

Octal Bus Transceivers

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