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SN74AS638AN from TI,Texas Instruments

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SN74AS638AN

Manufacturer: TI

OCTAL BUS TRANSCEIVERS

Partnumber Manufacturer Quantity Availability
SN74AS638AN TI 66 In Stock

Description and Introduction

OCTAL BUS TRANSCEIVERS The SN74AS638AN 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:** 20-Pin PDIP (Plastic Dual In-Line Package)  
- **Output Type:** 3-State  
- **Propagation Delay:** Typically 8ns  
- **High-Level Output Current:** -15mA  
- **Low-Level Output Current:** 48mA  

### **Descriptions:**  
The SN74AS638AN is designed for asynchronous communication between data buses. It features bidirectional data flow controlled by direction (DIR) and output enable (OE) inputs. It also includes a storage register for data latching.  

### **Features:**  
- **Bidirectional Data Flow** (controlled by DIR input)  
- **3-State Outputs** (for bus-oriented applications)  
- **Storage Register** (for data latching)  
- **High-Speed Operation** (compatible with TTL levels)  
- **Wide Operating Voltage Range** (4.5V to 5.5V)  
- **ESD Protection** (exceeds 2000V per MIL-STD-883)  

This device is commonly used in bus interface, data buffering, and register applications.

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