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SN74ALS640BN from TI.,Texas Instruments

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SN74ALS640BN

Manufacturer: TI.

Octal Bus Transceivers

Partnumber Manufacturer Quantity Availability
SN74ALS640BN TI. 52 In Stock

Description and Introduction

Octal Bus Transceivers The SN74ALS640BN is a bidirectional transceiver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** ALS (Advanced Low-Power Schottky)  
- **Function:** Octal Bus Transceiver with 3-State Outputs  
- **Number of Channels:** 8  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Input Voltage (VI):** 0V to VCC  
- **Output Voltage (VO):** 0V to VCC  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** PDIP-20 (Plastic Dual In-Line Package)  
- **Output Type:** 3-State  
- **Propagation Delay:** Typically 10ns  
- **Current – Output High, Low:** ±24mA, ±24mA  

### **Descriptions:**  
The SN74ALS640BN is an octal bus transceiver designed for asynchronous two-way communication between data buses. It features separate control inputs for direction (DIR) and output enable (OE), allowing flexible data flow management.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by the DIR pin  
- **3-State Outputs:** Allows multiple devices to share a common bus  
- **High-Current Outputs:** Capable of driving heavily loaded buses  
- **Low Power Consumption:** ALS technology reduces power usage  
- **ESD Protection:** Exceeds 2000V per JESD 22-A114  

This device is commonly used in bus-oriented systems requiring bidirectional data transfer.  

(Note: Always refer to the official datasheet for detailed specifications and application guidelines.)

Application Scenarios & Design Considerations

Octal Bus Transceivers

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