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SN74ALS620A from TI,Texas Instruments

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SN74ALS620A

Manufacturer: TI

Octal Bus Transceivers

Partnumber Manufacturer Quantity Availability
SN74ALS620A TI 40 In Stock

Description and Introduction

Octal Bus Transceivers The SN74ALS620A is a 3-state octal bus transceiver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver  
- **Technology:** Advanced Low-Power Schottky (ALS)  
- **Voltage Supply Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Input/Output Compatibility:** TTL  
- **Number of Channels:** 8 (Octal)  
- **Output Type:** 3-State  
- **Propagation Delay:** Typically 9ns (max 15ns)  
- **High-Level Output Current:** -15mA  
- **Low-Level Output Current:** 24mA  

### **Descriptions:**  
The SN74ALS620A is designed for asynchronous communication between data buses. It allows bidirectional data flow between two buses (A and B) with separate output enable (OE) and direction control (DIR) inputs.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by DIR input  
- **3-State Outputs:** Allows bus isolation  
- **High-Speed Operation:** Optimized for bus-oriented applications  
- **Low Power Consumption:** ALS technology reduces power dissipation  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with TTL logic levels  
- **ESD Protection:** Helps prevent damage from electrostatic discharge  

For detailed electrical characteristics and timing diagrams, refer to the official TI datasheet.

Application Scenarios & Design Considerations

Octal Bus Transceivers

Alternative Part Number

  • 74F620 --: Octal bus transceiver with the same function and pinout, using a faster bipolar process; a common drop-in functional replacement for the ALS620A.
  • MC74ACT620 --: Octal bus transceiver in the ACT family with compatible logic function and pinout, offering CMOS-level inputs and similar drive capability.
  • CD74HCT620E --: HCT-family octal bus transceiver from the same vendor with equivalent function and pinout, suitable when TTL-compatible input thresholds are needed.

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