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SN74LS645NSR from TI,Texas Instruments

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SN74LS645NSR

Manufacturer: TI

Octal bus transceivers

Partnumber Manufacturer Quantity Availability
SN74LS645NSR TI 1868 In Stock

Description and Introduction

Octal bus transceivers The SN74LS645NSR is a 3-state octal bus transceiver manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Technology Family:** LS  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** SOIC (NSR)  
- **Number of Pins:** 20  
- **Data Rate:** Standard LS speed  
- **Logic Type:** Transceiver, Non-Inverting  
- **Output Type:** 3-State  

### **Descriptions:**  
- The SN74LS645NSR is an octal bus transceiver designed for bidirectional asynchronous communication between data buses.  
- It features separate control inputs for enabling data flow in either direction (A to B or B to A).  
- The outputs are in a high-impedance state when disabled, allowing multiple devices to share a common bus.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by DIR (Direction) input.  
- **Output Enable (OE) Input:** Disables outputs when high, placing them in a high-impedance state.  
- **Non-Inverting Data Paths:** Ensures data integrity without inversion.  
- **Wide Operating Voltage:** Compatible with standard TTL levels.  
- **High-Impedance State:** Prevents bus contention.  
- **Standard Pinout:** Conforms to industry-standard LS logic family pin configurations.  

This device is commonly used in data transmission systems, microprocessor interfaces, and bus-oriented applications.

Application Scenarios & Design Considerations

Octal bus transceivers
Partnumber Manufacturer Quantity Availability
SN74LS645NSR TI 300 In Stock

Description and Introduction

Octal bus transceivers The SN74LS645NSR is a manufacturer by Texas Instruments (TI).  

**Specifications:**  
- **Type:** Octal Bus Transceiver with 3-State Outputs  
- **Logic Family:** LS (Low-Power Schottky)  
- **Number of Channels:** 8  
- **Supply Voltage Range:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** SOIC (Small Outline Integrated Circuit)  
- **Package / Case:** 20-SOIC  
- **Mounting Type:** Surface Mount  
- **Output Type:** 3-State  
- **Propagation Delay Time:** 15ns (typical)  
- **High-Level Output Current:** -2.6mA  
- **Low-Level Output Current:** 24mA  

**Descriptions and Features:**  
- Bidirectional bus transceiver for asynchronous communication between data buses.  
- Non-inverting data path.  
- Direction control (DIR) determines data flow (A to B or B to A).  
- Output enable (OE) input disables both A and B ports for bus isolation.  
- 3-state outputs for bus-oriented applications.  
- Compatible with TTL (Transistor-Transistor Logic) inputs.  
- Low power consumption typical of LS-series devices.  
- Designed for high-speed bus interfacing in digital systems.  

This information is based solely on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

Octal bus transceivers

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