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SN74HC646DWR from TI,Texas Instruments

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SN74HC646DWR

Manufacturer: TI

Octal Bus Transceivers And Registers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74HC646DWR TI 2000 In Stock

Description and Introduction

Octal Bus Transceivers And Registers With 3-State Outputs The SN74HC646DWR is a high-speed CMOS logic octal bus transceiver and register manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Octal Bus Transceiver/Register  
- **Number of Bits:** 8  
- **Supply Voltage Range:** 2V to 6V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Type:** 3-State  
- **Package Type:** SOIC (DWR)  
- **Number of Pins:** 24  
- **High-Level Output Current:** -6 mA  
- **Low-Level Output Current:** 6 mA  
- **Propagation Delay Time:** 15 ns (typical at 5V)  
- **Mounting Type:** Surface Mount  

### **Descriptions:**  
The SN74HC646DWR combines an octal bus transceiver with D-type flip-flops, allowing bidirectional data flow between buses. It features separate control inputs for data transfer direction and register operations.  

### **Features:**  
- **Bidirectional Data Flow:** Controlled by direction (DIR) input.  
- **3-State Outputs:** Allows bus isolation.  
- **Storage Registers:** Enable synchronous data transfer.  
- **Wide Operating Voltage:** 2V to 6V.  
- **Balanced Propagation Delays:** Ensures timing consistency.  
- **Low Power Consumption:** CMOS technology efficiency.  
- **ESD Protection:** Exceeds 2000V per JESD 22-A114.  

This device is commonly used in data communication, buffering, and bus interfacing applications.

Application Scenarios & Design Considerations

Octal Bus Transceivers And Registers With 3-State Outputs

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