IC Phoenix logo

Home ›  M  › M115 > MC74AC646DWR2

MC74AC646DWR2 from ON,ON Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MC74AC646DWR2

Manufacturer: ON, MOT

Octal Transceiver/Register with 3-State Outputs (Non-inverting)

Partnumber Manufacturer Quantity Availability
MC74AC646DWR2 ON, MOT 8274 In Stock

Description and Introduction

Octal Transceiver/Register with 3-State Outputs (Non-inverting) # MC74AC646DWR2: A High-Performance Octal Bus Transceiver for Modern Digital Systems  

In today’s fast-paced digital landscape, efficient data transfer between system components is critical for optimal performance. The **MC74AC646DWR2** is a high-performance octal bus transceiver designed to meet the demands of modern digital applications. Combining bidirectional data flow with advanced control features, this integrated circuit (IC) is an ideal solution for interfacing between microprocessors, memory modules, and peripheral devices.  

## Key Features and Benefits  

### **Bidirectional Data Flow with Direction Control**  
The MC74AC646DWR2 facilitates seamless bidirectional data transmission between two independent buses. With direction control pins (**DIR**), users can easily configure the data flow direction, ensuring flexibility in system design. This feature is particularly useful in applications where data must be transferred in both directions without signal contention.  

### **High-Speed Operation with AC Technology**  
Built using **Advanced CMOS (AC) technology**, this transceiver offers high-speed operation while maintaining low power consumption. With propagation delays as low as **6.5 ns**, the MC74AC646DWR2 ensures rapid data transfer, making it suitable for high-frequency digital systems.  

### **3-State Outputs for Bus Isolation**  
The device includes **3-state outputs**, allowing multiple transceivers to share a common bus without interference. When the output enable (**OE**) pin is deactivated, the outputs enter a high-impedance state, effectively isolating the device from the bus. This feature is essential for multi-drop bus architectures, such as those found in data acquisition systems and communication networks.  

### **Wide Operating Voltage Range**  
Supporting a **2.0V to 6.0V** supply voltage range, the MC74AC646DWR2 is compatible with both **TTL and CMOS** logic levels. This versatility makes it an excellent choice for mixed-voltage systems, reducing the need for additional level-shifting components.  

### **Robust and Reliable Performance**  
With a **balanced drive capability** and strong noise immunity, the MC74AC646DWR2 delivers reliable performance even in electrically noisy environments. Its **±24mA output drive** ensures stable signal integrity across long traces, making it ideal for industrial and automotive applications.  

## Applications  

The MC74AC646DWR2 is well-suited for a variety of digital systems, including:  
- **Microprocessor and microcontroller interfacing**  
- **Memory bus buffering and expansion**  
- **Data communication systems**  
- **Industrial automation and control**  
- **Automotive electronics**  

## Package and Availability  

Housed in a **20-pin SOIC (DWR2) package**, the MC74AC646DWR2 offers a compact footprint for space-constrained designs. Its surface-mount construction ensures easy integration into modern PCB layouts while maintaining high reliability.  

## Conclusion  

For engineers and designers seeking a high-performance octal bus transceiver, the **MC74AC646DWR2** delivers speed, efficiency, and versatility. Its robust feature set, including bidirectional data flow, 3-state outputs, and wide voltage compatibility, makes it an indispensable component in advanced digital systems. Whether used in computing, communications, or industrial applications, this IC ensures seamless and reliable data transfer, enhancing overall system performance.  

For detailed specifications and design considerations, consult the official datasheet to ensure proper implementation in your next project.

Application Scenarios & Design Considerations

Octal Transceiver/Register with 3-State Outputs (Non-inverting)

Alternative Part Number

  • SN74AC646DW --: Same AC-family octal bus transceiver/register with 3-state outputs in SOIC-24, direct functional and pin-compatible replacement.
  • 74AC646D --: Equivalent 74AC646 octal transceiver/register in SOIC-24 package, same logic function and pinout.
  • CD74AC646M --: AC-series octal bus transceiver/register in SOIC-24, compatible function and supply range for the original part.
  • 74AC646DWR --: Same AC-family octal bus transceiver/register with equivalent function and pinout, offered by a major logic supplier as a direct functional replacement.
  • 74ACT646DWR --: ACT-family version of the same octal transceiver/register; TTL-compatible inputs and same function, usable where input thresholds permit.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips