Octal D-Type Latch with 3-State Output # **MC74VHCT573ADWR2: A High-Performance Octal Transparent Latch for Modern Digital Systems**
In today’s fast-paced digital landscape, reliable and efficient data handling is crucial for seamless system performance. The **MC74VHCT573ADWR2**, an advanced octal transparent latch from ON Semiconductor, delivers high-speed operation, low power consumption, and robust signal integrity—making it an ideal choice for a wide range of applications.
## **Key Features and Benefits**
### **High-Speed CMOS Technology**
Built with **VHCT (Very High-Speed CMOS) technology**, the MC74VHCT573ADWR2 ensures fast propagation delays while maintaining compatibility with **TTL (Transistor-Transistor Logic)** levels. This makes it suitable for interfacing between legacy TTL systems and modern CMOS circuits, providing seamless integration in mixed-voltage environments.
### **Octal Transparent Latch with 3-State Outputs**
The device features **eight D-type latches** with 3-state outputs, enabling efficient data storage and transfer. The transparent latch function allows real-time data flow when the latch enable (LE) signal is active, while the output enable (OE) pin controls the high-impedance state, preventing bus contention in multi-master systems.
### **Low Power Consumption**
Designed for energy efficiency, the MC74VHCT573ADWR2 operates with a **wide supply voltage range (4.5V to 5.5V)**, making it compatible with standard 5V logic systems. Its CMOS architecture ensures minimal static power dissipation, reducing overall system energy consumption.
### **Robust Noise Immunity**
With **balanced propagation delays** and strong output drive capabilities, this latch minimizes signal distortion and ensures reliable data transmission even in noisy environments. The inputs include **Schmitt-trigger hysteresis**, enhancing noise immunity and signal integrity.
### **Compact and Reliable Packaging**
The MC74VHCT573ADWR2 is available in a **20-pin SOIC (Small Outline Integrated Circuit) package**, offering a space-saving solution for high-density PCB designs. Its robust construction ensures long-term reliability in industrial and commercial applications.
## **Applications**
The versatility of the MC74VHCT573ADWR2 makes it suitable for a broad range of digital systems, including:
- **Microprocessor and microcontroller interfacing**
- **Data buffering and bus driving**
- **Memory address latching**
- **Industrial control systems**
- **Automotive electronics**
- **Communication infrastructure**
## **Conclusion**
For engineers and designers seeking a high-performance, low-power octal latch with TTL compatibility, the **MC74VHCT573ADWR2** stands out as a dependable solution. Its combination of speed, efficiency, and noise resilience makes it an excellent choice for modern digital systems where precision and reliability are paramount.
Whether used in embedded systems, data acquisition, or industrial automation, this latch delivers consistent performance, ensuring smooth data flow and system stability. With its industry-standard pinout and robust design, the MC74VHCT573ADWR2 remains a preferred component for high-speed digital applications.
