ON Semiconductor MC74ACT161DR2
The MC74ACT161DR2 is a high-performance, CMOS logic integrated circuit from ON Semiconductor, renowned for its precision and durability in digital applications. This particular device is a synchronous presettable binary counter that offers advanced features for a range of electronic applications.
Designed with the sophisticated user in mind, the MC74ACT161DR2 is a versatile component that can be utilized in various timing and counting functions. It operates with a 4-bit binary counter which can be incremented on each rising edge of the clock signal when the count enable input is in the active state. This feature makes it an ideal choice for precise counting applications in digital systems.
The device comes in a compact SOIC-16 package, ensuring a minimal footprint on the circuit board, which is crucial for space-constrained applications. The small size, however, does not compromise its performance or functionality. The counter can be easily set to a desired value using the synchronous preset feature, which is activated by the preset enable input. This allows for quick initialization or resetting of the counter value as required by the system's logic.
Furthermore, the MC74ACT161DR2 has a built-in look-ahead carry feature, which facilitates easy cascading of multiple counters for extended count ranges without significant delay. This is particularly useful for complex counting tasks that require high-speed operation and accuracy. The asynchronous reset input also enables the counter to be cleared instantaneously, ensuring that the system can quickly return to a known state in the event of an error or during a power-up sequence.
With its operating voltage range of 4.5V to 5.5V, the MC74ACT161DR2 is compatible with TTL levels, allowing it to be used in mixed-voltage environments. This makes it a flexible choice for designers who need to integrate the device into legacy systems or in conjunction with newer, low-voltage components.
In summary, the ON Semiconductor MC74ACT161DR2 is a robust and reliable binary counter, packed with features like synchronous presetting, look-ahead carry, and asynchronous reset, all encapsulated in a space-efficient SOIC-16 package. It is an excellent choice for designers who require a high-performance counting solution in their digital electronics projects.
