M74HC161B1R

The M74HC161B1R is an IC (Integrated Circuit) component that belongs to the HC family of high-speed CMOS (Complementary Metal-Oxide-Semiconductor) logic devices. This IC is a synchronous binary counter, specifically a 4-bit synchronous presettable counter. It is primarily designed for use in various digital applications that require precise count control and synchronization. Key features of the M74HC161B1R include: 1. Synchronous Operation: The IC operates synchronously with a clock input signal, ensuring precise timing and synchronization of counting operations. 2. Binary Counter: It functions as a binary counter, capable of counting up to a maximum of 16 different states (24 = 16) before resetting back to its initial state. 3. Presettable: The counter can be preset to any desired initial value using the preset inputs (P0, P1, P2, P3). This feature allows for flexible count initialization as per the application requirements. 4. Asynchronous Parallel Load: The IC also supports an asynchronous parallel load feature, enabling immediate resetting of the counter to the initial value through a parallel data input (LD) signal. 5. Ripple Carry Output: The M74HC161B1R offers a ripple carry output (RCO) that produces a high-level signal when the counter reaches its maximum count, providing a timing reference for cascading or other purposes