The CD74HCT390E is an integrated circuit (IC) component manufactured by Texas Instruments. It is a dual 4-bit decade counter that operates on a high-speed CMOS technology known as the HCT series. This IC provides two separate 4-bit synchronous decade counters in a single package, making it highly convenient for applications that require multiple counters.
Key features of the CD74HCT390E include:
1. Synchronous Operation: The counters in this IC operate synchronously, meaning they respond to clock signals and update their outputs simultaneously. This ensures proper synchronization of the counter outputs, making it suitable for applications where timing precision is crucial.
2. Decade Counter: Each of the two counters in the CD74HCT390E is a decade counter, meaning it can count from 0 to 9 before rolling over to 0 again. This makes it ideal for various applications that involve counting, such as frequency division, timekeeping, or event detection.
3. Ripple Counter Configuration: The CD74HCT390E is designed as a ripple counter, which means the output of one counter stage serves as the clock input for the following stage. This allows multiple counters to be cascaded together, further extending the counting range or enabling complex counting configurations.
4. Reset Functionality: The CD74HCT390E features an asynchronous reset input, allowing the counters to be reset to a predetermined state at any time
