The MC74HC390AFEL is an integrated circuit (IC) component that belongs to the 74HC series, which is a family of high-speed CMOS logic devices. It is a dual decade counter/divider with reset and preset functionalities. The component is primarily used in digital circuits to count and divide input clock signals.
Key Features of MC74HC390AFEL:
1. Dual Decade Counter/Divider: The MC74HC390AFEL contains two independent counters that can count in a binary-coded decimal (BCD) sequence from 0 to 9, and then reset to 0. These counters are used to divide input clock signals by 10 or any other desired value.
2. Reset and Preset Capability: This IC allows for resetting the counters to 0 using an external reset input. It also includes a preset input to load a desired starting value into the counters. The reset and preset features provide flexibility and control over counting operations.
3. High-Speed Operation: The "HC" in MC74HC390AFEL stands for high-speed CMOS, indicating its ability to operate at higher clock frequencies compared to standard CMOS logic devices. This allows for efficient counting and dividing of fast input clock signals.
4. 5V Operation: The MC74HC390AFEL is designed to operate with a 5-volt power supply. This voltage compatibility makes it compatible with many digital systems that use a 5V power source
