74hc51 is a digital integrated circuit chip.
Because 74hc51 is a standard NOT Gate chip, often used in the design of logic control circuits in digital circuits, it can convert high level input signals to low level output signals.
In addition to 74hc51, digital integrated circuit chips also include logic gates, multiplexers, decoders and other types, widely used in digital circuits, computer hardware and communication networks.
74hc51 chip is a single chip integrated circuit programming chip.