The MM74HCT138M is an integrated circuit (IC) component that serves as a 3-to-8 line decoder or demultiplexer. It is part of the MM74HCT series, which is characterized by high-speed operation and compatibility with TTL (transistor-transistor logic) inputs. The MM74HCT138M is housed in a small outline integrated circuit (SOIC) package, which makes it suitable for various applications.
Key features of the MM74HCT138M IC component include:
1. High-speed performance: The MM74HCT138M operates at a fast speed, allowing for quick signal decoding or demultiplexing.
2. TTL compatibility: This IC component offers compatibility with TTL inputs, making it versatile and easy to integrate into existing circuits.
3. 3-to-8 line decoding: The MM74HCT138M can decode a 3-line binary input into one of the eight mutually exclusive active-low outputs. This decoding feature is useful in applications where multiple signals need to be selected based on a given input combination.
4. Active-low outputs: The outputs of the decoder are active-low, meaning they are in the logic LOW state when activated. This polarity allows for simpler interfacing with other logic elements.
5. Enable pin: The MM74HCT138M includes an enable (E) pin, which can be used to disable the decoder
