MM5451BV TR

The MM5451BV TR is an integrated circuit (IC) component developed by National Semiconductor Corporation. It is a versatile and low-power display drive device that can control up to 35 LED's or other displays with a maximum of 300 on/off outputs. It is widely used for driving large size numeric or alphanumeric displays, such as LED scoreboards, panels, and signs, as well as multiplexed dot matrix displays. Key Features of MM5451BV TR: 1. High Integration: The IC combines the necessary voltage regulators, data latches, multiplex scan circuitry, and constant current output circuits within a single chip. This allows for easier and more streamlined circuit design. 2. Serial Interface: The IC uses a simple 4-wire, 8-bit serial input to receive data to be displayed. This facilitates easy control and interfacing with microcontrollers or other digital devices. 3. Multiple Display Formats: The MM5451BV TR supports various display formats, including seven-segment numeric displays, dot matrix displays (up to 5x7 resolution), and even bar graph displays. This versatility makes it highly adaptable to different project requirements. 4. High Drive Capability: The IC can directly drive common-anode displays with 3V to 25V supply voltage and up to 25mA cathode current per output. It provides constant current to ensure consistent and uniform brightness across all the display elements