74F240PC Octal Inverting Buffer/Line Driver IC with 3-State Outputs The 74F240PC is a high-speed octal inverting buffer and line driver, designed to enhance the performance and density of 3-state buffers and drivers in digital systems. This integrated circuit is particularly suitable for applications such as memory address drivers, clock drivers, and bus-oriented transmitters or receivers. Key Features Octal Configuration: Comprises eight inverting buffers, organized into two independent 4-bit sections, each controlled by its own output enable input. 3-State Outputs: Facilitates direct bus line driving with the ability to set outputs to a high-impedance state, allowing for efficient bus management and multiplexing. High-Speed Operation: Offers fast propagation delays, making it suitable for high-speed digital applications. High Output Drive Capability: Capable of sourcing up to 3 mA and sinking up to 64 mA per output, enabling it to drive terminated lines down to 133? and support high fan-out configurations. Improved Noise Immunity: Features input hysteresis, typically between 0.2V and 0.4V, enhancing noise margins and ensuring reliable signal transmission. Reduced DC Loading: Incorporates PNP inputs to minimize DC loading on data and bus lines, improving overall system performance. Specifications Supply Voltage (V CC ): 4.5V to 5.5V Operating Temperature Range: 0°C to 70°C Package Type: 20-Pin Dual In-line Package (DIP) Propagation Delay: Typically 9 ns Output Current: High-level output current (I OH ): -15 mA; Low-level output current (I OL ): 64 mA Applications Bus Drivers and Transceivers: Ideal for driving data and address buses in microprocessor-based systems. Memory Address Buffering: Enhances signal integrity and speed in memory interfacing. Clock Distribution: Suitable for distributing clock signals with minimal delay and distortion. Line Driving: Capable of driving terminated transmission lines and high-fanout logic networks. General TTL-Level Buffering: Provides buffering and signal inversion in various digital logic applications. The 74F240PC’s combination of high-speed performance, robust output drive capabilities, and versatile 3-state outputs makes it a valuable component in a wide range of digital systems requiring efficient signal buffering and line driving.