onsemi Logic - Buffers, Drivers, Receivers, Transceivers MM74HCT540WM

The MM74HCT540WM is an octal 3-state inverting buffer designed for high-speed operation using advanced silicon-gate CMOS technology. It features TTL input compatibility and can drive large bus capacitances with a minimum output current of 6 mA. The device operates with a supply voltage range of 4.5V to 5.5V and has a typical propagation delay of 12 ns, making it suitable for applications requiring fast signal processing. This buffer has 3-state outputs, allowing for connection to system buses, and includes a high-impedance state controlled by a two-input NOR gate. The MM74HCT540WM is also designed to be a plug-in replacement for LS-TTL devices, providing a means to reduce power consumption in existing designs. It is available in a SOIC-20 or TSSOP-20 package, with all inputs protected against static discharge. The operating temperature range extends from -55¬8C to +125¬8C, ensuring reliability in various environments.