The device is designed for low-voltage (2.5-V or 3.3-V ) VCC applications, but it could be used to interface to 5-V supply environment for both inputs and outputs. This device is inverting 3-state buffer having four active-low output enables. It can be used as four 4-bit buffers two 8-bit buffers or one 16-bit buffer. When the OE input is high, the outputs are in a high-impedance state. This device is designed to be used with 3-state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge.