BUY SN74LS244 https://www.utsource.net/itm/p/11565077.html

SN74LS244 is a 8-bit buffer/line driver with 3-state outputs. It is a low-power Schottky TTL (LSTTL) logic device. Description: The SN74LS244 is a 8-bit buffer/line driver with 3-state outputs. It is designed to be used as a line driver or buffer for memory address, data, and control buses. The device has an active-low output enable (OE) input which, when low, disables the outputs so that the bus-driving capability is removed from the bus. Features: Low-power Schottky TTL (LSTTL) logic Outputs source/sink 24 mA Outputs can be wired-ANDed Outputs can be disabled Inputs accept voltages to 7V Input clamp diodes Outputs in high-impedance state when OE is high Applications: Bus drivers Bus transceivers Memory address drivers Memory data buffers Peripheral interface adapters Data communications Clock drivers (For reference only)