BUY SN74LS244NSRG4 https://www.utsource.net/itm/p/1115362.html
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
Description: Octal Buffer/Line Driver with 3-State Outputs Features: Inputs and Outputs Are TTL-Voltage Compatible Outputs Can Be Connected Directly to CMOS, NMOS, and TTL Circuits Outputs Source/Sink 24 mA Outputs Have High Impedance When Disabled Outputs Can Be Disabled Independently Operating Voltage Range of 4.75 V to 5.25 V Operating Temperature Range of -55°C to 125°C Applications: Memory Decoders Data Selectors/Multiplexers High-Speed Line Drivers High-Speed Clock Drivers High-Speed Address Drivers Bus Oriented Circuits Peripheral Interface Adapters High-Speed Interfacing Between MOS and TTL Circuits (For reference only)