BUY IDT74FCT646ATP https://www.utsource.net/itm/p/11648510.html

Description: The IDT74FCT646ATP is a low-power, high-speed CMOS Octal Bus Transceiver designed for asynchronous two-way communication between data buses. Features: Low-power CMOS technology TTL compatible inputs and outputs High-impedance outputs in the high-impedance state Outputs source/sink 24 mA High-speed operation: tPD = 8.5 ns (typical) Bus hold data inputs eliminate the need for external pull-up resistors Low-power dissipation: ICC = 8 mA (max) Available in 24-pin DIP and SOIC packages Applications: Bus-oriented systems High-speed bidirectional data transmission Peripheral interfaces High-speed buffer memory High-speed data transfer between two buses (For reference only)