BUY 74LS15 https://www.utsource.net/itm/p/1725339.html
TRIPLE 3-INPUT AND GATE
Package: SOP-16
Description: The 74LS15 is a Quad 2-Input Positive-OR Gates.
Features:
Low power Schottky
Inputs compatible with standard TTL outputs
Outputs source/sink 24 mA
Fanout of 2 LS-TTL loads
Fully static operation
Wide operating temperature range
Available in 16-pin DIP and SOIC packages
Applications:
Logic gating
Data transfer
Data selection
Data storage
Data conversion
Data processing
(For reference only)