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This is a low-voltage (typically 3 or 4 Volt) PLL stereo decoder chip.
This chip is in a SOIC case, *not* in DIP.
The PCB-01 can be used to use this chip in a DIP socket, breadboard, etc.
This is a generic component, which means that the component you buy can be from any manufacturer that produces this component. There can be small variations is the exact specifications.