PLCC socket, 84-position closed frame
The 1-822473-7 is a 84-position PLCC socket from TE Connectivity AMP Connectors, arranged in a 4 x 21 grid with a closed frame housing. Mating pitch is 0.050" (1.27mm) with a post pitch of 0.100" (2.54mm).
No official successor or pin-compatible alternative is recorded for this PLCC socket.
