The J-11 is a microprocessor chip set that combines a data path chip and a control chip in ceramic leadless packages mounted on a single ceramic hybrid DIP-60 package.
The circuit was used in the PDP-11/73, PDP-11/83.
J-11 Programmers Reference, Jan 1982
J-11 Data Chip Specification, Jul 1982
J-11 Control Chip Specification, Jun 1982
J-11 Microprocessor, Users Guide