NEW DEC & AMI 304E 21-15542-01 Memory Management IC -- UIC p/n 40278101 -- @MCO 

BB38

Price is for 1 piece

These are "KTF11" chips, the optional memory-management unit (MMU) for the DEC PDP-11/23 (KDF11A/B) and PDP-11/24 (KDF11UA) CPUs