{{tag>collection_mcmaster vendor_wdc type_unknown year_1975 foundry_unknown}}
====== PCB ======
{{:mcmaster:wdc:cp1621b:pcb.jpg?300|}}
{{:mcmaster:wdc:cp1621b:pcb_chips.jpg?300|}}
From PDP-11 / LSI-11
====== Package ======
{{:mcmaster:wdc:cp1621b:pack_top.jpg?300|}}
CP1621B14
7601
90
23001C3
{{:mcmaster:wdc:cp1621b:pack_btm.jpg?300|}}
====== Die ======
CP1621
124567
NHJJLD
(C)
WDC
1975
[[https://siliconpr0n.org/map/wdc/cp1621b/mcmaster_mz_mit20x/|MZ @ 20x]]
* [[https://siliconpr0n.org/map/wdc/cp1621b/single/wdc_cp1621b_mcmaster_mz_mit20x.jpg|Single]] (14329x14859, 80 MB)
====== Links ======
* [[http://www.cpushack.com/2014/02/09/western-digital-wd9000-pascal-microengine/|About this chip]]