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--- azonenberg:unknown:lc627b [2013/09/16 09:08] – created azonenberg
+++ azonenberg:unknown:lc627b [2025/08/04 21:24] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-{{tag>collection_az vendor_unknown year_unknown type_unknown}}
+{{tag>collection_az vendor_unknown year_unknown type_unknown tech_unknown foundry_unknown}}
-Unknown 16-pin bare die found in my lab while imaging backlog. No idea of function, vendor, or original markings. Seems to be a dual something.
+Unknown 16-pin bare die found in my lab while imaging backlog. No idea of function, vendor, or original markings.
+Preliminary analysis:
+  * 1-metal 1-poly CMOS process
+  * Large "herringbone" structures are pad drivers
+  * Pad with trimmed corners is #1
+  * Pad above it is #16, Vdd
+  * Pad second from bottom on right is #8, Vss
+  * Inner ring is Vss
+  * Outer ring is Vdd
+  * Best guess so far is loadable 4-bit up/down counter, maybe 74HC or CD4000 series
+{{:azonenberg:unknown:lc627b_stitched_neo10x_small.jpg?600|}}
 {{:azonenberg:unknown:lc627b_01_bf_neo5x_annotated.jpg?600|}}
@@ Line 8: / Line 20: @@
 {{:azonenberg:unknown:lc627b_03_bf_neo20x_annotated.jpg?600|}}
+{{:azonenberg:unknown:lc627b_10_bf_neo20x_annotated.jpg?600|}}
+{{:azonenberg:unknown:lc627b_11_bf_neo20x_annotated.jpg?600|}}