azonenberg:unknown:lc627b
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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.1379340001.txt.gz · Last modified: 2013/09/16 14:00 by azonenberg