New project parts just arrived!
@th is that the underside under a microscope without decapping? it's so pretty. is it a common issue for the bond wires to have detached over time?
@fbz this soviet-era SRAM chip was selected for its easy-to-remove metal cover so that the die can be exposed to light. it's as old as I am and of unknown provenance, so I was worried about possible mechanical failures.
@fbz this is just a normal SRAM chip in a ceramic package. the UV EPROM typically have quartz windows so that you can expose the die to the eraser light without dust contaminating the inside.
@phooky if it is the same pinout as the i2102, then it is an address line. luckily I bought lots since I expected to break a few.