# SA-MEM-017 SRAM Column MUX and I/O Browser Replay

Version: 2026-08-17-v75

This public replay promotes the verified SA-MEM-017 column-mux/I/O fixture into a browser-side CSV lab. The browser filters 864 saved rows; it does not run ngspice or accept uploads.

## Key Results

- Median mux-to-output latency rises from 423 ps at mux ratio 1 to 546 ps at mux ratio 8.
- Median latency rises from 404 ps at 6 fF shared load to 552 ps at 28 fF shared load.
- Label counts: 503 pass, 191 attenuated_mux_input, 160 late_io, and 10 weak_local_delta.
- Primary fixture QA passed 13/13; independent verification passed 10/10.

## Boundary

Generic Level-1/lumped-load teaching fixture only. Not macro timing, foundry calibration, silicon evidence, yield qualification, reliability signoff, product SRAM evidence, or process/design signoff.