Releases: bkw777/TANDY_600_RAM
Releases · bkw777/TANDY_600_RAM
v014
On the 192k dual board, add a pullup to VMEM on /CE to fix a standby battery drain.
Before: 2.3 mA
After: 13 uA
v009
Final reference version that is still based on 74148
v008
- add datasheets
- update bom with best sram part for battery life
- add teardrops to release gerbers. only added for the gerber export, not saved in the pcb file because it requires a plugin
v006
Use more fathomable pins on the 74HC148 for converting /CS1_A,/CS1_B,/CS1_C to /CS1,A15,A16
v005
Allow either SOIC or SOP package size for the 74HC148
v002
- copy all symbols and footprints to a project library so the files are self-contained and portable
- custom footprints
- add 3d models
- massage the traces and routing
This is still the original circuit electrically.
v001 - JLS-1.1 original
This is the original v1.1 from Jayeson Lee-Steere