Just to add some information... The upgrade to version 5 employs the Dallas Real Time Clock (DS1216) but it goes in the U31 socket not the U30 socket....
The upgrade does nothing to U30 and re-uses U31 in it's same state only it goes into the Dallas socket..... Of course U34 is completely omitted and the new 27C011 goes in the U29 socket... I still wonder the function of U30? Bryon K0BSJ At 12:13 PM 8/30/2004, you wrote: >Tedd: >I have not been following this thread so I have no idea of the whole story >here. I was simply explaining the difference between the 6264 and the 2864. > >But, many years ago someone made a low profile socket for the 6216 and >6264 chips that had a built-in battery and blocking diode. To give your >CMOS RAM chips battery backed capability, you simply plugged this special >socket onto the existing socket on the PC board, then plugged in your CMOS >RAM chips. >Could it be someone retrofitted this RC-96 with this mod ?? > >Ron Rogers >WW8RR > > >-----Original Message----- >From: Tedd Doda [mailto:[EMAIL PROTECTED] >Sent: Monday, August 30, 2004 1:00 PM >To: [EMAIL PROTECTED]; Repeater-Builder@yahoogroups.com >Subject: [Repeater-Builder] RE: RC-96 EEPROM > > >On Mon, 30 Aug 2004 12:38:08 -0400, Rogers, Ron wrote: > > >A 6264 is an 8K X 8 CMOS Static RAM......when you unplug it, it loses > all data. > >The 2864 is an 8K X 8 CMOS EEPROM.......does not lose data when unplugged. > >Hi Ron: > >Well that would make sense! My only question arises >is how can the "base" data be loaded into the 6264 >if it looses it's data when unplugged? As the RC-96 >doesn't have any backup battery, how is the data saved? > >Cross-posted to the ACC list. > > > >Tedd Doda, VE3TJD > >Lazer Audio and Electronics >Baden, Ontario, Canada > > > > > > >Yahoo! Groups Links > > > > > > > > > > >Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
