They're also covered in the TTL Cookbook (That's where I found out about them)... Where did you find them?!?
-Adam On Thu, Feb 23, 2012 at 6:44 PM, David Forbes <[email protected]> wrote: > On 2/23/12 7:11 PM, Dylan Distasio wrote: > >> Hi all- >> >> I recently picked up 2 SN74142 ICs. I'm about to show my ignorance >> again, but can someone with some patience walk me through how I would >> use these in a nixie clock. I'm familiar with the 74141s but have to >> admit after reading the SN74142 datasheet I am not entirely sure how >> this one works. I am still a beginner at digital logic, and would >> appreciate any help with utlizing a combo of a decimal counter / 4-bit >> latch /decimal decoder/ nixie driver in one IC. >> Datasheet http://diogenes.iwt.uni-**bremen.de/vt/laser/nixie/** >> SN74142.pdf<http://diogenes.iwt.uni-bremen.de/vt/laser/nixie/SN74142.pdf> >> Best, >> Dylan >> >> > Dylan, > > Lucky man! I've never seen one of those chips in person. > > I have used the old CMOS more-or-less equivalent, the CD4033 (which drives > 7-segment LEDs) to make a clock. You will need to wire the latch in > transparent mode, as the latch function is not needed for a clock. > > RCA published an app note in their 1974 data book that I built in 1976. It > worked. I'll see if my scanner will cooperate enough to scan the app note. > > -- > David Forbes, Tucson AZ > > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to neonixie-l+unsubscribe@** > googlegroups.com <neonixie-l%[email protected]>. > For more options, visit this group at http://groups.google.com/** > group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> > . > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
