[neonixie-l] 74HCT595 shift register in DIP package?
Hi all, My reacquaintance with Nixie's is progressing well and I'm looking at experimenting with driving them via a Raspberry Pi. I know this is complete overkill but it makes for a nice experimentation platform and I'm comfortable with Python (so eases the learning curve!). With this in mind and given the Pi's low GPIO pin count, I want to experiment with shift registers and I believe that the 74HCT595 is suitable for driving via from the Pi's 3.3v logic. However, I'm having difficulty finding this chip in a DIP package. Does anyone know of a source of these shift registers in DIP form (or indeed any equivalents)? Many thanks Matt -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/9f062d91-8dea-4061-a24a-325ea5e33b5f%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 74HCT595 shift register in DIP package?
Others more knowledgeable than myself may offer a better suggestion, but I believe if you power the 74HC595 with a 3.3V power supply, it will work fine as a shift register for the Pi. I have not actually tried this, but a quick google shows them being used quite a bit on the Pi. I haven't actually hooked mine up to a shift register yet so I don't speak from personal experience though. The 74HC595 in a DIP package is easy to find. On Fri, Nov 29, 2013 at 6:50 AM, Matt Wetherill matt.wether...@gmail.comwrote: Hi all, My reacquaintance with Nixie's is progressing well and I'm looking at experimenting with driving them via a Raspberry Pi. I know this is complete overkill but it makes for a nice experimentation platform and I'm comfortable with Python (so eases the learning curve!). With this in mind and given the Pi's low GPIO pin count, I want to experiment with shift registers and I believe that the 74HCT595 is suitable for driving via from the Pi's 3.3v logic. However, I'm having difficulty finding this chip in a DIP package. Does anyone know of a source of these shift registers in DIP form (or indeed any equivalents)? Many thanks Matt -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/9f062d91-8dea-4061-a24a-325ea5e33b5f%40googlegroups.com . For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAJrqPH8QAiJTLo%2B0kV1%2BiCS1PNgnpX45f8667PGwUgs1KzoD-Q%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 74HCT595 shift register in DIP package?
With this in mind and given the Pi's low GPIO pin count, I want to experiment with shift registers and I believe that the 74HCT595 is suitable for driving via from the Pi's 3.3v logic. However, I'm having difficulty finding this chip in a DIP package. DigiKey has 'em, part number 568-1560-5-ND, $1.97 apiece. I just did a search for 74HCT595, then filtered by DIP package type and got that part. - John -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5B503162-86DC-40CD-8254-9794A6FF9DE9%40mac.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 74HCT595 shift register in DIP package?
On 11/29/13 4:50 AM, Matt Wetherill wrote: Hi all, My reacquaintance with Nixie's is progressing well and I'm looking at experimenting with driving them via a Raspberry Pi. I know this is complete overkill but it makes for a nice experimentation platform and I'm comfortable with Python (so eases the learning curve!). With this in mind and given the Pi's low GPIO pin count, I want to experiment with shift registers and I believe that the 74HCT595 is suitable for driving via from the Pi's 3.3v logic. However, I'm having difficulty finding this chip in a DIP package. Does anyone know of a source of these shift registers in DIP form (or indeed any equivalents)? Many thanks Matt Matt, You will do much better searching for the 74HC595 rather than the 74HCT595. It has different (CMOS) input threshold voltage, but it's widely available in DIP for much less money. -- David Forbes, Tucson AZ -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5298B8F7.1000109%40dakotacom.net. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 74HCT595 shift register in DIP package?
Thanks all for the replies, Research on the web highlighted a couple of people who say they had trouble driving 74HC595 chips from the 3.3v logic outputs on the Pi however this may well be inaccurate - I am get hold of a few and give them a try. They are easily available from Farnell here in the UK. Thanks for the Digikey pointer - if it turns out that I do need 74HCT's then that's a good option although shipping to the UK is a bit of a killer. Matt -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/-8262369312823280610%40unknownmsgid. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 74HCT595 shift register in DIP package?
On 11/29/13 9:09 AM, Matt Wetherill wrote: Thanks all for the replies, Research on the web highlighted a couple of people who say they had trouble driving 74HC595 chips from the 3.3v logic outputs on the Pi however this may well be inaccurate - I am get hold of a few and give them a try. They are easily available from Farnell here in the UK. Thanks for the Digikey pointer - if it turns out that I do need 74HCT's then that's a good option although shipping to the UK is a bit of a killer. Matt Matt, You won't have a problem if you drive the 74HC595 from 3.3V also. It works down to 2V! -- David Forbes, Tucson AZ -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5298BDA7.2070803%40dakotacom.net. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 74HCT595 shift register in DIP package?
On 29 Nov 2013, at 16:15, David Forbes dfor...@dakotacom.net Matt, You won't have a problem if you drive the 74HC595 from 3.3V also. It works down to 2V! -- David Forbes, Tucson AZ -- Thanks David, I just took a look at the spec sheets and you are of course absolutely right! That'll teach me to believe random stuff I read on the Internet - doh! Matt -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/-5367200587241146022%40unknownmsgid. For more options, visit https://groups.google.com/groups/opt_out.
