[sdiy] 3x Input OR Gate from NANDs? (v2)

Ove Ridé nitro2k01 at gmail.com
Fri Oct 5 21:44:00 CEST 2012


Is this homework?

On 5 October 2012 21:32, Justin Owen <juzowen at gmail.com> wrote:
> Thanks all...
>
> Like so: http://www.sdiy.org/juz/NAND_logic_02.jpg
>
> Yes, my requirement is to use 2x input NANDs - so that counts out a 3x input NAND and other non-NAND methods.
>
> Mattias - regarding the IC numbers - that's just me copying and pasting in Eagle. This method gets it down to 8x NAND Gates or 2x 4011 ICs which is just fine.
>
> Thanks.
>
> J
>
> -----Original Message-----
> From: Needham, Alan [Alan.Needham at centrica.com]
> Received: 05.10.2012 18:33:34
> To: Justin Owen; SDIY List
> Subject: RE: [sdiy] 3x Input OR Gate from NANDs?
>
> Well, looking at the attached, IC1b and IC1c are doing the
>  same thing so one could be scrapped, using the remaining
>  one for both IC2a and IC2b inputs.
>
> You say NAND but don't specify how many inputs - the
>  attachment uses only 2-input but 3-input exist so...
>  If all 3 inputs are inverted as per attachment,
>  All three inverted signals could go into a 3-input NAND
>  That's all, DONE!
>
>
> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Justin Owen
> Sent: 05 October 2012 18:08
> To: SDIY List
> Subject: [sdiy] 3x Input OR Gate from NANDs?
>
> Like the title says - 3x Inputs, any 1 of them goes High - the Output goes High. All 3x Low - the Output is Low.
>
> Must be built out of NAND Gates.
>
> Would this do the trick?
>
> http://www.sdiy.org/juz/NAND_logic_01.jpg
>
> Is there a simpler way?
>
> Thanks,
>
> Justin
>
> _______________________________________________
>
>
> _____________________________________________________________________
> The information contained in or attached to this email is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are not authorised to and must not disclose, copy, distribute, or retain this message or any part of it. It may contain information which is confidential and/or covered by legal professional or other privilege (or other rules or laws with similar effect in jurisdictions outside England and Wales).
>
> The views expressed in this email are not necessarily the views of Centrica plc, and the company, its directors, officers or employees make no representation or accept any liability for its accuracy or completeness unless expressly stated to the contrary.
>
> British Gas Trading Limited (company no: 03078711) British Gas Services Limited (company no: 3141243) and Centrica Energy (Trading) Limited (company no: 02877397), are all wholly owned subsidiaries of Centrica PLC (company no: 3033654).  Each company is registered in England and Wales with a registered office at Millstream, Maidenhead Road, Windsor, Berkshire SL4 5GD.
>
> British Gas Services Limited (BGS) and Centrica Energy (Trading) Limited are both authorised and regulated by the Financial Services Authority (FSA registration numbers are 490568 and 232514, respectively). BGS is authorised and regulated by the FSA for insurance mediation services.  British Gas Trading Limited is an appointed representative of BGS for insurance mediation services (FSA registration number: 439467).
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy



-- 
/Ove

Blog: <http://blog.gg8.se/>

"Here is Evergreen City. Evergreen is the color of green forever."



More information about the Synth-diy mailing list