Hi Martin, Fairly spoken: your expanation is not very clear to me. Is it, you want to connect one of the resets of the 7493 via a CMOS switch to one of the outputs of the 7493? In that case my imediate reaction is: why not via an and-gate? It are digital signals, so digital circuit suit well. And it seems to me that you are creating a hazard in this way for the resets are level inputs. At the moment the output goes high (or low, whatever is applicable) the reset will activate, but when to flip- flop belonging to the output signal is resetting faster than the other flip-flops, it is not sure the other flip-flops will also reset.
As for the CMOS switches, I agree with Declans remark obout other types. Be aware that the 4016 was an earley design of CMOS switch and later types are better in general. Depending from what you want see p.e. 4066 and 4316. The latter has an analog level around 0V, The 4016 and 4066 around halve the supply voltage. Between manufacturers there are differences in Rdson for the same type of circuit. > I need to connect one of the reset lines on a 7493 to one or > another of two outputs on that counter. Are there any TTL or > TTL compatible chips that resemble the CD4016 in that each switch on > the chip has an input, output and tristate line to turn the switch > completely off? > > I thought of using a CD4016 for this purpose but I like to > save those for analog switching and I am not sure it would even work > properly at 2.4 MHZ which is the clock frequency in the circuit. > > In this particular case, I need non-inverting outputs. If > there is such a device, is there also an inverting version of the same > thing? > > Martin McCormick > -- > Author: Martin McCormick > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB CHIPDIR-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Author: H.C. Croon INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
