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  #1  
Old 07-17-2009, 04:22 PM
simeonz11 simeonz11 is offline
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Default ISO: ttl chip that can have a 50/50 duty cycle pulse up to 5 mhz
Hi ,

I am looking foir a faster replacement for my oscillator chip ( cd4047 ) , I wanna to to up to 2 mhz but this thing is just crappy @ those speeds .

So basicly I need a easy and cheap ttl chip , 14 pins , that can do perfect 50/50 all the time .

pretty ez

I just need a chip # .

thx guys
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Old 07-17-2009, 04:24 PM
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blueroomelectronics blueroomelectronics is offline
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Are you trying to make an HHO generator? I wouldn't waste my time, it's a scam.
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Old 07-17-2009, 04:54 PM
simeonz11 simeonz11 is offline
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no im not making an hho generator .

Dont worry about me being scammed also .
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Old 07-17-2009, 05:04 PM
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blueroomelectronics blueroomelectronics is offline
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May I ask what it will be used for?

Sometimes you can find fast HCT versions of old CMOS I/Cs but the old CMOS CD4047 isn't one of them and peaks out at 100kHz.
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Old 07-17-2009, 06:59 PM
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Why not just get a 5 (or 50 MHz) TTL oscillator?
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Old 07-17-2009, 08:57 PM
baysidebecca baysidebecca is offline
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National's LMC555 is good to 3MHz if you're looking for a chip to experiment with:
http://www.national.com/mpf/LM/LMC555.html
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