Path: utzoo!mnetor!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!rutgers!iuvax!pur-ee!uiucdcs!uiucdcsb!irwin From: irwin@uiucdcsb.cs.uiuc.edu Newsgroups: sci.electronics Subject: Re: Pins on a dumb `ol 7404 Message-ID: <162700009@uiucdcsb> Date: 11 Apr 88 20:44:00 GMT References: <2496@unicus.UUCP> Lines: 21 Nf-ID: #R:unicus.UUCP:2496:uiucdcsb:162700009:000:321 Nf-From: uiucdcsb.cs.uiuc.edu!irwin Apr 11 14:44:00 1988 The 7404 is a hex inverter chip. There are two different pinouts for the 7404, depending on suffix, as follows: SN7404(J,N) SN7404(W) IN OUT IN OUT 1 2 1 14 3 4 3 2 5 6 5 6 9 8 7 8 11 10 9 10 13 12 13 12 VCC pin 14 VCC pin 4 Gnd pin 7 Gnd pin 11 Hope this helps.