But to generate a 90 degree output with only one flip-flop would take extra= logic, it would still use a lot of board space. Best regards, Bob ________________________________________ From: piclist-bounces@mit.edu on behalf of Isaac = M. Bavaresco Sent: Friday, May 24, 2019 1:50 PM To: Microcontroller discussion list - Public. Subject: Re: [EE] Generating a quadrature clock. There exists the SN74LVC1G74 (probably HC and HCT too), which is a single-gate version of the 74xx74. It has just 8 pins and is available in space-saving packages. Em sex, 24 de mai de 2019 17:23, David Van Horn < david.vanhorn@backcountryaccess.com> escreveu: > I know I can do this with a 74xx74 chip, but the real estate is > depressingly huge for such a simple function. > > This application should fit in a 5 pin SOT package. VCC, GND, Clkin, I > and Q out. > Does anyone here know where I can find such a chip? > > Max frequency is <5MHz, VCC would be 2.5V minimum, and 3.3V max. > > > -- > David VanHorn > Lead Hardware Engineer > > Backcountry Access, Inc. > 2820 Wilderness Pl, Unit H > Boulder, CO 80301 USA > phone: 303-417-1345 x110 > email: david.vanhorn@backcountryaccess.com david.vanhorn@backcountryaccess.com> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .