Hi PJH I have been running an ISD4004 using 3 x 1N4004's to drop 5 V regulated down to something around 3V. I suspect it is not a robust solution but it has been working for about 6 months with nothing untoward happening. Yet. Steve -----Original Message----- From: PJH To: PICLIST@MITVMA.MIT.EDU Date: Thursday, August 05, 1999 5:50 PM Subject: ISD chip Vcc? >PICers, > >I've been looking at the ISD 33000 >voice player chip. It's OK but >needs a 3V supply & 3V regs are >awkward to get ahold of. Anybody >know how critical the 3V limit is? > >The data sheet is a bit obscure but >there is a test cct shown operating >on 3.3V. Just wondering if using 3 >diodes to drop the Vcc would be OK? >It's just that Vcc then becomes a >little uncertain for different >diodes. Would that upset things? > >Thnax - PJH >