Looking for an 8-bit SIPO Shift Register that is tolerant of 12V+

The supply is required for the interface because the +5 from the USB port does not pass thru.

Also if the target is 3.3v the USB power won't kill your target system.

I would suggest to any one starting with PIC devices to get a PICKIT3 over a PICKIT2.

The PICKIT3 supports more and newer devices.

If the extra $15 is a problem:

hamilton

PS: would you really suggest to a beginner to jump into ARMs ?

Look up "JDM programmer" (I am assuming you have a serial port). In any case a PICSTART-3 is $50

Certainly not, in general, but there might be some cases where it would make a lot of sense, especially if the beginner has a relatively up-to-date programming background.

This sort of thing, for example:

... which is only $60 and fits a breadboard.

It's probably a bit overkill for replacing a shift register and 555, though.

Best regards, Spehro Pefhany

--
"it's the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

LOL, like most questions posted here, the simple answer is not the whole story.

I wonder what the OP was trying to actually do.

Two chips will not complete the project, I'm sure.

With it being automotive, I am sure there will be lots of circuitry remaining to include.

I hope the OP shares his results.

hamilton

I'm contemplating the idea of adding yet another farkle to my motorcycle: sequential LED turn signals like those found on Mercury Cougars, if memory serves. I envision an 8x3 LED array with each column of 3 LEDs sequentially illuminated to indicate the intended direction of a turn.

It will certainly take more than two chips, but I think that the TPIC6C595 will replace a 74164 and a high-current driver chip; so that helps some.

I resigned myself to using 5V chips and a well-protected regulator; and it turns out that I will likely use a 556 timer.

If or when I commit to completing this project, I would be happy to share my results.

Thanks to everyone for all the help.

On a sunny day (Sun, 21 Aug 2011 13:06:46 -0700) it happened Rich Grise wrote in :

Well I dunno about heroics, I avoid the low voltage in circuit programming as it eats an I/O pin. I wrote my own programming software for the 18F14K22, and the hardware costs nothing if you have a junk box and a 12VDC wall wart.

Programs the chip in a few seconds via the par port. I use gpasm part of gputils in Linux and that costs nothing either if you have a PC.

Microchip makes [almost [1]] all data you need available, and for somebody as smart as you considering all your previous postings, writing some soft should be easy.

[1] not *all* data, but there are helpful people here.

LPC1111. Not PIC, but just as expensive compared to a mid range PIC and programmable by a serial port. Alle you need is a RS232 to TTL converter chip or a USB to serial converter chip.

--
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
--------------------------------------------------------------

Olimex has a large number of header boards you can use as a building block to get started.

--
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
--------------------------------------------------------------

Oh, I confess I'm an awesome programmer, it's just the expense of the development system I'm trying to avoid - I have kind of a shoestring budget. :-)

Thanks! Rich