piclist 2002\02\18\121704a >
Thread: logic gate speeds
face BY : Ted Mawson email (remove spam text)

The maximum clock speed I understand that a PIC can count at is 50 MHz - correct?

I want to count at higher frequencies - up to 500 MHz and I'm looking to use a logic counter to divide 500 by 16 and give an input frequency into the PIC of  500/16 = 31.25 MHz.

There's a 7400 series chip, the 74F161 that divides by 16 but the max i/p frequency is 100 MHz.  Are there any 7400 series other than F that can go faster or any equivalents that y'all know of?

Can anyone point me to a counter, ideally pre-settable and with accessible (to read) outputs, that could take a clock input for counting faster than 100 MHz and divide by 16?

Ted Mawson

http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.

<002201c1b89f$9e86a6a0$6700a8c0@HOMELAN> 7BIT

See also: www.piclist.com/techref/microchip/devices.htm?key=pic

Reply You must be a member of the piclist mailing list (not only a www.piclist.com member) to post to the piclist. This form requires JavaScript and a browser/email client that can handle form mailto: posts.
Subject (change) logic gate speeds

month overview.

new search...