Hi! I have a big FIFO chip covered by dust, that I'd like to finally use. The most useful application I'm imagining for it is to finally make myself a logic analyzer. This FIFO (Texas Instruments SN74V3690-6PEU) is a 3.3V device, but has 5V tolerant inputs. "Great!" I thought.
What I'm asking you is: should I connect the probes (just a header cable) directly to the FIFO, or should I use an high speed buffer inbetween? Consider that the chip is specced at 166MHz.
Moreover, what is the cheapest way to produce a variable clock speed up to 166MHz (and possibly beyond, for other applications)? A PLL? Any chip you may suggest me?
Thank you! TPM