In article COwwc.24725$jl6.6833@edtnps89, says...

I'm building a SWRX with PLL frequency generator and need a 1/2 dozen of
these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.

The 74HC390, a dual decade counter in one package, has a maximum
clock frequency of 66MHz, and is readily available (or at least a lot
more so than the AS or S package -- less power draw too).


--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute.
(Known to some as Bruce Lane, ARS KC7GR,
kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com
"If Salvador Dali had owned a computer, would it have been equipped
with surreal ports?"

Dr. Anton T. Squeegee ) writes:
In article COwwc.24725$jl6.6833@edtnps89, says...

I'm building a SWRX with PLL frequency generator and need a 1/2 dozen of
these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.

The 74HC390, a dual decade counter in one package, has a maximum
clock frequency of 66MHz, and is readily available (or at least a lot
more so than the AS or S package -- less power draw too).

But given that the '192 is programmable, and this is a synthesizer
application, I suspect he wants the '192 for the divide by N counter
chain, not a fixed divider.

Michael VE2BVW

Dr. Anton T. Squeegee ) writes:
In article COwwc.24725$jl6.6833@edtnps89, says...

I'm building a SWRX with PLL frequency generator and need a 1/2 dozen of
these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.

The 74HC390, a dual decade counter in one package, has a maximum
clock frequency of 66MHz, and is readily available (or at least a lot
more so than the AS or S package -- less power draw too).

But given that the '192 is programmable, and this is a synthesizer
application, I suspect he wants the '192 for the divide by N counter
chain, not a fixed divider.

Michael VE2BVW