11 Feb
2007
11 Feb
'07
5:31 p.m.
Glen Slick wrote:
Looks like the 16R8 has 8 inputs, 8 D/Q outputs with feedback, 1 clock
input, and 1 output enable input. Looks like there are 32 columns (8x
input True/False plus 8x D/Q feedback True/False) and 64 rows (8x
product terms into each D/Q output) for a total of 2048 fuses. So I
think that would be 256x8, not 512x8.
At 2 am I am not great with my sums. I found what I was looking for with
TI PALS and programing them is not that easy since you need switch between
+5V, 0V, +10.5V and High Impedance ... other than that no problem.
I can use pals but I don't expect them to reduce my logic as much as
I expected since I need 16L8 rather than 16R8 another mistake make
early in the morning after I found some data sheets.