10 May
2005
10 May
'05
2:12 p.m.
Not enough info. The core I have has the DIP socket but nothing in it.
Allison
I have a 10 page specification for the DR118. ( may or may not be equal
to a DR118A....)
The DR118 exists in 8K (pn61801) and 16K versions (pn 61802)
I can provide you ( and/or Al ? ) with a copy if interested. ( Low
quality 7th generation photocopy I'm afraid)
(if in hurry provide a fax number ...)
In short : dip position 1 until 8 are the decoded enables for the 8
4K fields 0..7( generated by a 74s138)
Dip position 11 to 14 are the inputs to a 74s20 the output of which is
the actual enable.
Position 9,10 and 15 16 are unused.
Jos Dreesen