1 Mar
2003
1 Mar
'03
2:34 p.m.
Charles wrote:
All of them were labeled "DEC7440" with a
date
code of 7005!
Seems like the chip
manufacturer must have had a few specks of dust in the fab
room that day in Apr. 1970...
Sorry I don't have anything to add about the apparently failing group
of 7440 IC's, but I do have a comment about date codes.
The date code of 7005 would actually be late January, 1970,
specifically,
somewhere during the week of Sun-25 through Sat-31.
The last two digits of the date code are the week, not the month, of the
year.
Rick Bensene