3 Feb
2012
3 Feb
'12
7:54 a.m.
On 2012 Feb 2, at 11:01 PM, Chuck Guzis wrote:
On 2 Feb 2012 at 22:44, Brent Hilpert wrote:
Well, I can't find any references for any SN99xxx ICs. I wonder if TI
used SN99 as a prefix for custom ICs.
Is there a date code? (I'm guessing
mid-late-70s). Haven't found any
mention in the 1981 IC Master, which is generally pretty good for
these sort of things.
M7731, so I'm guessing 1977, which would be in line with the date on
the MCU (7740).