10 May
2001
10 May
'01
6:04 a.m.
Indeed. I have a bunch of MECL 300 Series stuff, with a datasheet
dated March 1967, and parts which appear to have 1964 date codes.
Logic levels were "0" = -1.55V and "1" = -0.75V. The flip flop
toggles at 30MHz, not bad for the Apollo era.
I went ahead and scanned in parts of the datasheet:
http://www.geocities.com/fwhite/mc300
Fredric
ajp me writes:
ECL is one of the oldest logic families with ECL 1000
dating
back to the 60s! I know I still have some of the old moto ...