Hello, friends!
Please if anybody can help me with these old IC-s from
Siemens: FZH111a and FZJ111 : what is their function,
power supply and possible complement?
Best regards, JMarko
The parts FZH111 and FZJ111 were manufactured by at least by Siemens and by Valvo. The logic function is as desrcibed by ElecCompSolutions.
The chips used DTL (Diode-Transistor Logic) which was a predessesor of of the TTL (Transistor-Transistor-Logic) manufactured in the late 60s. If neccesary I could provide basic data and pinout from an old Valvo databook but it might take some days to find it.
I too have trouble finding this particular IC range and would like to get a complete equivalent list. Once I know it's equivalent I can look up the data in the CMOS data book. Thanks to Electriuwe for the clue. I have previously done searches through Siemens and come up empty. Also tried Valvo and that was very interseting they make RF circulators etc. Couldn't find IC's. Can anyone help me with locating an equivalent list ?