"Graeme Zimmer" wrote in message
...
My ancient Mororola Selection Guide say that MC1350, MC1445, MC1545 and MC
1490 "use the same basic die with with slightly different test parameters"

Mostly different temperature ranges...

Perhaps this will help

Regards ........... Zim


This help at all?
http://www.datasheetarchive.com/pdf-...-1/204-166.pdf

http://www.datasheetarchive.com/pdf/...SA00256652.pdf