On Tue, May 17, 2022 at 12:35 AM ben via cctalk <cctalk@classiccmp.org> wrote:
> Did DEC not use a few Non TTL chips to reduce I/O loading on the bufferd > lines? > DEC used non-TTL buffer chips for bus interface (Omnibus, Unibus, Qbus, and external buses like Massbus). Most of the other SSI/MSI logic chips are TTL or TTL-compatible. TTL buffers were usually used where higher fanout was needed on a module, or on non-bus backplane connections.
