🚀 go-pugleaf

In article <1381@umigw.MIAMI.EDU> dnelson@mthvax.cs.miami.edu (Dru Nelson) writes:
>The MC145406 requires + and -
>5 volts to + and - 12 volts power supply
>There
>are 3 drivers and 3 receivers per package.
>
>Recently introduced is the + 5 volt only MC145407P which only requires
>+5 volt input supply and generates internally + and - 10 volts to
>permit full compliance with the RS-232 spec.  There is enough supply
>power generated to power an additional MC145406 device if so desired.
>The MC145407 has three drivers and three receivers also.
>

Has anyone seen pricing for these chips ?  (quan 1 & quan 1K)
Does anyone know if SK or ECG or other has already or plans to product
a replacement (copy) ?
Has anyone found these (starting to be or whatever) being stocked on the
local level at electronic supply or hobby shops or something ?

Is the old maxi 5 Vcc rs232 driver chip directly replaceable by the
MC145407, or did MC pick some different pin out ?

AL