Using an ICL7660 to feed -5VDC to 4116 DRAMs?

Roy J. Tellason rtellason at verizon.net
Wed Jul 2 21:31:24 CDT 2008


On Wednesday 02 July 2008 21:13, Scanning wrote:
> According to the Motorola datasheet - " All voltages referenced to Vss (
> 0V) and Vbb ( -5 Volts ) must be applied before and removed after other
> supply voltages ".

Ah.  I'd recalled that as being the case with some chips,  but wasn't 
remembering whether that applied to the 4116 in particular...

Nice to have it confirmed.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin



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