9A5TD wrote in message
...
Is there any way to find D444C RAM, 2 -pcs.

I need it to repair one old HP function generator.

TNX



Add uP or properly muP to the decice type if NEC


some related info from one of my tips files below

On transistors marked C???? read 2SC????,similarly
A????-2SA????,B????-2SB????,D???? read as 2SD????.
Also ICs marked A???? can mean LA???? (Sanyo) and
B???? can be LB????,C???? can be LC????.
Also C???? and PC???? can mean uPC???? (NEC,for u
read mu) and D???? can mean uPD????.
On Sony ICs of the 70s and 80s marked with 3 digit numbers and no
leading letter such as 174A and 174-2 read as CX174A and CX174-2
Motorola MC14??? usually you can drop the 1 and then read remainder as
normal CMOS 4000 series number.
Signal diodes with one wide band followed by 3 coloured bands ,
one convention, eg
wide red , black, blue,red may mean the last 3 digits of the
type is 062, in this particular case 1N3062

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Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
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