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SN7490

Information - Help 
ID = 40794
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Tube type:  IC - Integrated Circuit   Universal 
Identical to SN7490
Similar Tubes
Other class quality (otherwise equal):
  MM74C90 ; SN74290 ; SN74LS90
Other base and data slightly different:
  SN74390

Base SPECIAL TUBEBASE in general
Filament Solid State
Description

TTL: asynchroneous decade counter with BCD out.
-

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
19 x 7 x 8 mm / 0.75 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
  sn7490.png
  SN7490: Funktechnik 13/73
Egon Strampe
 
7490.jpg
SN7490: P.ST
Peter Steffen

 
sn7490_s.gif
SN7490: Elektor 1977
Günther Stabe

 

Usage in Models 1= 1971? ; 1= 1971 ; 2= 1972?? ; 2= 1972? ; 2= 1973? ; 1= 1973 ; 1= 1974 ; 1= 1975?? ; 1= 1975? ; 1= 1975 ; 2= 1976? ; 1= 1977? ; 2= 1978 ; 1= 1981

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):19


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