
Document Number: 001-51027 Rev. *G Page 15 of 22
Part Numbering Nomenclature
Packaging Option:
TR = Tape and Reel
Blank = Tube
Speed:
25 - 25 ns
35 - 35 ns
Package:
S = Plastic 28-pin 330 mil SOIC
STK12C68 - S F 45 I TR
Temperature Range:
C - Commercial (0 to 70 °C)
P
W = Plastic 28-pin 600 mil DIP
C = Ceramic 28-pin 300 mil DIP
L = Ceramic 28-pin LLC
= Plastic 28-pin 300 mil DIP
Lead Finish
F = 100% Sn (Matte Tin)
45 - 45 ns
I - Industrial (–40 to 85 °C)
Ordering Information
These parts are not recommended for new designs. They are in production to support ongoing production programs only.
Speed (ns) Ordering Code Package Diagram Package Type Operating Range
25 STK12C68-SF25TR 51-85058 28-pin SOIC (330 mil) Commercial
STK12C68-SF25 51-85058 28-pin SOIC (330 mil)
STK12C68-SF25ITR 51-85058 28-pin SOIC (330 mil) Industrial
STK12C68-SF25I 51-85058 28-pin SOIC (330 mil)
STK12C68-PF25I 51-85014 28-pin PDIP (300 mil)
45 STK12C68-SF45TR 51-85058 28-pin SOIC (330 mil) Commercial
STK12C68-SF45 51-85058 28-pin SOIC (330 mil)
STK12C68-SF45ITR 51-85058 28-pin SOIC (330 mil) Industrial
STK12C68-SF45I 51-85058 28-pin SOIC (330 mil)
STK12C68-C45I 001-51695 28-pin CDIP (300 mil)
All parts are Pb-free. The above table contains Final information. Contact your local Cypress sales representative for availability of these parts
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