Rainbow-electronics ATF2500CQL Manuel d'utilisateur télécharger pdf (Page 26)

ATF2500CQL

0777G–12/01

ATF2500CQL Register AC Characteristics, Input Pin Clock

Symbol Parameter

-25

UnitsMin Max

COS

Clock to Output 12 ns

CFS

Clock to Feedback 0 7 ns

SIS

Input Setup Time 20 ns

SFS

Feedback Setup Time 20 ns

Hold Time 0ns

Clock Width 8ns

Clock Period 146 ns

MAXS

External Feedback 1/(t

SIS

+ t

COS

)31MHz

Internal Feedback 1/(t

SFS

+ t

CFS

)37MHz

No Feedback 1/(t

) 62 MHz

ARS

Asynchronous Reset/Preset Recovery Time 20 ns

ATF2500CQL Register AC Characteristics, Product Term Clock

Symbol Parameter

-25

UnitsMin Max

COA

Clock to Output 22 ns

CFA

Clock to Feedback 12 18 ns

SIA

Input Setup Time 15 ns

SFA

Feedback Setup Time 10 ns

Hold Time 12 ns

Clock Width 14 ns

Clock Period 28 ns

MAXA

External Feedback 1/(t

SIA

+ t

COA

)27MHz

Internal Feedback 1/(t

SFA

+ t

CFA

)36MHz

No Feedback 1/(t

) 36 MHz

ARA

Asynchronous Reset/Preset Recovery Time 15 ns

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 36 37

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Rainbow-electronics ATF2500CQL Manuel d'utilisateur Page 26

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