Cypress CY7C1992BV18 Manual De Usuario

Document #: 38-05623 Rev. *D

Page 24 of 31

t

CO

t

CHQV

C/C Clock Rise (or K/K in single 
clock mode) to Data Valid

–

0.45

–

0.45

–

0.45

–

0.45

–

0.50

ns

t

DOH

t

CHQX

Data Output Hold after Output C/C 
Clock Rise (Active to Active)

–0.45

–

–0.45

–

–0.45

–

–0.45

–

–0.50

–

ns

t

CCQO

t

CHCQV

C/C Clock Rise to Echo Clock Valid

–

0.45

–

0.45

–

0.45

–

0.45

–

0.50

ns

t

CQOH

t

CHCQX

Echo Clock Hold after C/C Clock 
Rise

–0.45

–

–0.45

–

–0.45

–

–0.45

–

–0.50

–

ns

t

CQD

t

CQHQV 

Echo Clock High to Data Valid

0.27

0.27

0.30

0.35

0.40

ns

t

CQDOH

t

CQHQX

Echo Clock High to Data Invalid

–0.27

–

–0.27

–

–0.30

–

–0.35

–

–0.40

–

ns

t

CHZ

t

CHQZ

Clock (C/C) Rise to High-Z 
(Active to High-Z) 

–

0.45

–

0.45

–

0.45

–

0.45

–

0.50

ns

t

CLZ

t

CHQX1

Clock (C/C) Rise to Low-Z 

–0.45

–

–0.45

–

–0.45

–

–0.45

–

–0.50

–

ns

t

KC Var

t

KC Var

Clock Phase Jitter

–

0.20

–

0.20

–

0.20

–

0.20

–

0.20

ns

t

KC lock

t

KC lock

DLL Lock Time (K, C)

1024

–

1024

–

1024

–

1024

–

1024

–

Cycles

t

KC Reset

t

KC Reset

K Static to DLL Reset

30

30

30

30

30

ns

 (continued)

Over the Operating Range 

[20, 21] 

24. t

CHZ

, t

CLZ

, are specified with a load capacitance of 5 pF as in (b) of 

. Transition is measured ± 100 mV from steady-state voltage.

25. At any voltage and temperature t

CHZ

 is less than t

CLZ

 and t

CHZ

 less than t

CO

.